RU2680563C1 - Method and device for formation geomechanical impact - Google Patents

Abstract

FIELD: oil and gas industry.SUBSTANCE: group of inventions relates to the oil industry and can be applied to improve the efficiency of oil production from low-permeable reservoirs in the development of oil fields. This problem is solved by forming an area of secondary fracturing around the well bore by cyclically reducing and increasing the bottomhole pressure. Each cycle consists of the stages of creating the most technologically possible depression to the reservoir, maintaining at the bottom-hole pressure reached, blocking the well at the mouth for a period of 1–2 days, forcing the increase of the bottomhole pressure by pumping fluid into the reservoir until the technologically realizable maximum bottomhole pressure is reached, blocking the well at the mouth for 1–2 days. Water or water-based solution, for example, produced water, water from a water intake system from other horizons, water from external sources or prepared saline solution based on them, or degassed oil, or condensate, or diesel fuel is used as a fluid forcing agent. When well is inactive, the pressure dynamics in the well are recorded. Cycles are repeated until stable values of productivity or injectivity coefficients are achieved. After the exposure cycles are completed, the well is put into operation under design modes of production or injection. Simultaneously with the method proposed device for its implementation.EFFECT: technical result is to increase the efficiency of oil production from low-permeable formations.14 cl, 8 dwg

Description

The group of inventions relates to the