RU2385409C2 - Method of extracting fluid from reservoir of one well with electric drive pump equipped with electric valve and installation for implementation of this method - Google Patents

Abstract

FIELD: oil and gas industry.

SUBSTANCE: method consists in lowering assembly containing flow string equipped with at least one packer for uncoupling objects with disconnector- connector or without packer, electro-driven pump without or with case furnished with inlet module, power cable, submersible electric motor with or without block of submersible telemetry, shank end and at least one controlled electric valve with gate. Valve opening regulates fluid flow at least from one object passing through the valve to the above positioned inlet module of electric driven pump. According to the invention the electric valve of electro-magnetic or electro-mechanical operation is electrically connected either with immersed electric motor or with the block of immersed telemetry or with the cable. Additionally, it is connected mechanically rigidly or not rigidly either with immersed electric motor, or with the block of submersible telemetry, or with the case, or with the shank end. Also electric valve is positioned above the packer. Notably, the electric valve is made either with one inlet hydraulically connected with space under the packer or above the packer, or with two isolated inlets, one of which is hydraulically tied with space under the packer, while another is tied with space above the packer; or the assembly can be equipped with two electric valves, one of which is hydraulically connected with space under the packer, while another is connected with space above the packer thus facilitating both controlled shutting off and passing flow of fluid through it for an upper or lower object, or simultaneously for lower and upper objects without or with measurement of flow parametres. There are versions of facility for implementation of this method.

EFFECT: increased efficiency of process for extracting reservoir fluid ensuring stock taking and regulation of yield of each operated object.

32 cl, 30 dwg

Description

The invention relates to techniques and technologies for the production of hydrocarbons (oil, gas condensate, etc.) in multilayer fields and is intended to implement ORRNEO technology (simultaneous-separate development of several production facilities) by wells with an electric drive (electric submersible) pump using a controlled electric valve, in particular when simultaneous and separate production (ORD) of oil from two reservoirs (regulation, accounting, research and cutting off fluid flow) by one well.

There is a method of simultaneous and separate development of several operational facilities (ORRNEO technology) and a downhole installation for its implementation (RF Patent No. 2211311, ЕВВ 43/14, bulletin No. 24 dated 08/27/03), including exploration, drilling, exploration and perforation of operational objects, descent on the pipe string of the well installation, consisting of several sections separated by a packer, development and separate operation of objects.

A well-known well installation for simultaneous-separate and alternate operation of several layers in one well (RF Patent No. 2262586, ЕВВ 43/12, 34/06, bulletin No. 29 dated 10/20/05), including one or more columns lowered and installed in the well pipes, while at least one pipe string is equipped with at least two devices - a packer and a disconnector, and the installation can, after lowering into the well and hermetically landing at least one packer, disconnect the column from it pipes and extraction from important, then lowering and installing into the well a string of pipes of a larger, smaller, or equal diameter, without or with one or more of the devices — a packer, a disconnector consisting of removable and non-removable two parts and a pump, the pipe string being lowered into the well and not connected or connected hermetically, but not rigidly, through the disconnector with the corresponding packer, while the shoe of the pipe string below the packer installed above the lower layer is hydraulically disconnected or connected to the bottom of the well.

Known methods and installations do not allow controlling various conditions from the well surface (in particular, the states of "opening", "closing" of control devices, measuring, determining and regulating from the mouth fluid flow rate for each of the layers of one well. That is, they do not allow optimizing production using remotely controlled downhole valves to control fluid flows (inflows, expenses) from individual objects (hydrodynamic zones).

A well-known installation (analogue) for simultaneous and separate operation of multilayer wells (US 6119780 A (SAMCO INT), 19.19.2000), separating the reservoirs with packers and providing controlled selection of fluids from each reservoir using a controlled electric valve corresponding to this reservoir and installed on the column pipes under the pump and under the packer located above this reservoir. This solution, firstly, does not allow changing the electric drive pump and the electric valve without lifting the packer, which has a 2-3 times longer service life, and secondly, reduces the reliability of the electric drive pump due to the transmission of axial load on it during mechanical landing packer.

A known method (prototype) of the simultaneous and separate operation of multilayer wells (RF Patent No. 2313659, ЕВВ 43/14, bulletin No. 36 dated 12/27/07), including the descent into the well of at least one pipe string equipped with a packer between the layers and a regulating device for controlling the flow rate of the fluid during production, while in the pump well at the level of its formation, a pipe string or control device is equipped with a measuring transducer to transmit information from measurements to the surface of the well and determine the technological parameters of the fluid yuida during production, for which a cable is lowered into the well outside or inside the pipe string and connected to a measuring transducer or regulating device or both to a measuring transducer and to a regulating device, and after installing the wellhead, a fluid is produced by guiding it through the regulating device and measuring transducer, receive measurement information from the measuring transducer at the mouth and determine the technological parameters of the fluid for the formations, and if they differ from the design value from the throughput section of the control device is changed until the design value of the technological parameters for each of the layers is reached. In this case, one of the options for the control device is in the form of an electric or electromagnetic valve with a shut-off element, and the degree of its opening is controlled from the surface of the well by supplying a signal through a cable. To implement this method using a pump, a circuit with a casing is proposed, in the internal cavity of which a fluid flow from at least one formation is directed through a regulating device.

This arrangement limits the scope of the method due to the lack of casings with an external diameter sufficient for lowering into production casing of small diameter, and with an internal diameter sufficient for the use of submersible electric motors of the required power.

The problem solved by the invention is to increase the efficiency of oil production from two (several) formations of one well in a multilayer field, ensuring reliable operation of the electric drive pump through the use of an electric (electric) valve in the form of an electromagnetic or electromechanical valve.

The technological and technical results when using the method for operating two (several) producing strata in one well in a multilayer field can be achieved due to the possibility of: controlling from the surface of the well various conditions (in particular, “open”, “closed” states) of the electromagnetic valve or the degree of opening flow area electromechanical valve; metering by measuring and determining (at the wellhead) without costly studies of fluid production for each wellbore; separate development of producing strata or injection of a working agent into strata; a separate study of each of the layers; differential effects on formations by creating depression on them; separate jamming or separation (isolation) of the layers; regulation or maintenance of the optimal range or bottomhole pressure for the formation in the well; regulation of the design fluid flow rate in the well strata.

The economic effect of using the invention for a production well can be achieved by: increasing oil recovery in the disaggregation of production facilities, reducing capital costs for drilling additional wells; increase hydrocarbon production; reduce energy costs, reduce the time to conduct research and measurement of reservoir parameters; increase the well overhaul period, increase the mean time between failures and the service life of the pump unit.

The aim of the invention is to increase the efficiency of the technology for producing reservoir fluid from at least one object (reservoir) of one well equipped with an electric submersible pump with a packer and an electric valve with the ability to account for and control the flow rate of each of the operated facilities.

When producing fluid from (two) layers of one well, an electric drive pump lowers into the well an arrangement (one or two sections) consisting of a pipe string (hermetically, rigidly or not rigidly connected to the packer), equipped with at least one packer for separation of objects (lower and upper) with or without a disconnector-connector, an electric drive pump (EH) without or with a casing equipped with an input (receiving) module, a power cable, a submersible electric motor (SEM) without or with an immersion telemetry unit (BPT), a shank and at least one controlled (from the well surface by applying a signal through a power or additional cable) electric (electromagnetic, electromechanical, electric drive) valve (EC) (with input and output channels) with a shut-off element (the degree of opening of which is controlled), opening which regulate fluid flow from at least one object passing through the valve to the upstream inlet module of the electric drive pump

The purpose of the invention is achieved in that an electric valve (EC) of electromagnetic or electromechanical action is electrically connected (with one or more elements -) either to a submersible electric motor (PED), or to a submersible telemetry unit (BPT), or to a cable, as well as its they are connected mechanically rigidly or not rigidly either with a submersible electric motor (SEM), or with a submersible telemetry unit (BPT), or with a casing, or with a shank, and the electric valve is located above the packer, while the electric valve either with one inlet hydraulically connected to the space under the packer or above the packer, or (one valve is made) with two insulated inlets, one of which is hydraulically connected to the space under the packer, and the other with the space above the packer, or the layout is equipped with two electric valves, one of which is hydraulically connected to the space below the packer, and the other to the space above the packer, while providing the possibility of controlled both cutting and passing a fluid flow through itself (respectively) for for the upper or lower pole object, or simultaneously for upper and lower objects without or with the measurement (determination) of the flow parameters.

To achieve the goal, the following particular solutions can be used.

ECs are mechanically coupled (with one or more elements) either to the SEM at the end, or to the BPT at the end or to the side, or with a casing inside or in the form of its element (lower section), or with a shank inside, or outside, or in the form of it element (section), either with a column of pipes inside or outside, or in the form of its element (section), moreover, the electric valve is connected either rigidly through one or more connections - flange, threaded, welded, bell-shaped, adhesive, solder, embossed, riveted or not rigidly, with or without fixation, through one or more connections eny - telescopic, clamps, nozzles, wire, flexible elements in the landing nipple or pocket borehole chamber.

The degree of opening of the valve of the electric valve from the surface of the well is controlled by supplying direct or alternating electric current through a power or additional cable, while the valve both separate and hydraulically communicate the valve inlet and outlet channels, respectively, to shut off or open the fluid flow from the object to the input module of the electric drive pump, while changing the flow rate of this object by opening (the degree of opening) of the shutter of the electromagnetic valve according to a given program (in specified periods of time), moreover, the electric valve is either in the form of an electromagnetic valve (cut-off) with an actuator, or in the form of an electromechanical valve (regulator) with a drive, and either an electric centrifugal pump, or screw, or diaphragm is used as an electric drive pump, and either above the upper object, or at its level, or below it, in the last two cases when the reservoir fluid flows through an electric valve insufficient to cool the submersible motor When eating, the electric drive pump is additionally equipped with a casing.

Close or open the shutter of the electric valve, respectively cutting off or passing through it (EC) the fluid flow from at least one object by supplying a control signal (command) to the EC from the surface of the well through a communication channel, which is used as either a power cable , or an additional (individual) cable or pipe string, and control is based on information about the measured values transmitted via the same or additional communication channel, while the control signal is supplied by electronic an electric circuit without or using a hydraulic actuator, and in the latter case either a control signal is transmitted through a command medium from an automatic control system (to a positioner or other type of relay), or a force is applied through a control medium to the actuator or actuator to move the shutter to the desired position .

Objects are separated using a packer (a packer section consisting of a pipe string, a lower receiving device — a nipple or a borehole chamber and a disconnector-connector above or without a packer), into the lower and upper operational objects, while the flow (flow rate) is controlled by EC formation fluid either from the lower production facility, or from the upper production facility, or simultaneously from the lower and upper production facilities. In this case, they either conduct simultaneous and separate production of formation fluids from production facilities, regulating their flow rates, or ensure the operation of the electric drive pump in the mode with the maximum efficiency, or limit the flow rate of the facility with fluids having a high water cut, or gas content, or temperature, or pressure, or concentration of complicating (negatively affecting the reliability of the pump) components - sand, salt, paraffin, corrosive components, and they change the flow rate without or using additional control systems — throttling of the flow at the wellhead, periodic turning on and off of the electric motor, regulation of the rotor speed (rotational speed, operating time) of the submersible electric motor either by changing the current frequency when using a three-phase electric motor, or by converting EMF signals when using a controlled valve electric motor.

The objects are divided by the packer (packer section) into the main operational object and (at least one) auxiliary object, and the layout is performed with the possibility of both isolation and communication through the electric valve of the auxiliary object with the input module of the electric drive pump, while connecting the auxiliary the object, opening the shutter of the electric valve either during the development of the main operational facility (simultaneously or after starting the electric actuator) without or with its subsequent closure (shutter apana) after the full development and introduction of the main operating facility to the specified technological mode, or during the study of the main operating facility in the technological mode with a flow rate less than the lower permissible limit of the electric drive pump performance, or when the bottomhole pressure at the main operating facility decreases below an acceptable level, or when producing highly viscous oil from the main facility with hydrotransport, less viscous fluids (water) of the auxiliary facility, or when the increase in the reservoir fluid of the main production facility of the permissible concentration of one or more complicating (harmful) components - sand, salt, water-oil emulsion, paraffin, gas, corrosive components, mixing them with the reservoir fluid of an auxiliary object with a lower concentration of these (complicating) components ( for example, water), or when oil is extracted from a low-productivity main production facility at a technological mode less than the capacity of an electric drive pump of a minimum standard size thereby preventing periodic operation of the pump or disruption of its supply, or gas cavitation (at low pressure), or overheating of the submersible motor, or when operating the electric drive pump outside of its control characteristic, or to prevent an unacceptable decrease in pressure at the level of the electric drive pump, or to prevent unacceptable excess temperatures of the submersible motor, while using either the control of the electrical safety valve for feedback (automatic controlled control) based on the measured parameters (using immersion telemetry or a measuring transducer), either programmatically controlling the opening of the shutter of the electric valve, or with the automatically opening shutter of the safety valve for (overpressure relief) bypassing the additional fluid from the auxiliary object to the input module of the electric drive pump when achievement of boundary (threshold) values of pressure or temperature, and using one or several development elements saturated with hydrocarbons - a horizon, a reservoir, a reservoir, a separate section or thickness of a reservoir, which are exposed by a wellbore with a sidetrack or perforation interval in the reservoir, or in the most cost-effective of the jointly exploited reservoirs, or oil-saturated, or promising, or unreached or low permeability, or requiring maximum exposure to depression, or untreated, or in a reservoir with low reservoir pressure, or in an oil rim, and as an auxiliary of an object using an electric valve, continuously or periodically connect one or several places of fluid inflow into the well - leakage of the production string, the interval of perforation of the formation or the least profitable of the jointly exploited formations, or developed, or flooded, or polluted, or unprofitable with hard-to-recover or non-industrial reserves or unsaturated with hydrocarbons, or water-saturated, or water, or an object that falls under a different tax rate relative to the main operational facility, or an object owned by another subsoil user.

One or several parameters of the fluid flow is measured (recorded) - flow rate, pressure, temperature, water cut, gas content using a measuring transducer installed either in the EC or outside it (below it) - in a hydraulic channel with a fluid flow passing through it from the object at the same time, the measuring transducer is connected to the BTU for further transmission to the surface via a power cable along with the information measured in the BPT — pressure and temperature, converting them into an electrical signal or into an electric frequency pulses (using integrating analog-to-digital or time-pulse and bitwise coding analog-to-digital converters), and they are connected either with an electric wire or with the help of electromagnetic wireless telemetry devices (wireless transceivers - radio-frequency, inductive, infrared, acoustic, with data transmission by pressure pulses), then, depending on these parameters and the measured parameters of measuring systems located on the surface of the well - flow rate dkosti, water cut, the buffer pressure, annulus pressure, wellhead temperature recoverable fluid, the dynamic level, the power voltage and frequency, change flow rate, at least one object, an electric driving valve,

Without measuring the parameters of the fluid flow passing from the object (lower or upper, or auxiliary) through the EC, flow rate, water cut, gas content of the fluid, they are determined by the recorded changes in one or more physical quantities (physico-chemical properties) of the produced fluid - density, viscosity , concentration of trace elements, pressure or temperature at the level of the submersible telemetry unit, differential (by gradient) pressure or temperature at the valve (by the time of flow of the fluid flow and differential pressure at the valve, measure measured by a measuring transducer), or a dynamic level (according to its change - dynamics), at the same time, they either open the shutter of the electric valve to ensure continuous flow, or close the shutter, or open and close the electric valve in time (according to the specified program).

The layout (downhole installation, pipe string) is divided into two sections (parts, blocks) - the lower and upper, lower section (part) of the layout (pipe string) with a packer (at least one packer section) and a disconnector on the process pipes -connector above the packer, install the packer under the upper object, disconnect the process pipes from the disconnector-connector located on the upper end of the lower section (part) of the assembly, remove the technological pipes to the surface, then lower the upper section (part) to arrangements (pipe columns) with a sealing assembly located at its lower end (on the shank), which is hermetically, but not rigidly connected to the disconnector-connector of the lower section (part) of the arrangement, the upper section (part) of the arrangement being equipped with a sealing assembly from bottom to top, a shank (pipeline), an electric valve with or without a measuring transducer, BPT, a PEM with a power cable, an electric drive pump with an input module and with or without a casing, tubing.

The entire assembly is lowered at a time (a pipe string with an electric drive pump, a SEM and an electric valve is lowered simultaneously with at least one packer section), then a packer is installed under the upper object and reservoir fluids are extracted from at least one object, and the influx of formation fluids from another object is opened or blocked by a controlled electric valve, and if there is a casing, it is connected from above to the pipe string above the electric drive pump, and from below or to the packer (packer section), etc. moreover, the electric valve is located inside the casing or to the electric valve, while the electric valve is electrically connected to the BPT or to the PED electric wire passing inside the casing, and it is mechanically connected from above to the casing, and from below to the packer section, and in the absence of the casing, the electric valve is connected from the top to the submersible telemetry unit or to the SEM, and from below it is attached through the shank to the packer (packer section), while the packer is mechanical or electromechanical, and in the latter case, electromechanical An anic packer is either divided or combined with an electric valve, and it is installed (planted) by applying an electrical signal from the surface.

They provide an opportunity for two objects to both cut off and pass the fluid flow at a given flow rate while measuring or determining its parameters for at least one object, while either one electric valve is performed with two inputs (input channels), each of which hydraulically connected to the corresponding object, or the installation is equipped with two electric valves, each of which with its inlet is hydraulically connected to the corresponding object, and the electric valve is either placed on the casing, or combined with an electromechanical packer, double-barreled for eccentric (parallel) pipe columns, and one of the columns with the lower sealing unit is connected during descent with a disconnector-connector located above the packer installed above the lower object.

An additional cable is used either to control the electric valve, or to supply and transmit information from transducers installed inside or outside the electric valve, or to control an electromechanical packer, or to power and transmit information from transducers of a submersible telemetry unit.

To implement the method can be used one of the options for a downhole installation.

Option 1. A downhole installation for implementing the method, comprising a pipe string equipped with a packer (packer system) for separating the lower and upper objects with or without a disconnector-connector (located on top), an electric drive pump with or without a casing, equipped with an input module , submersible electric motor with or without submersible telemetry unit, shank, cable (power and / or optional) and electric valve.

The objective of the invention is achieved by the following technical solution.

An electric valve of electromagnetic or electromechanical action is electrically connected to either a SEM or to a submersible telemetry unit, or to a cable (power or additional), and it is also connected mechanically either to a submersible electric motor, or to a submersible telemetry unit, or to a shank, the electric valve is located above the packer, its outlet is hydraulically connected (through the annular puffer space) with the input module of the electric drive pump, and its inlet (isolated from the outlet by the shutter) is hydraulic cally connected (via tail) with (annulus) space below the packer, the electric valve is adapted to control both the cutoff, and passes through the fluid flow itself (from) the bottom object.

To increase the reliability and efficiency of the installation, the following technical solutions can also be additionally implemented.

EC (made in the form of an electromagnetic valve) is connected from above and mechanically (and simultaneously electrically) either to the SEM or to the immersion telemetry unit, and from below the electric valve is mechanically connected tightly or not rigidly to the shank (pipeline, pipe, pipe string under the SEM and under and / or above the EC), hydraulically connected with the under-packer space of the lower object, and when cutting off the fluid flow, the input of the electric valve is isolated from its output, or (it is connected) to the shank, while it is either three shanks and installed without or with fixation in the axial pocket of the nipple or the eccentric pocket of the borehole chamber, or in the annular clearance of the coupling, either outside the shank and installed in the eccentric pocket of the coupling or attached to the shank with clamps, or it is made as an integral part of the shank in the form of its section .

The EC is mechanically connected from above either to the PED or to the immersion telemetry unit directly through a flange or threaded connection, or to a shank in the form of a pipeline, or a hollow rod, or a rod, or a load-bearing element, while the electric valve is electrically connected to the PED or the immersion telemetry unit through an electric wire made either unarmoured, in this case it passes inside the shank, or in the form of an armored cable, in which case it is attached either with clamps or clamps to the pipeline or to the rod, or in the form of an unattached cable, the electric valve either located inside the shank and installed without or with fixation in the axial pocket of the nipple or the eccentric pocket of the borehole chamber, or in the annular clearance of the coupling, or outside the shank and installed in the eccentric pocket of the coupling or attached to the shank with clamps, or it is made as an integral element of the shank in the form of its section (module), and from below the electric valve is mechanically connected tightly or not rigidly to the shank (pipeline), hydraulically connected with subpacker space of the lower object.

The borehole installation is made of either two sections (parts) - the lower and upper, and the lower section (part) is lowered previously and equipped with a packer set below the upper object and a disconnector-connector at the upper end of the lower section, and the upper section (part) of the installation is lowered after (later) and equipped with an electric drive pump (with its input module without or with a casing), a power cable, a PEM, an electric valve, a shank (pipeline, pipe) and a sealing assembly located at the lower end of the upper section (part) and hermetically installed (rigidly or not rigidly) in the disconnector-connector of the lower part, forming a hydraulic channel from the lower object through the channel of the electric valve into the space above the packer to the input module of the electric drive pump, and this channel is open or closed (closed) by the shutter of the electric valve, or it (a well installation) is made of one section (single-section layout) of a pipe string, tightly, rigidly or not rigidly connected to a packer (packer section) without or with a disconnector - will connect the pipe string, simultaneously lowered together with the electric drive pump (with or without a casing), an electric valve and a packer installed under the upper object.

The EC is equipped with a measuring transducer installed either inside or outside the valve to measure the parameters of the reservoir fluid flow passing from the object to the input module of the electric drive pump through its input (or through its additional input or simultaneously through each of the inputs) hydraulically connected to the corresponding object, either it (the measuring transducer) is combined with a BPT, which is either integrated (combined) in the head of a submersible electric motor, or is made autonomously and is located directly under the SEM either above or below the electric valve, or it is built into the electric valve without or with an additional power source for the measuring transducer (pressure sensor) at the time of the cessation of supply of electric current (for example, for measuring the HPC), which can be charged after its supply.

On a single-section pipe string, tightly, rigidly or not rigidly connected to the packer section without or with a pipe string disconnector-connector, the electric drive pump with or without a casing, an electric valve and a packer section with a packer installed under the top object.

The EC input is made in the form of an axial channel located in the lower part of the valve under the shutter and is hydraulically connected to the object, and the electric valve output is made in the form of a radial lateral or angular, or axial (straight-through) at least one channel located above the shutter and hydraulically connected to the input module of the electric drive pump through the annulus.

The EC is made with a shutter (locking element, shut-off shutter) to completely open and close (with a certain tightness) the fluid flow of the lower object, while the shutter either moves parallel to the axis of the fluid flow, or rotates around its own axis and has the shape of a body of revolution or its part, either rotates around an axis perpendicular or at an angle to the direction of fluid flow and has a disk shape

EC is made with a shutter having the form of either a hemisphere or ball, connected or not connected to the actuator rod and located above or below the seat, or a truncated cone with a sealing surface corresponding to the conical surface of the seat, or a cylinder with a sealing cylindrical surface

The EC is made either normally closed or normally open with an actuator, which, in the absence or interruption of power supply, automatically provides (creates a switching force) the shutter switches to the position either “Closed” or “Open”, respectively.

The EC is made with a remotely located actuator or actuator not installed directly in it; in addition, to seal the movable rod from reservoir fluids, the valve is equipped with either an packing, or a bellows, or a membrane, or a (rubber) diaphragm.

The downhole installation is additionally equipped with one or more devices - a device for acting on a working agent or for jamming a lower object with a closed electric valve located under it and above the packer on a pipe string or liner, and this device is designed as a bypass valve or check valve in the well a chamber that opens when the pressure in the annulus above the packer exceeds the pressure in the pipe and annulus under the packer, an adapter from the electric valve to the liner, on which the packer is installed, by a receiving device for entering fluid pipe from the lower object into the pipe string, located under the packer on the pipe string, this device being made in the form of a nipple or radial flow coupling, or a cross flow coupling, or a downhole valve a chamber, an additional lower packer, mounted above an additional lower (lower) object, a receiving device for entering the fluid pipe string from an object located between the packers on the pipe string ub, and this device is made in the form of a cross-flow sleeve or valve in the borehole chamber, a centralizer located under the disconnector-connector on the lower part of the assembly and / or above the sealing assembly on the upper part of the assembly, a telescopic connection located under or above the electric valve, phase separation fittings (separator).

Option 2. A downhole installation for implementing the method, comprising a pipe string equipped with a packer for disconnecting the lower and upper objects with or without a disconnector-connector, an electric drive pump equipped with an input module, a casing (without or with) a shank, an immersion motor with with or without immersion telemetry unit, cable (power and / or optional) and an electric valve with or without connecting pipe.

The objective of the invention is achieved by the following technical solution.

An electric valve of electromagnetic or electromechanical action is electrically connected either to a submersible electric motor, or to a submersible telemetry unit, or to a cable, and it is also connected mechanically (rigidly or not rigidly) or to a submersible electric motor, or to a submersible telemetry block, or to a casing, or with a connecting pipe, the electric valve being located above the packer, its output is hydraulically connected to the input module of the electric drive pump, and its input is hydraulically connected to the (annular) transference over the packer, while the electric valve is made with the possibility of both cutting and passing through the fluid flow of the upper object.

To increase the reliability and efficiency of the installation, the following technical solutions can also be additionally implemented.

The downhole installation is additionally equipped with a cross-flow clutch located under the electric valve and connected rigidly or not rigidly to the casing from above, and from below it is mechanically connected to the liner or to the packer, and the cross-flow clutch is made with at least one radial channel hydraulically connected with its non-through axial or eccentric channel connected to the inlet of the electric valve through the connecting pipe for the controlled passage of the formation fluid of the upper object and, at least one longitudinal through eccentric channel hydraulically connected to the input module of the electric drive pump for constant passage of the formation fluid of the lower object, while the input of the electric valve is connected to the cross-flow coupling directly or through a connecting pipe (intermediate pipe) either threaded or flanged or telescopic sealing connection.

The casing at the top is rigidly connected to the pipe string above the electric drive pump, and at the bottom it is connected rigidly or not rigidly to the packer.

The downhole installation is additionally equipped with one or more devices - a device for acting on a working agent or for jamming a lower object with a closed electric valve located under it and above the packer on a pipe string or on a liner or on a casing, and this device is made in the form of a bypass valve or check valve in the borehole chamber, a centralizer located inside the casing above or below the electric valve, a sleeve for attaching the casing to the tubing above the electric drive by a sucker, a cable entry in the casing for passage of the power and / or additional cable, an adapter from the casing to the shank on which the packer is installed, a receiving device for entering the fluid pipe into the pipe string from the lower object, located under the packer on the pipe string, and this device is made in in the form of a nipple or valve in the borehole chamber, distribution and mixing valves.

Option 3. A downhole installation for implementing the method, comprising a pipe string equipped with a packer for disconnecting the lower and upper objects with or without a disconnector-connector, an electric drive pump with a casing, equipped with an input module, an immersion motor with or without immersion telemetry unit, power cable and at least one electric valve

The objective of the invention is achieved by the following technical solution.

An electric valve of electromagnetic or electromechanical action is electrically connected either to a submersible electric motor, or to a submersible telemetry unit, or to a cable (power or auxiliary), and it is also connected mechanically to either a submersible electric motor, or to a submersible telemetry block, or to a casing, wherein the output of the electric valve is hydraulically connected to the input module of the electric drive pump, and either the electric valve is made (at least) with two insulated inputs, one of which which is hydraulically connected to the space below the packer and the other to the space above the packer, or the layout is equipped with (at least) two electric valves, one of which is hydraulically connected to the space under the packer and the other to the space above the packer, while providing the opportunity controlled both by cutting off and passing through a fluid flow, respectively, for the lower or upper object or simultaneously for the lower and upper objects (with predetermined flow rates).

To increase the reliability and efficiency of the installation, the following technical solutions can also be additionally implemented.

The downhole installation is additionally equipped with a cross-flow coupling located under the electric valve and connected rigidly or not rigidly to the casing from above, and from below it is mechanically connected to the liner or to the packer, the cross-flow coupling being made with at least one radial channel hydraulically connected with its non-through axial or eccentric channel connected (in turn) with the inlet of the electric valve for controlled passage of the formation fluid of the first object and at least with about a longitudinal longitudinal through eccentric channel (isolated from its radial channel) hydraulically connected either with an additional inlet to the electric valve or with an additional electric valve for controlled passage of the formation fluid of the second object, while the inlet or additional inlet of the electric valve is connected directly to the cross-flow coupling or through an intermediate pipe (pipe) either threaded, or flanged, or telescopically sealing connection.

The output of the electric valve is hydraulically communicated at the same position of the shutter with the under-packer space, at a different position of the shutter with the over-packer space, at the third position of the shutter simultaneously with both the under-packer and over-packer spaces, moreover, the change in the position of the shutter is made along the axis of the valve or by rotating it with a stepwise electric actuator .

The downhole installation is additionally equipped with one or more devices - a device for acting with a working agent or for jamming a lower object with a closed electric valve located under it and above the packer on a pipe string or on a liner or on a casing, and this device is made in the form of a bypass valve or check valve in the borehole chamber, a centralizer located inside the casing above or below the electric valve, a sleeve for attaching the casing to the tubing above the electric drive pump, cable entry in the casing for passage of the power and / or additional cable with an adapter from the casing to the liner, on which the packer is mounted, with a receiving device for entering fluid pipe from the lower object located under the packer on the pipe string, and this device is made in the form nipple or valve in the borehole chamber, distribution and mixing fittings (mixer).

Option 4. A downhole installation for implementing the method, comprising at least one pipe string equipped with two packers (lower and upper), for separation of objects between themselves, with or without a disconnector-connector, an electric drive pump with or without a casing, equipped with an input module, a submersible motor with or without submersible telemetry unit, a cable (power and / or additional) and at least one electric valve.

The objective of the invention is achieved by the following technical solution.

An electric valve of electromagnetic or electromechanical action is electrically and mechanically connected on one side to either a submersible electric motor or to a submersible telemetry unit, and on the other hand to an upper packer made with two shafts for (two) downstream eccentric pipe columns, while the output of the electric valve hydraulically connected to the input module of the electric drive pump, and either the electric valve is made (at least) with two insulated inputs, one of which is hyd is influentially connected with the space under the upper packer, and the other with the space under the lower packer, or the layout is equipped with (at least) two electric valves, one of which is hydraulically connected to the space under the upper packer, and the other with the space under the lower packer, providing at the same time, the ability to control both cutting off and passing through a fluid flow, respectively, for an object located under the upper or lower packer, or simultaneously for these objects

To increase the reliability and efficiency of the installation, the following technical solutions can also be additionally implemented.

An electromechanical packer is installed under the additional upper object, and the layout, depending on the operating conditions of the well, is additionally equipped with one or more of the elements - an additional measuring system, a sealing element, a bypass system for bleeding free gas, a borehole chamber with a removable valve or a blind plug, or a level stabilizer fluid, or a gas pressure regulator, or a stand-alone measuring device for measuring the physical parameters of the formation flux stream yes, with an additional disconnector of the column above the electromechanical packer, an additional power cable for controlling the electric valve and / or the electromechanical packer, this cable either being connected to the power cable through an electrical switchgear or reaching the day surface to the control station.

The downhole installation is equipped with an additional power cable for controlling the electric valve and / or the electromechanical packer, and this cable is either connected to the power cable through an electrical switchgear or goes to the daylight surface to the control station.

Figure 1-30 shows various versions of installations for implementing the method with EC, opening or closing the flow of reservoir fluids from at least one object, in particular:

Installation according to option 1 (FIGS. 1-19) for continuous production of formation fluid from the upper object P ₁ with continuous or periodic production of formation fluid from the lower object P ₂ through an electric (electromagnetic) valve (EC)

figure 1 - General view of the installation with an electric drive pump (EH);

figure 2 - EC is connected through flanges with a submersible telemetry unit (BPT);

figure 3 - EC is connected through flanges with a submersible electric motor (SEM);

figure 4 - connection of the EC with the PED or with BPT through a pipe or pipe string with an internal location of the electric wire;

figure 5 - connection of EC with PED or with BPT through a hollow rod or (their) column;

in Fig.6 - connection of EC with PED or with BPT through a pipe or pipe string;

Fig.7 - connection of EC with PED or with BPT through a column of rods (rod) or using a cable rope;

on Fig - EC is located concentrically or eccentrically inside the shank;

in Fig.9 - EC is located eccentrically outside the shank;

figure 10 - EC, made in the form of angular reinforcement - with a lower axial and upper lateral (radial) arrangement of channels with a shutter in the form of a ball located above the saddle;

11 - EC is located in the nipple inside the shank;

on Fig - EC is located in the sleeve outside the shank;

in Fig.13 - EC is located in the pocket of the downhole chamber;

in Fig.14 - EC, made similarly to Fig.10 with a shutter in the form of a ball located under the saddle:

on Fig - EC with a cone-shaped shutter;

in Fig.16 - EC with a cylindrical shutter;

on Fig - EC with measuring transducers for measuring the parameters of the flow of reservoir fluids of the lower object;

on Fig - installation with EC, combined with an electromechanical single-barrel packer without or with a shank;

on Fig - installation with an additional downstream packer;

Installation according to option 2 (FIGS. 20-25) for continuous production of formation fluid of a lower object P ₂ with controlled continuous or periodic production of formation fluid from an upper object P ₁

on Fig - installation with EC with a cross-flow coupling (MPT);

on Fig - telescopic hermetic connection MPT with the pipe;

in Fig.22 - threaded connection MPT with a connecting pipe (pipe);

in Fig.23 - flange connection MPT with a connecting pipe;

on Fig - EC with channels mechanically connected to the casing without MPT;

on Fig - EC with a radial channel and connected to the casing;

Installation according to option 3 (FIGS. 26-27) with EC, with adjustable continuous or periodic production of formation fluid of both upper P ₁ and lower P ₂ objects

on Fig - installation with a three-position EC, a variant with two inputs and axial movement of the shutter;

on Fig - installation with two EC;

Installation according to option 4 (FIGS. 28-30) with an upper double-barreled packer for downstream eccentric (parallel) pipe columns with regulated continuous or periodic production of reservoir fluid of both object P ₁ and object P ₂ without or with an additional upstream object P ₃

on Fig - with one EC with two inputs, combined with the upper (for example, electromechanical) packer and (additional) lower packer:

in Fig.29 - with two EC with upper and lower packers.

on Fig - with two EC with upper and lower packers and with a casing.

Option 1. Installation (Fig.1-19) for the operation of one - the upper (software or two (upper and lower) production facilities (P ₁ and P ₂ ) wells includes lowered into the production casing 1 pipe string 2 or pipe string consisting from the lower section of the pipe string 2 and the upper section of the pipe string 3. The pipe string 2 is equipped with a packer 4 mounted under the upper object P ₁ (between objects P ₁ and P ₂ ) without or with a pipe disconnector (or telescopic connection) 19.

The pipe string 2 or the upper section of the pipe string 3 is equipped with an electric drive pump 5 with an input module 6, a PED (with hydraulic protection) 7 with a power cable 8, BPT 10 (thermomanometric system - TMS, immersion telemetry system, for example, СПТ-1) and a control device in the form of an electric valve (EC) 9, made in the particular case in the form of an electromagnetic valve (EC) 9 with an actuator 11 (for example, in the form of a solenoid) and without or with a measuring transducer 12 (control and measuring device) combined with EC 9 or located nearby with EC 9. The actuator (motor) 11 may be combined with EC 9 (as in fig.1-14) or separated from it (Fig. not shown). The shell EC 9, or rather IM 11 must have a degree of protection IP68 (degree of protection against environmental influences according to GOST 14254-80). In addition, EC 9 has an input channel 13 (for example, lower longitudinal, axial) and an output channel 14 (for example, upper lateral, radial), as well as a shutter 15 with a seat socket 16. A shutter 15 that separates or communicates between input 13 and output 14 channels using an actuator - an electric drive 11. EC 9 is connected from above with a PED 7 or BPT 10. According to the mechanical connection, EC 9 can be connected from above with a PED 7 or BPT 10 (for example, through flanges). By hydraulic connection, the input 13 of the EC from the bottom is hydraulically connected to the lower operating object P ₂ located under the packer 4, and the output 14 is connected to the input module 6 of the electric heater 5. Moreover, it can be connected to the object P ₂ or through the shank 17 (pipe string, pipe hollow rods) with a sealing assembly 18 installed hermetically, but not rigidly, in the disconnector-connector 19 (made, for example, in the form of a funnel) further through the pipe string 2 with its receiving system 20, as in FIG. 2, or through the pipe string 2 equipped with a packer 4, as in figure 3. The receiving system 20 can be made in the form of a funnel, nipple, or in the form of several or one borehole chamber 20. A centralizer 21 can be installed directly under the disconnector-connector 19 or above the sealing assembly 18. EC 9 is controlled by an actuator 11 from the surface via a power cable 8 , or additional cable 22 (armored, single-core or multi-core, load-bearing). Cable 8 or 22 or 8 and 22 are attached to the pipe string with clamps 23. On the shank 17 or in the pipe string above the packer, a device 24 can be installed to jam the lower object P ₂ , in case of failure of EC 9 or to supply a working agent to the reservoir P ₂ or an inhibitor to prevent deposition in EC. The device 24 is made in the form of a bypass valve or check valve installed in the borehole chamber.

EC 9 with an actuator 11 on top can be attached through its 11 housing directly to the BPT 10 (see figure 2) or the PED 7 (see figure 3) using a flanged BPT (F) connection 25, and from the bottom it is attached either to the shank 17, for example, through a threaded or flange connection 25, or to a pipe string 2, for example, through an adapter (pipe) 26 having a flange connection 25 on top, and a threaded connection to a pipe string coupling 2 or shank 17 from the bottom (see figure 2 and figure 3). When installing the EC 9 on the PED 7, the EC is structurally made, like the BPT, in the form of a sealed cylindrical suspension-type container. In the upper part of its housing there is a pressure seal for connecting to the output from the zero point of the stator winding of the PED, in Fig.2 - installation of two parts - the bottom, equipped with a packer, and the upper, equipped with EC, BPT and EN, EC connected directly (through flanges) with BPT; figure 3 - installation of the same layout, equipped with a packer, EC and EN, EC connected directly (through flanges) with a submersible electric motor (SEM); EC 9 can (see Fig. 4-7) be located at a remote distance from the PED 7, in which case it is connected to it 7 or to the BPT 10 using either an additional pipe or pipe string in the form of a shank 17, or an additional hollow rod or columns of hollow rods 27. At least one electric wire 28 for supplying power supply and electronic components (for example, with voltage 220 V, frequency 50 Hz) and for transmitting a control signal (command) to EC can be unarmored and located in the inner cavity of the pipe or hollow rod , and when it is located outside it nen in the form of an armored cable 22, in the case of using a long column attached to it with clamps (clamp) 23 for pipes 17 or rods 27. EC 9 can also be connected to PED 7 or BPT 10 using either an additional rod or rod string 29. B in this case, the armored cable 22 for transmitting the control signal (command) to the EC 9 is attached externally to the rod with clamps (clamp) 23 for the rods 29. EC 9 can also be connected to the PED 7 or to the BPT 10 using a cable (cable) 30 .

EC 9 can (see Fig. 8) be located (concentrically or eccentrically) inside (pipe string) of the shank 17, forming with the help of several or one more rigid or flexible connecting (fastening, guiding, fixing, restrictive) pipe (pipe) 31 through the hydraulic channel from the lower production facility P ₁ to the input module 6 EN 5.

EC 9 can (see Fig. 9) be located (concentric or eccentric) outside (pipe string) of the shank 17, forming with the help of an additional rigid or flexible pipe (sub) 31 through itself a hydraulic channel from the lower production facility P ₁ to the input module 6 EN 5. At the same time, EC 9 can be additionally attached to the shank 17 with a clamp 23, special or similar clamps for attaching the power cable to the tubing 3.

EC can be performed (see Fig. 10) in the form of angular reinforcement - with a lower axial channel 13 and an upper lateral (radial) channel 14, which opens (upper position is a solid line) or closes (lower position is a dashed line) with a shutter 15. The shutter 15, for example, in the form of a ball, is pressed against the saddle 16 by moving the rod 32 of the actuator 11, rigidly or not rigidly connected with the shutter 15. The position of the rod 32 (and hence the shutter 15) is regulated through the actuator 11 through the electric wire 28 passing through the upper flange 25. This upper fl Anets 25 is intended for connection to the corresponding flange of either a submersible electric motor or a submersible telemetry unit (not shown in FIG. 10). The housing of the actuator 11 can be combined with the housing of the EC 9 or it can be connected to the housing of the EC 9 either by welding, or by a threaded connection, or by means of a flange connection (not shown in FIG. 10). In the lower part of the EC 9 housing, there may also be a flange 25 with holes for fasteners or threads (not shown in Fig. 8) for attaching the shank 17 or pipe string 2 to the coupling. In this case, the configuration of the elements forming the hydraulic channel for passing the formation fluid of the lower object , perform in such a way as to maximize the throughput of the valve at a given differential and dimensions limited by the diameter of the production casing 1. For example, the confuser angle of the inlet channel 13 is 40 °, and the diffuser angle (absent in FIG. 10) is 10 °.

To accumulate enough power to drive the shutter, a small electric current (used for power supply) can charge a capacitor located in the housing of the PED 7, or in the power supply 10, or 11, or 9, for the required (sufficient) time.

In the general case, EC 9 can be made not only in the form of a valve, but also in the form of a valve (the shutter is interspersed perpendicular to the flow) or a valve (locking or regulating element in the form of a body of revolution or its part - a ball, cone, cylinder), or a shutter (the locking or regulating element is in the form of a disk), or a hose valve (closing or regulating the flow is carried out by squeezing an elastic hose).

EC 9 with IM 11 and a measuring transducer 12 can be installed in the axial central pocket of the nipple 33 (Fig. 11) inside the shank 17 or in the eccentric pocket of the coupling 34 (Fig. 12) outside the shank 17, or in the eccentric pocket of a cylindrical or oval borehole chamber 36 (Fig. 13) or couplings with an eccentric inner pocket located under the SEM 7. Moreover, they (nipple 33, coupling 34, borehole chamber 36) are elements (components, modules) of the shank 17 and are connected to the pipe string by a threaded connection 35. Moreover, when Assumption electric wire 28 within the shank 17, it may be unarmored, while its location outside (FIG. 12), the cable 22 is armored.

The shutter 15 can be located both above the saddle 16 (see figure 10), and under the saddle 16 (see figure 14). In this embodiment, it can also be connected or not connected to the stem 32. In the latter case, if the shutter 15 is not connected to the stem 32 rigidly, then under the shutter 15 a restriction grill 37 is installed with holes for passing the fluid, the area of which is larger than the channel area in the seat 16, and that in turn is larger than the throttling area formed between the valve 15 and the seat 16. That is, the valve in this case is balanced - the valve is under the influence of hydrodynamic forces.

EC can be performed (see Fig. 15) with a cone-shaped shutter 15 (the lower position is a solid line) in the closed, position pressed against the seat 16 by the rod 32. When the shutter 15 is open (the dashed line is the upper position), the input channel 13 is in fluid communication with output channel 14. Here (see Fig. 15), the actuator body 11 can be connected to the valve body 9 by a threaded connection 35, and in the lower part of the EC 9 body there is a flange 25 with holes for fasteners for connection to the adapter 26 (in Fig. 15 not shown).

EC can be performed (see Fig. 16) with a cylindrical shutter 15 (the lower and upper position is a dashed line), moving which change the passage section of the seat 16, made either in the form of slits (slots) along the axis of the valve, or from several holes ( as in Fig. 16), distributed along the length of the cylindrical sealing surface, located at an angle to prevent the negative impact of the jet of formation fluid on the production string or casing. Here (see FIG. 16), the actuator housing 11 can be connected to the housing of the EC 9 with a flange connection 25, and in the lower part of the housing of the EC 9 is a flange 25 for attaching either to the shank 17 through the adapter 26, or to the sealing unit 18.

The EC can be equipped (see Fig. 17) with measuring transducers 12, in particular, a pressure sensor 38 at the input Р1 (in channel 13), a pressure sensor 39 at the output Р2 (in channel 14), and a differential pressure sensor 40 Δ Р (Р1- P2) on the saddle (fitting) 16, the temperature sensor T 41. In this case, the pressure from under the saddle 16 is transmitted to the sensors 38 and 40 through the impulse tube 42, and the measured parameters in the form of an electrical signal are transmitted via electric wire 28 or 22 to the surface to the control station (not shown in FIG. 14). The system provides measurement and transmission to the controller of the control station of the parameter value through several (for example, five) measurement channels (after converting the controlled parameters into an electric information frequency-manipulated signal). The transmission of signals from IP 12 can be carried out in the same way as from the BPT (via a serial exchange protocol), while telemetry information is transmitted through the stator winding of the PED 7 through an immersion cable 8 and then (in Fig. Not shown) through a secondary winding an oil-raising transformer (TMPN) through the high-voltage BV unit to the input of the telemetry interface unit (BST). The same circuit supplies power from the BST to the BPT. Then, the received signal is processed in the BST and transmitted to the controller of the control station for output to the display panel and transmitting information to the oil production process control system.

If EC 9 is located directly (without a FFT) under the PEM, then only the end termination in the lower part of the PEM commercially available at the Borets factory changes, where the stator winding of the PED is connected to a "star". To improve the accuracy of measuring the parameters of the flow of formation fluid of the lower object, a phase separator may be installed in front of the measuring transducer, for example, a separator for preliminary gas removal from the hydraulic channel in which the flow rate of the formation fluid is measured.

The electric valve can be (see Fig. 18) combined with an electromechanical single-barrel packer 4. At the same time, this packer is controlled by electric current supplied from PED 7 or BPT 10 (in the figure it is combined with electric actuator 11 and EC 9), or from an additional armored cable 22 connected to the power cable, or from an individual power cable coming from the surface from the control station. In this case, an additional section of column 2 or liner 17 can be lowered under the packer.

The layout (see Fig. 19) with a pipe string 2 can be equipped with an additional packer 44. In this case, the upper packer 4 is used to separate the upper P ₁ and middle P ₂ objects, and the additional lower packer 44 is used to separate the lower P ₃ and middle P ₂ objects. The layout is also equipped with a disconnector-connector 19, with an EN 5, with an input module 6 and with a casing 43, with a PED 7, with a BPT 10, with a power cable 8 and EC 9. The output 14 of the EC 9 is hydraulically connected to the input module 6 of the EN 5, and its inlet 13 is hydraulically connected through the shank 17 to the space under the packer 4 and 44. In this case, the EC controls (cuts off or passes through itself) the fluid flow of simultaneously lower P ₃ and middle P ₂ objects. If the EN 5 is located below the upper production facility P ₁ , and the flow of reservoir fluid from the lower facility P ₂ or the middle and lower objects (P ₂ and P ₃ ) is insufficient for cooling PEM 7, then the well installation is equipped with a casing 43. In the interpacker space, a receiving a device 45 for the average object P ₂ , made in the form of either a borehole chamber with a valve or a bypass valve. In this case, the lower section (part) of the arrangement with the pipe string 2 and with the disconnector-connector 19 is connected to the upper section (part) of the layout with the shank 17 (from the pipe string 3) using a sealing assembly 18, mechanically connected (via the shank 17) or electric valve, or to the casing 43. In the latter case a seal provide additional input 13 EC 9 with the pipe string 2 or shank 17 (additional shank - conduit) inside the pipe string 2 for fluid communication with the object or P ₂ P ₃ or a one temporarily with both objects (P ₂ and P _3). In the latter case, the ratio (limitation) of flow rates between

P ₂ and P ₃ can be set with fittings of the required diameter, located respectively in the receiving device 45 and 20, for example, in interchangeable valves installed in the borehole chambers. The parameters of the reservoir fluid flow passing through the EC 9 can be measured using a measuring transducer 12 installed inside the EC 9 or directly below the EC 9 in front of the input channel 13 (as shown in Fig. 19) or in any part of the hydraulic channel. For example, a measuring transducer 12 is installed over each of the objects, and for transmitting the measured parameters and for power supply, an additional cable 22 is supplied along the shank 17 (an additional shank in the form of a pipe string of a smaller diameter or a string of rods). In one case, the input 13 of the EC can be hydraulically connected through the shank 17 with the middle object P ₂ (through the receiving device 46, made, for example, in the form of a cross-flow coupling (see Fig. 20) with a radial channel 47, and through eccentric isolated from them longitudinal channels 49 to the input module 6 EN 5 constantly receives reservoir fluid from the lower object P ₃ together with the reservoir fluid from the upper object P ₁ ). In another case, the input 13 of the EC can be hydraulically connected to the lower object P ₃ (through the receiving device 20, made in the form of a coupling of an angular radial-axial flow with a radial channel 47 (as well as with a cross-flow coupling 46) and hydraulically connected to it through channel 48 axial or eccentric (without eccentric longitudinal channels, and reservoir fluid 6 from the middle object P _{2 is} constantly supplied to the input module 6 of EN 5 together with the reservoir fluid from the upper object P ₁ ). In these cases, the liner 17 descends with the centralizer (for example, in the form of an elastic lamp or coupling) or without it and is hermetically connected either with a cross-flow coupling or with an angular or radial-axial flow coupling with a telescopic connection 54 with sealing cuffs 55.

The downhole installation can also be additionally equipped with a device 24 for exposure to a working agent or for jamming a lower object with a closed EC 9, located under it and above a packer 4 on a liner 17 or on a pipe string 2. A receiving device 20 for receiving fluid from the lower pipe into the pipe string an object located under the packer 44 on the pipe string 2. A receiving device 45 or 46 for receiving fluid from the (middle) pipe into the pipe string, located between the packers 4 and 44 on the pipe string 2, with a casing 43 attached to the electric pipe 5 or to the pipe RUB 3 through a special clutch 50, the adapter 51 from the casing to the tubing string with a packer 4 centralizer 52 EC centering shank 9 or 17 within the housing 43, the connector-disconnector 19, the sealing unit 18.

Option 2. Installation (Fig.20-25) for the operation of one - lower (P ₂ ) or two (upper and lower) production facilities (P ₁ and P ₂ ) of the well includes a pipe string 2 or a string lowered into the production string 1 pipes, consisting of the lower section of the pipe string 2 and the upper section of the pipe string 3. The pipe string 2 is equipped with a packer 4 mounted under the upper object P ₁ (between objects P ₁ and P ₂ ) without or with a pipe disconnector (or telescopic connection) 19. The layout also includes an EN 5, equipped with an input module 6 and a casing 43, PED 7 with or without BPT 10, power cable 8 and EC 9. EC 9, in the form of an electromagnetic (EC) or electromechanical (EC) valve, is electrically connected to either PED 7, or BPT 10, or to power cable 8, or with an additional cable 22 or 28, and mechanically the EC 9 is connected either to the PED 7, or to the BPT 10, or to the casing 43, and the output 14 of the EC is hydraulically connected to the input module 6 of EN 5, and its input 13 is hydraulically connected to the annulus above packer 4, while EC 9 is made with the possibility of controlled cutting or passing through a fluid flow of the upper volume that P _1. The arrangement can additionally be equipped with a cross-flow coupling (MPT) 46 located under the EC 9 and connected rigidly or non-rigidly to the casing 43 from above. Bottom MPT can be mechanically connected either to the shank 17 through the adapter 51, forming with the column 3 the upper section of the layout. In this case, the sealing unit 18 is installed hermetically, but not rigidly, in the disconnector-connector 19, then through the pipe string 2 with its receiving system 20. The receiving system 20 can be made in the form of a funnel, nipple or in the form of several or one borehole chamber 20. Directly under the disconnector-connector 19 or above the sealing unit 18, a centralizer 21 can be installed (not shown in FIGS. 20 and 25). In addition, a centralizer 52 can be installed above or below EC 9 to center its location inside the casing 43. In another case, the MPT 46 is connected to the pipe string 2 rigidly and connected by the packer 4. The MPT 46 is made with at least one radial channel 47 hydraulically connected to its non-through axial or eccentric channel 48, connected to input 13 of EC 9 for controlled passage of formation fluid of the upper object P ₁ and at least one longitudinal through eccentric channel 49 hydraulically connected to input module 6 of EN 5 for P Standing pass formation fluid lowermost object _P2 (through the receiver 20 into the inner cavity of the pipe string 2, and a packer 4 disconnector-connector 19, sealing assembly 18, the shank 17, the adapter 51 into the internal cavity of the housing 43 and further through the eccentric longitudinal channels 49 cross-flow couplings 46 to input module 6 AH 5). For jamming the lower object P ₂ and for acting on it with a working agent, the installation can also be equipped with a device 24 on the liner 17 or on the pipe string 2. The device 24 can be made, for example, in the form of a bypass valve or a check valve installed in the borehole chamber . The inlet 13 of EC 9 is connected directly to MPT 46 or through an intermediate pipeline (intermediate pipe) 31. This connection can be made in the form of either (see FIG. 21) telescopic 54 with sealing sealing cuffs 55, or (see FIG. 22) threaded connection 35, or (see Fig.23) flange connection 25. Moreover, the MTT 46 (see Fig.21-23) may have a wear-resistant liner 56. In addition to the casing 43, EC 9 can be mechanically additionally connected, but not rigidly either with PED 7, or with BPT 10. The casing 43 from above can be rigidly connected to the pipe string 3 using Iu special coupling 50 for attaching the casing 43 to the tubing string 3 with a cable entry 53 (to pass power cable 8). From below, the casing 43 is connected rigidly or not rigidly (through the pipe string 2) to the packer 4.

In another design (see Fig. 24), the EC 9 can be attached to the casing 43 with its own housing or (see Fig. 25) using additional connecting pipes (clips) 31, while there is only an electrical connection (from the upper end or from the side) actuator 11 EK 9 with PED 7 or with BPT 10 through an armored cable 22 or electric wire 28. The fluid flow from the upper object P ₁ can be supplied to input module 6 of EN 5 through input 13 and output 14 of EC 9, and can be blocked using it . In this case, the fluid flow from the lower object P ₂ enters the intake 6 of EN 5 continuously through the column 2 and the inner cavity of the casing 43.

At the same time, EC 9 (see Fig. 24) is made with an input 57 in the form of a radial (without or with a slope) channel, which can be blocked by a shutter 15 to regulate the flow of formation fluid from the upper object. At the same time, the reservoir fluid from the lower object is constantly supplied to the ЭН 5 through the eccentric through longitudinal channel 58 in the EC 9 and through the inner cavity of the casing 43.

Option 3. The downhole installation (see Fig.26-27) is designed to operate either one lower (P ₂ ), or one upper P ₁ , or simultaneously two (lower and upper) production facilities (P ₂ and P ₁ ).

The installation comprises a pipe string 2, hermetically, rigidly or not rigidly connected to the packer 4, for separation of the lower P ₂ and the upper objects P ₁ equipped with a disconnector-connector 19, EN 5, equipped with an input module 6 and a casing 43, PED 7 with BPT 10 or without it, the power cable 8 and EC 9. EC 9 can be made in the form of either a multi-position solenoid valve or an electromechanical valve. EC 9 is connected electrically either to PED 7, or to BPT 10, or to power cable 8, or to additional cable 22. Mechanically, EC 9 is connected either to PED 7, or to BPT 10, or to housing 43. Moreover, output 14 of EC 9 hydraulically connected to the input module 6 EN 5. EC 9 is made (at least) with two insulated inputs, one of which 13 is hydraulically connected to the annulus under the packer 4, and the other (additional input) 57 to the overpacker space. EC 9 provides the possibility of controlled cutting or passing through a fluid flow through the input 13 of the lower object P ₂ , and through the input 57 of the upper object P ₁ . That is, in this case, it is possible to simultaneously regulate the flow of reservoir fluid from both the lower P ₂ and the upper P ₁ objects with predetermined flow rates. An additional inlet of valve 57 may be connected to the space above the packer to ensure formation fluid flows from the upper object to the input module 6 of ЭН 5 through a receiving device 46, made in the form of a cross-flow coupling with a radial channel 47 and axially or eccentric hydraulically connected to it through a channel 48 through which the reservoir fluid of the upper object can flow. In this case, the fluid enters directly into EC 9 or through an intermediate pipe 31 (adapter) 31 to the input channel 57 EC 9 and when the shutter 15 EC 9 is open, through the output channel 14 EC 9 to the input module 6 EN 5, where it is mixed with the lower formation fluid operational facility P ₂ .

Here, the layout can also be two- and single-section.

In the first case, the installation includes a pipe string 2 lowered into the production casing 1, equipped with a packer 4 installed under the upper object P ₁ (between objects P ₁ and P ₂ ). The pipe string 2 is equipped with an EN 5 with an input module 6, a PED 7 with a power cable 8, a BPT 10 and an EC 9, with an actuator 11 and without or with a measuring transducer 12 combined with an EC or located next to EC 9. In addition, the installation has the casing 43 is mechanically connected in the lower part with EC 9 with a radial inlet 57 to ensure the formation fluid from the upper object P ₁ to the input module 6 of EN 5 inside the casing 43 through EC 9, with which this flow can be either closed or torn off specified flow rate. To supply the drive 11 to it from the BPT 10 or from the PED 7, electricity is suitable for the electric wire 28 located inside the casing 43. Moreover, the casing 43 in this case is attached to the pipe string 2 in the upper part to transfer the axial load to the packer 4. From the bottom of the EC 9 is rigidly attached to the packer section without or with an adapter 51. In this case, fluids from the lower object also pass through EC 9 without or with the possibility of their overlapping. To account for the produced formation fluid from the upper object P ₁ forward by input 57 to EC 9, or a measuring transducer 12 can be installed in it.

The installation (see Fig.28-29) includes a pipe string lowered into the production string 1, consisting of a lower section with a pipe string 2 and an upper section with a pipe string 3. Pipe string 2 with a disconnector-connector 19 of the column (or telescopic connection 19) in the upper part it is connected to the sealing unit 18 on the shank 17 located under the EC 9 and under the casing 43, which in this case can be attached to the EN 5. A formation fluid of the upper object can flow through the radial channel 57 of the EC 9. Moreover, it enters directly into the EC 9 through the input channel 13, and when the shutter 15 EC 9 is open, through the output channel 14 the EC 9 to the input module 6 EN 5, where it can be mixed with the reservoir fluid of the lower production facility. The formation fluid can also come with a predetermined flow rate from the lower production facility through the receiving device 20 into the internal cavity of the pipe string 2 first, then of the packer 4, disconnector - connector 19, sealing assembly 18, liner 17, adapter 51. Then through an eccentric through longitudinal channel 58 in EC 9 and already after it into the inner cavity of the casing 43, and then to the input module 6 EN 5.

In this embodiment, EC 9 (see Fig. 26) is made with an input radial channel 57, which can be closed or opened with a shutter 15 of the saddle 16 located in the upper part, for the inflow of formation fluid from the upper object P ₁ to receive electric power 5 through the EC 9 and through the inner cavity of the casing 43. In this case, the reservoir fluid from the lower object P ₂ can also be regulated by the EC 9 using a shutter 15, which can separate the input channel 13 from the output channel 14, moving to the lower position, while stopping the flow of reservoir fluid to receive EN 5 through vnu the upper cavity of the casing 43. In the third middle position (position) of the shutter 15, the formation fluid simultaneously flows from the upper P ₁ and lower P ₂ objects

Similarly to the last option, there can be many other EC 9 versions in the form of distribution-mixing valves (mixing valve) for the controlled flow of formation fluid from the upper P ₁ and lower P ₂ objects with specified flow rates.

Fig. 27 shows an installation example when two ECs are placed (freely, arbitrarily) inside the casing, one of which is hydraulically connected with its inlet to the space behind the casing 43 to control the flow rate of the upper object, and the second additional EC 60 is connected to the actuator 61, electrically connected to the PED 7 or to the BPT 10 in parallel with the IM 11 EC 9. The input of the EC 60 through the connecting pipe 31 or the shank 17 is hydraulically connected to the object located under the packer 4.

EC 9 can be performed by an electromechanical controlled system of a step-by-step electric drive (electric motor) 11, leading to a change in the position of the shutter 15 and, thereby, either completely blocking the fluid flow from the objects or opening the flow of formation fluid only from the lower object П ₂ with a given flow rate, either opening the inflow of formation fluid only from the upper object P ₁ with a given flow rate, or opening the inflow of reservoir fluid simultaneously from the upper object with a given flow rate and from the lower object with a given flow rate. Moreover, the flow rate is set either by pre-installing the fittings in the corresponding channel EC 9, or by changing the throughput section of the corresponding channels using the valve shutter.

Option 4. The downhole installation (Fig.28-30) is made with EC 9 or with two EC 9 and 60, a middle double-barrel mechanical packer 64 or combined with a double-barrel electromechanical packer 64.

The downhole installation (Fig. 28) is made with a parallel arrangement of the column (liner) 17 and an additional eccentric (parallel) column 62 without or with an additional receiving device 63 with one multiposition (three-position) EC 9 with two eccentric inputs. EC 9 is combined with 64 double-barrel packer (dual string packer - a packer for two parallel pipe columns). Moreover, in one of the shafts of the packer 64, the pipe string 62 may or may not be present, through it the formation fluid from object P ₁ enters the first channel of the input of EC 9. In another (eccentric, parallel) pipe string 3, hydraulically connected through a sealing assembly 18 with a disconnector-connector 19, reservoir fluid from object P ₂ located under the packer 4 enters another inlet channel EC 9, for example, the axial inlet channel 13 is located along the center of EC 9 and allows you to adjust the flow of reservoir fluid from the lower object P ₂ , which is separated from the object P _{1 by the} packer 4. The object P ₁ is separated from the input module 6 by EN 5 using an additional packer 64. An additional object P ₃ can be located above the packer 64 hydraulically connected to the input module 6 EN 5. Packer 64 can be made in the electromechanical design. The control of the electromechanical packer 64 and / or EC 9 is carried out by an electric current supplying from the PED 7 or BPT 10 (in the drawing it is combined with an electric drive 11 and EC 9), or from an additional armored cable 22 connected to the power cable through an electric distribution device 65, or cable 22 comes from the surface from the control station.

The downhole installation (Fig. 29) is made with EC 9 and an additional EC 60 (with MI 61), each of which is connected to a separate barrel of the double-barrel packer 64 for hydraulic communication with the corresponding operational objects. From below, through one trunk of the packer, to which a section of column 62 can be connected, formation fluid from the object enters the input of additional EC 60

P ₁ . Through another barrel of the packer with an attached liner 17 connected through a sealing assembly 18 and a disconnector-connector with a column 2 and a hydraulically connected object P ₂ located under the packer 4. Above the packer 64 there may be an additional production object P ₃ , the reservoir fluid of which flows directly to input module 6 AH 5.

The downhole installation (Fig. 30) is made with an EC 9 and an additional EC 60, each of which is electrically connected to a PED 7 or BPT 10, and it is mechanically connected to an adapter sleeve 66 (or flange) fixed from below to the casing 43. Casing 43 from above can be connected to a sleeve 50 for attaching a casing located on the pipe string 3 and transmitting axial load from packer 4 (in the absence of disconnector-connector 19) or packer 64 (if it is mechanical). The coupling 50 has a cable entry for the passage of the power cable 8 and / or an additional cable 22. An additional cable can also pass outside the casing to supply energy to the EC 9 or EC 60 or to the electromechanical packer 64 Double-barrel packer 64 allows the formation fluid to pass through one barrel of the packer object P ₁ , and through another barrel of the packer with a liner 17 connected to the column 2, to pass formation fluid from the object P ₂ located under the packer 4. Above the packer 64 there may be an additional operational object P ₃ , reservoir flui for which it enters the input module 6 of EN 5 through several or one hole 67 without or with a fitting 68 of a given diameter (to limit the flow of fluid from the object P ₃ ) in the casing 43.

Listed below are some of the purposes of the invention.

A. Installation for simultaneous-separate production (ORD) of oil works as follows.

The reservoir fluid (see FIG. 1) from the upper production facility P ₁ enters continuously to the input module 6 EN 5, and the formation fluid from the lower production facility P ₁ can flow to the input module 6 EN 5 continuously or periodically with a given flow rate due to flow control this object using EC 9 opening or closing the shutter for the electromagnetic valve or opening the bore of the hydraulic channel with a given degree for the electromechanical valve.

The reservoir fluid (see FIG. 20) from the lower production facility P ₂ enters continuously to the input module 6 EN 5, and the reservoir fluid from the upper production facility P ₁ can flow to the input module 6 EN 5 continuously or periodically with a given flow rate due to flow control this object using EC 9 opening or closing the shutter for the electromagnetic valve or opening the bore of the hydraulic channel with a given degree for the electromechanical valve.

The reservoir fluid (see FIG. 26) from each production facility P ₁ and P _{2 is} controlled by EC 9 by changing the position of the solenoid valve shutter or by turning the disk shutter of the electromechanical valve, opening with a predetermined flow rate or completely closing the inlet for the formation fluid flow of the corresponding formation. A similar opportunity can be provided using two EC 9 and 60 (see Fig.26).

The formation fluid (see FIG. 28) from two production facilities P ₁ and P _{2 is} regulated by EC 9, opening with a given flow rate or completely closing the inlet for the formation fluid flow of the corresponding formation. A similar opportunity can be provided using two EC 9 and 60 (see Fig.29 and 30). In this case, formation fluid can be selected from the upper (third) production facility P ₃ without passing its fluid through the EC or with its passage, for example, using the installation at the same time in 4 and 2 or 3 variants.

B. Installation during optimization of the technological regime of the main operational facility works as follows.

If the performance of the electric power 5 is greater than the optimal flow rate of the main operational facility, an auxiliary facility is connected continuously or periodically with a given flow rate, which can be either the lower one (see Fig. 1, Fig. 26, Fig. 28) under the packer, either the top one (see FIG. 20 and FIG. 26) above the packer, or the middle object located between the packers (see FIG. 28).

If the performance of the electric power 5 is less than the optimal flow rate of the main operational facility, the auxiliary facility is disconnected using EC 9.

In particular, when using the installation according to the first embodiment (Fig. 1), if it is required to maintain optimal bottom-hole pressure on the lower object, EC 9 acts as a pressure regulator “to itself”, and if it is required to maintain a constant (optimal) pressure on the upper object, then EC 9 performs the function of a pressure regulator "to yourself."

B. Installation during the development of the main operational facility operates as follows.

If the bottom-hole zone of the main production facility has been colmated after drilling or killing the well, for the time of its development, an auxiliary object is connected continuously or periodically with a predetermined flow rate, which can be either lower (see Fig. 1 or Fig. 26 or Fig. 28 ) under the packer, either the top one (see FIG. 20 and FIG. 26) above the packer, or the middle object located between the packers (FIG. 28).

D. Installation, eliminating the accumulation of stagnant water at the lower object works as follows.

If the flow rate from the lower object is insufficient for water removal - below the critical one to prevent accumulation of water at the level of the lower layer (thereby increasing its flow rate), a liner with a diameter (see, for example, Fig. 18) is lowered to reach limiting (critical) fluid flow rate.

D. Installation in the study of the main operational facility works as follows.

In the case of a study of the main operational facility in a regime with a flow rate less than the minimum possible capacity of a run-down EN 5 during continuous operation, an auxiliary facility, which can be either lower, can be connected continuously or periodically with a given flow rate (see Fig. 1 or FIG. 26 or FIG. 28) below the packer, either the top (see FIG. 20 and FIG. 26) above the packer, or the middle object located between the packers (FIG. 28).

E. Installation while ensuring reliable operation of the pump installation operates as follows.

Connect the auxiliary object continuously or periodically with a flow rate sufficient to ensure reliable operation of the EN 5 in continuous mode in the following cases:

- if the reservoir fluid of the main production facility contains a high concentration of (complicating) components that adversely affect the reliability of EN 5,

- if the performance of EN 5 is greater than the flow rate of the main operational facility,

- if the performance of the electric power supply unit 5 of the minimum size is greater than the production rate of the production facility.

E. Installation while ensuring reliable operation of the submersible motor operates as follows.

The auxiliary object is connected continuously or periodically with a flow rate sufficient to ensure reliable operation of the PED 7, with an increase in the temperature of the PED above the permissible value. That is, EC 9 in this case performs the function of a temperature controller of the SEM.

Specific examples for implementing this method are given below.

Example 1. In the well No. 1111 two formations were discovered with the following characteristics:

lower - at a depth of 2500 meters with a reservoir pressure of 19 MPa, a productivity coefficient of 25 m ³ / day / MPa, and a water cut of 96%;

upper - at a depth of 2430 meters with a reservoir pressure of 16 MPa, a productivity coefficient of 5 m ³ / day / MPa, and a water cut of 20%. Moreover, the potential productivity coefficient according to hydrodynamic studies (HPC) was twice as high, but it was not achieved due to incomplete development (operating power was only 30%) of the upper layer (insufficient depression) due to the activity of the lower layer

Initially, during the joint operation of formations using the ESP 5-200, the well production rate was 195 m ³ / day, and the oil production rate 23 m ³ / day.

It was decided to use the proposed method with installation according to option 1 for the full development of the upper formation (decolmatization of its bottomhole zone), for this, with the help of an electromagnetic valve, the depression on the upper formation was gradually increased from 4.1 MPa to 10 MPa. In this case, the opening of the valve was carried out in order to prevent a feed failure. In the process of development, the periods of connection of the lower object decreased, which indicated an increase in the productivity coefficient of the upper layer. After stabilization of the regime (according to HPC), the productivity coefficient of the upper layer was 1 m ³ / day / MPa, and its water cut was reduced to 15%. Moreover, its flow rate was 86 m ³ / day for liquid, and 68 m ³ / day for oil. The total flow rate of the two layers was 195 m ³ / day for liquid and 73 m ³ / day for oil. That is, with the constant size of the ESP and the constant fluid production, it was possible to increase the oil production rate by more than three times.

It should be noted that to exploit only the upper layer while isolating the lower layer (and this could not be done due to insufficient development of the lower layer) in continuous operation would not have been possible due to:

- the danger of failure of the pump in periodic operation during the development of the reservoir due to an increase in the frequency of impact of shock starting overloads;

- inconsistencies in the productive characteristics of the formation (even after its full development) with the performance of the electric centrifugal pump, and with a smaller pump size, the probability of underutilization of the well potential increases.

Example 2. In the well No. 2222 revealed two layers with the following characteristics:

lower - at a depth of 2600 meters with a reservoir pressure of 20 MPa, a productivity coefficient of 4 m ³ / day / MPa, and a water cut of 15%;

the upper one - at a depth of 2500 meters with a reservoir pressure of 19 MPa, a productivity coefficient of 22 m ³ / day / MPa, and a water cut of 95%.

Initially, during the joint operation of reservoirs using the ESP 5-200, the well production rate was 199 m ³ / day, and the oil production rate was 37 m ³ / day.

After using the proposed method with installation according to option 2 and an electromagnetic valve that opens and closes the flow of formation fluid from the upper formation due to the differentiated effect of greater depression on the lower less flooded formation with constant flow rate, it was possible to increase oil production up to 45 m ³ / day (more than 50%).

Example 3. In a curved well No. 3333, an oil-saturated formation was discovered with the following characteristics: depth 2600 meters; reservoir pressure 17.3 MPa; productivity coefficient 1.2 m ³ / day / MPa; water content of 15%.

The use of a sucker rod pump due to the curvature of this well is impossible, and for continuous formation operation at a design bottomhole pressure of 9 MPa with a fluid flow rate of 10 m ³ / day, there are no standard sizes of ESPs with the required performance. Periodic operation of the ESP reduces the reliability of the installation (low MTBF, short well overhaul period). And with an increase in depression, the likelihood of the formation of a water cone increases due to the underlying bottom water of the given layer. Therefore, the manufacturers of ESPs do not recommend their periodic operation and do not support warranty obligations for submersible equipment.

It was decided, as an auxiliary object, to open the interval in the water-saturated part of the reservoir to ensure the continuous operation of ESP5-15, as well as to prevent the formation of a water cone. Then, the installation according to option 3 of the invention was launched into the well with the possibility of adjusting both the upper and lower objects. With stable operation of the installation at a given design mode, the well production rate was 15 m ³ / day, including 10 m ³ / day from the main object, which used the oil-saturated interval of the reservoir, and 5 m ³ / day from the auxiliary object, which was used water saturated interval of the reservoir, separated from the main object by the packer. In this case, the oil flow rate amounted to 8.5 m ³ / day.

After carrying out its hydraulic fracturing, Form P ₁ , the parameters of the formation fluid began to go beyond the limits of applicability of the ESP produced even for wear-corrosion-heat-resistant design (ICT). In particular, as can be seen from the table, this deviation was observed in the following parameters: the temperature of the working medium (formation fluid), the concentration of solid particles in it, its acidity (Ph value) and the concentration of hydrogen sulfide, and also the free gas content in the design mode during the descent of the ESP to the bottom of the well.

The connection of the flooded formation P ₂ and the use of UETSNIKT5-20 / 35 with the layout according to the invention made it possible to shift the parameters of the working medium (a mixture of reservoir fluids) into the zone of conditions acceptable during the operation of the ESP, which increased the reliability of the installation.

Options Units rev. Pump The objects Total ESPNICT N ₁ P ₂ Fluid temperature ° C 120 123 one hundred 118 The concentration of solids in the reservoir fluid mg / l 500 550 one hundred 460 Ph indicator 5 4.5 7.2 5.04 Hydrogen sulfide concentration % 0.125 0.13 0.01 0.106 Gas content % 25% thirty% 0.01 0.242 Water cut % - 69% 99% 75% Debit before transfer m3 / day 28 28 28 Debit after transfer m3 / day 35 28 7 35

In addition, the change in water cut from 69% (at which the maximum viscosity of the oil-water emulsion was observed) to water cut 75%, at which phase inversion has already occurred, while the viscosity of the reservoir fluid has decreased by an order of magnitude.

If necessary, by temporarily disabling formation P ₂ , it is possible to accurately determine the characteristics of formation P ₁ (for example, water cut in its formation fluid).

Similar examples can be given for wells operated by ESP under difficult conditions, for example, wells that are subject to scaling, paraffin deposits, hydrated deposits, etc.

Example 4

Three layers with the following characteristics were discovered in well No. 4444:

upper - at a depth of 2500 meters with a reservoir pressure of 19 MPa, a productivity coefficient of 3 m ³ / day / MPa, a water cut of 30%;

medium - at a depth of 2600 meters with reservoir pressure of 22 MPa, productivity coefficient of 19 m ³ / day / MPa, water cut of 95%;

lower - at a depth of 2700 meters with a reservoir pressure of 21.5 MPa, a productivity coefficient of 4 m ³ / day / MPa, and a water cut of 10%.

Initially, during the joint operation of reservoirs using the ESP 5-200, the flow rate of the well was 198 m ³ / day, and the oil flow rate was 45 m ³ / day.

After using the proposed method with installation according to option 4 and an electromagnetic valve that regulates the flow of formation fluid from the middle (restricting it) formation and lower (forcing it) due to the differentiated effect of greater depression on the lower less flooded formation with constant flow rate, it was possible to increase oil production up to 64 m ³ / day (by 41%).

Other possibilities of using the proposed method and the operation of various options for downhole installations are clear from the presented graphic materials.

Claims (32)

1. A method of producing fluid from the strata of one well with an electric drive pump, comprising lowering into the well an arrangement consisting of a pipe string equipped with at least one packer for separating objects with or without a disconnector-connector, an electric drive pump with or without a casing input module, power cable, submersible motor without or with a submersible telemetry unit, a shank and at least one controlled electric valve with a shut-off element, the opening of which is controlled by fluid from at least one object passing through the valve to the upstream input module of the electric drive pump, characterized in that the electric valve of electromagnetic or electromechanical action is electrically connected either to a submersible electric motor or to a submersible telemetry unit, or to a cable, and also it is connected mechanically, rigidly or not rigidly, either with a submersible electric motor, or with a submersible telemetry unit, or with a casing, or with a shank, and the electric valve is located they bend over the packer, while performing an electric valve either with one inlet hydraulically connected to the space under the packer or above the packer, or with two insulated inlets, one of which is hydraulically connected to the space under the packer, and the other with the space above the packer, or layout equipped with two electric valves, one of which is hydraulically connected to the space below the packer, and the other to the space above the packer, while providing the possibility of controlled both cutting and passing through fluid flow for the lower or upper object, or simultaneously for the lower and upper objects without or with the measurement of flow parameters. 2. The method according to claim 1, characterized in that the electric valve is mechanically connected either to a submersible electric motor at the end, or to a submersible telemetry unit at the end or to the side, or with a casing inside or in the form of an element thereof, or with a shank inside or outside, or in the form of its element, or with a pipe string inside or outside, or in the form of its element, moreover, the electric valve is connected either rigidly, through one or more connections - flanged, threaded, welded, bell-shaped, adhesive, by soldering, embossing, riveting, or not rigid, with fixation if no, via one or more compounds - telescopic, clamps, nozzles, wire, flexible elements in the landing nipple or pocket borehole chamber. 3. The method according to claim 1, characterized in that the degree of opening of the shutter of the electric valve from the surface of the well is controlled by supplying direct or alternating electric current through a power or additional cable, while the shutter both separate and hydraulically communicate the input and output channels valve, respectively, to shut off or open the fluid flow from the object to the input module of the electric drive pump, while changing the flow rate of this object by opening the shutter of the electromagnetic valve for a given program, moreover, the electric valve is either in the form of an electromagnetic valve with an actuator, or in the form of an electromechanical valve with a drive, and either an electric centrifugal pump, or screw, or diaphragm is used as an electric drive pump, and it is placed either above the upper object or on its level, or below it in the last two cases, when the formation fluid flows through an electric valve insufficient to cool the submersible motor, the electric drive pump But equipped with a casing. 4. The method according to claim 1, characterized in that they close or open the shutter of the electric valve, respectively cutting off or passing through it a fluid stream from at least one object by supplying a control signal to the electric valve from the surface of the well through a communication channel, the quality of which is used either by a power cable, or an additional cable, or a pipe string, moreover, control is carried out on the basis of information about the measured values transmitted via the same or an additional communication channel, while The signal is fed through the electric circuit without or using a hydraulic actuator, and in the latter case, either the control signal is transmitted through the command medium from the automatic control system, or a force is applied through the control medium to the actuator or actuator to move the shutter to the desired position. 5. The method according to claim 1, characterized in that the objects are separated using a packer into the lower and upper production facilities, while using an electric valve control the flow of reservoir fluid from either the lower production facility, or from the upper production facility, or simultaneously from the lower and the upper production facilities, at the same time either carry out simultaneous and separate production of reservoir fluids from production facilities, regulating their flow rates, or ensure the operation of the electric drive pump at mode with maximum efficiency, or limit the flow rate of the object with fluids having a high value of water cut, or gas content, or temperature, or pressure, or the concentration of complicating components - sand, salt, asphalt-resin-paraffin deposits, corrosive components, and change the flow rate without or using additional control systems by throttling the flow at the wellhead, periodically turning the motor on and off, and adjusting the speed otorrhea submersible motor or by changing the frequency of the current using three-phase motor, or EMF signal conversion at application managed BLDC motor. 6. The method according to claim 1, characterized in that the objects are separated by the packer into the main operational object and the auxiliary object, and the layout is performed with the possibility of both isolation and communication through the electric valve of the auxiliary object with the input module of the electric drive pump, while connecting to operation auxiliary object, opening the shutter of the electric valve, either in the process of mastering the main operational object without or with its subsequent closure after full development and output to the specified techno The logical regime of the main operational facility, either during the study of the main operational facility in the technological mode with a flow rate lower than the lower permissible limit of the electric drive pump productivity, or when the bottomhole pressure at the main operational facility decreases below the permissible level, or when high-viscosity oil is extracted from the main facility with hydraulic transport less viscous fluids of the auxiliary object, or when exceeding the main operational object in the reservoir fluid permissible concentration of one or more complicating components - sand, salt, water-oil emulsion, asphalt-resin-paraffin deposits, gas, corrosive components, mixing them with the reservoir fluid of an auxiliary object with a lower concentration of these components, or when oil is extracted from a low-productive main operating facility at a technological mode less than the capacity of the electric motor pump of the minimum size, thereby preventing periodic operation of the pump and disruption of its supply, or gas cavitation, or overheating of the submersible electric motor, either during operation of the electric drive pump outside of its adjustment characteristic, or to prevent an unacceptable pressure drop at the level of the electric drive pump, or to prevent an unacceptable temperature rise of the submersible motor, using either control feedback by electrical safety valve based on measured parameters, or programmed control of electric shutter opening valve, or with an automatically opening shutter of the safety valve. 7. The method according to claim 1, characterized in that one or more parameters of the fluid flow is measured - flow rate, pressure, temperature, water cut, gas content using a measuring transducer installed either in the electric valve or outside it in a hydraulic channel with a stream fluid passing through it from the object, while the measuring transducer is connected to a submersible telemetry unit for further transmission to the surface via a power cable along with information measured in a submersible telemetry unit - d phenomenon and temperature, converting them into an electrical signal or into the frequency of electrical pulses, and they are connected either by an electric wire or using electromagnetic wireless telemetry devices, then, depending on these parameters and the measured parameters of measuring systems located on the surface of the well - fluid flow rate, water cut , buffer pressure, annular pressure, wellhead temperature of the recovered fluids, dynamic level, strength, voltage and current frequency change the flow rate, at least , one object, controlling an electric valve. 8. The method according to claim 1, characterized in that without measuring the parameters of the fluid flow passing from the object through the electric valve, flow rate, water cut, gas content of the fluid, they are determined by the recorded changes in one or more physical quantities of the produced fluid - density, viscosity, the concentration of trace elements, pressure or temperature at the level of the submersible telemetry unit, the differential pressure or temperature on the valve, or the dynamic level, while either open the shutter of the electric valve, providing continuous Noe traffic flow or close its gate, or open and close the solenoid valve in time. 9. The method according to claim 1, characterized in that the arrangement is divided into two sections - the lower and upper, lower the assembly section with the packer and the disconnector-connector above the packer on the process pipes, install the packer under the upper object, disconnect the process pipes from the disconnector - a connector located at the upper end of the lower assembly section, the process pipes are removed to the surface, then the upper assembly section is lowered with a sealing assembly located at its lower end, which is hermetically sealed but e is rigidly connected to the disconnector-connector of the lower section of the layout, the upper section of the layout being equipped with a sealing assembly, a shank, an electric valve with or without a measuring transducer, a submersible telemetry unit, a submersible electric motor with a power cable, an electric drive pump with an input module and with casing or without it, tubing. 10. The method according to claim 1, characterized in that the entire arrangement is lowered at a time, then the packer is installed under the upper object and reservoir fluids are extracted from at least one object, and the flow of reservoir fluids from another object is opened or blocked using controlled electric valve, and if there is a casing, it is connected from above to the pipe string above the electric drive pump, and from below either to the packer, while the electric valve is located inside the casing, or to the electric valve, while the electric valve they are electrically connected to a submersible telemetry unit or to a submersible motor with an electric wire passing inside the casing, and mechanically it is connected from above to the casing and below to the packer, and in the absence of a casing, the electric valve is connected from above to the submersible telemetry unit or to the submersible motor, and from below attached through the shank to the packer, while the packer is mechanical or electromechanical, and in the latter case, the electromechanical packer is either divided or combined with an electric valve Ahn, and set it by supplying electric signal from the surface. 11. The method according to claim 1, characterized in that it provides the possibility for two objects, both cutting off and skipping the fluid flow at a given flow rate while measuring or determining its parameters for at least one object, while either one electric the valve is performed with two inlets, each of which is hydraulically connected to the corresponding object, or the installation is equipped with two electric valves, each of which is hydraulically connected with its inlet to the corresponding object, the electric valve either placed on a casing, or combined with an electromechanical packer, double-barreled for eccentric pipe columns, and one of the columns with a lower sealing assembly is connected during descent with a disconnector-connector located above the packer mounted above the lower object. 12. The method according to claim 1, characterized in that they use an additional cable either to control the electric valve, or to power and transmit information from transducers installed inside or outside the electric valve, or to control the electromechanical packer, or to power and transmit information from measuring transducers of a submersible telemetry unit. 13. A downhole installation containing a pipe string equipped with a packer for separating the lower and upper objects with or without a disconnector-connector, an electric drive pump with or without a casing, equipped with an input module, a submersible motor with or without a submersible telemetry unit, a shank , a cable and an electric valve, characterized in that the electric valve of electromagnetic or electromechanical action is electrically connected either to a submersible electric motor or to a submersible telemetry unit and, either with the cable, or also it is connected mechanically or with a submersible electric motor, or with a submersible telemetry unit, or with a shank, the electric valve being located above the packer, its output is hydraulically connected to the input module of the electric drive pump, and its input is hydraulically connected with the space under the packer, while the electric valve is made with the possibility of both cutting and passing through the fluid flow of the lower object. 14. The downhole installation according to item 13, wherein the electric valve is mechanically connected on top with either a submersible motor or a submersible telemetry unit directly through a flange or threaded connection, or with a shank in the form of a pipe or hollow rod, or rod, or cable , or a load-bearing element, while the electric valve is electrically connected to the submersible motor or the immersion telemetry unit through an electric wire made either unarmored, in which case it passes inside If the shank is either in the form of an armored cable, in this case it is fixed either with clamps or clamps to the pipeline or the rod, or as an unattached cable, the electric valve being located either inside the shank and installed without or with fixation in the axial pocket of the nipple or the eccentric pocket of the borehole chamber, or in the annular clearance of the coupling, either outside the shank and installed in the eccentric pocket of the coupling or attached to the shank with clamps, or it is made as an integral element of the shank, on which a packer, a receiving device for receiving fluid from a lower object into the pipe string, located under the packer on the pipe string, this device being made in the form of a nipple or radial flow coupling, or a cross-flow coupling, or a valve in the borehole chamber, with an additional lower packer installed above an additional lower object, a receiving device for entering the fluid pipe string from an object located between the packers on the pipe string, this device being made in the form of a cross-flow coupling or a downhole valve chamber centralizer arranged at the connector-disconnector on the bottom of the layout and / or above the sealing assembly on the top of the layout, the telescopic connection, located underneath or above the electric valve, the valve phase separation. 15. The downhole installation according to item 13, characterized in that it is made of either two sections - the lower and upper, and the lower section is lowered previously and equipped with a packer, planted below the upper object, and a disconnector-connector at the upper end of the lower section, and the upper the installation section has the possibility of subsequent descent and is equipped with an electric drive pump, a power cable, a submersible electric motor, an electric valve, a shank and a sealing assembly located at the lower end of the upper section and sealed in the disconnector-connector of the lower part, forming a hydraulic channel from the lower object through the channel of the electric valve into the space above the packer to the input module of the electric drive pump, and this channel is open or closed by the shutter of the electric valve, or it is made of one section of the pipe string rigidly or not rigidly connected to a packer without or with a disconnector-connector of a pipe string having the possibility of simultaneous descent together with an electric drive pump, an electric valve a packer mounted under the top object. 16. The downhole installation according to item 13, wherein the electric valve is equipped with a measuring transducer installed either inside or outside the valve to measure the parameters of the reservoir fluid flow passing from the object to the input module of the electric drive pump through its inlet hydraulically connected to the corresponding object or it is combined with a submersible telemetry unit, which is either integrated in the head of a submersible electric motor, or is made autonomously and located directly under the submersible electric motor either above or below the electric valve, or it is built into the electric valve without or with an additional power source for the transmitter at the time of the cessation of supply of electric current that can be charged after it is supplied. 17. The downhole installation according to item 13, wherein the input of the electric valve is made in the form of an axial channel located in the lower part of the valve under the shutter and is hydraulically connected to the object, and the output of the electric valve is made in the form of a radial lateral or angular, or axial, at least one channel located above the valve and hydraulically connected to the input module of the electric drive pump through the annulus. 18. The downhole installation according to item 13, wherein the electric valve is made with a shutter to fully open and close the fluid flow of the lower object, while the shutter can either move parallel to the axis of the fluid flow, or rotate around its own axis and has the shape of a body of revolution or a part thereof, or rotation about an axis perpendicular or angled with the direction of fluid flow, and has a disk shape. 19. The downhole installation according to item 13, wherein the electric valve is made with a shutter having the form of either a hemisphere or a ball connected or not connected to the actuator rod and located above or below the seat, or a truncated cone with a sealing surface of the corresponding conical surface of the seat or cylinder with a sealing cylindrical surface. 20. The downhole installation according to item 13, wherein the solenoid valve is either normally closed or normally open with an actuator, which, in the absence or interruption of power supply, automatically switches the shutter to either “Closed” or “Open” position " 21. The downhole installation according to item 13, wherein the electric valve is made with a remotely located actuator or actuator not installed directly in it, while to seal the movable rod from the formation fluids, the valve is equipped with either an stuffing box seal or a bellows, either a membrane or a diaphragm. 22. The downhole installation according to item 13, characterized in that it is additionally equipped with one or more devices - a device for acting with a working agent or for jamming a lower object with a closed electric valve located under it and above the packer on the pipe string or liner, this device is made in the form of a bypass valve or check valve in the borehole chamber, an adapter from the electric valve to the liner on which the packer is installed, a receiving device for the fluor to enter the pipe string yes from the lower object located under the packer on the pipe string, and this device is made in the form of a nipple or radial flow coupler, or cross-flow coupler, or valve in the borehole chamber, with an additional lower packer installed above the additional lower object, a receiving device for entering a fluid pipe string from an object located between the packers on the pipe string, this device being made in the form of a cross-flow sleeve or valve in the borehole chamber, with a centralizer located under azedinitelem-connector on the bottom of the layout and / or above the sealing assembly on the top of the layout, the telescopic connection, located underneath or above the electric valve, the valve phase separation. 23. A downhole installation containing a pipe string equipped with a packer for disconnecting between the lower and upper objects with or without a disconnector-connector, an electric drive pump equipped with an input module, a casing, a shank, a submersible motor with or without a submersible telemetry unit, a cable and an electric valve without or with a connecting pipe, characterized in that the electric valve of electromagnetic or electromechanical action is connected electrically or to a submersible electric motor lem, either with a submersible telemetry unit, or with a cable, and it is also connected mechanically or with a submersible electric motor, or with a submersible telemetry unit, or with a casing, or with a connecting pipe, and the electric valve is located above the packer, its outlet is hydraulically connected with the input module of the electric drive pump, and its input is hydraulically connected with the space above the packer, while the electric valve is made with the possibility of controlled both cutting off and passing through the fluid flow of the upper object. 24. The downhole installation according to item 23, characterized in that it is additionally equipped with a cross-flow coupling located under the electric valve and connected rigidly or not rigidly to the casing from above, and from below it is connected mechanically to the liner or to the packer, and the cross-flow coupling is made with at least one radial channel. 25. The downhole installation according to claim 23, wherein the casing is rigidly connected to the pipe string above the electric drive pump from above and connected to the packer rigidly or non-rigidly from below. 26. The downhole installation according to claim 23, characterized in that it is additionally equipped with one or more devices - a device for acting on a working agent or for jamming a lower object with a closed electric valve located under it and above the packer on the pipe string or liner, or on the casing, and this device is made in the form of a bypass valve or check valve in the borehole chamber, a centralizer located inside the casing above or below the electric valve, a sleeve for attaching the casing to the pump-compressor pipes above the electric drive pump, a cable entry in the casing for passage of the power and / or additional cable, an adapter from the casing to the liner on which the packer is mounted, a receiving device for entering the fluid pipe from the lower object, located under the packer on the pipe string, this device is made in the form of a nipple or valve in the borehole chamber, distribution and mixing valves. 27. A downhole installation containing a pipe string equipped with a packer for disconnecting between the lower and upper objects with or without a disconnector-connector, an electric drive pump with a casing, equipped with an input module, a submersible motor with or without submersible telemetry unit, a power cable and, at least one electric valve, characterized in that the electric valve of electromagnetic or electromechanical action is electrically connected either to a submersible electric motor or to a submersible block telemetry, either with a cable, and also it is connected mechanically or with a submersible electric motor, or with a submersible telemetry unit, or with a casing, while the output of the electric valve is hydraulically connected to the input module of the electric drive pump, and either the electric valve is made with two isolated inputs , one of which is hydraulically connected to the space below the packer, and the other to the space above the packer, or the layout is equipped with two electric valves, one of which is hydraulically connected to the space om below the packer, and another - with the space above the packer, while allowing managed as a cutoff and passes through the fluid flow itself, to respectively lower or upper object or simultaneously for upper and lower objects. 28. The downhole installation according to item 27, characterized in that it is additionally equipped with a cross-flow coupling located under the electric valve and connected rigidly or not rigidly to the casing from above, and from below it is connected mechanically to the liner or to the packer, and the cross-flow coupling is made at least one radial channel hydraulically connected to its non-through axial or eccentric channel connected to the inlet of the electric valve for controlled passage of the formation fluid of the first object and, at least one longitudinal through eccentric channel hydraulically connected either with an additional inlet to the electric valve or with an additional electric valve for controlled passage of the formation fluid of the second object, while the inlet or additional inlet of the electric valve is connected to the cross-flow coupling directly or through an intermediate the pipe is either threaded, or flanged, or telescopically sealing. 29. The downhole installation according to item 27, wherein the output of the electric valve is hydraulically connected at one shutter position with the under-packer space, at a different shutter position with the over-packer space, with a third shutter position - simultaneously with both the packer and over-packer spaces moreover, the change in the position of the shutter is made along the axis of the valve or by rotation by a stepwise electric actuator. 30. The downhole installation according to claim 27, characterized in that it is additionally equipped with one or more devices - a device for acting on a working agent or for jamming a lower object with a closed electric valve located under it and above the packer on the pipe string or liner, or on the casing, and this device is made in the form of a bypass valve or check valve in the borehole chamber, a centralizer located inside the casing above or below the electric valve, a sleeve for attaching the casing to the pump-compressor pipes above the electric drive pump, cable entry in the casing for the power and / or additional cable to pass through the adapter from the casing to the liner on which the packer is mounted, a receiving device for the fluid pipe to enter the pipe from the lower object, located under the packer on the pipe string, the device is made in the form of a nipple or valve in the borehole chamber, distribution and mixing valves. 31. A downhole installation containing at least one pipe string equipped with upper and lower packers for separating objects between each other with or without a disconnector-connector, an electric drive pump with or without a casing, equipped with an input module, a submersible motor with a submersible telemetry unit or without it, a cable and at least one electric valve, characterized in that the electric valve of electromagnetic or electromechanical action is electrically and mechanically connected on one side or with an external electric motor, or with a submersible telemetry unit, and on the other hand, with an upper packer made with two shafts for downstream eccentric pipe columns, while the output of the electric valve is hydraulically connected to the input module of the electric drive pump, and either the electric valve is made with two isolated inputs , one of which is hydraulically connected with the space under the upper packer, and the other with the space under the lower packer, or the layout is equipped with two electric valves, one of which it is hydraulically connected with the space under the upper packer, and the other with the space under the lower packer, while ensuring the possibility of both cutting and passing fluid flow through itself, respectively, for an object located under the upper or lower packer, or simultaneously for these objects. 32. The downhole installation according to p. 31, characterized in that the electromechanical packer is installed under the additional upper object, and the layout depending on the operating conditions of the well is additionally equipped with one or more of the elements - an additional measuring system, a sealing element, a bypass system for bleeding free gas , a borehole chamber with a removable valve or a blind plug, or a liquid level stabilizer, or a gas pressure regulator, or an autonomous measuring device for amer physical parameters of the formation fluid flow, the additional disconnector string above the packer electromechanical, an additional power cable for the electric control valve and / or electromechanical packer, wherein the cable or connected to the power cable through Electric device or goes to the surface to the control station.

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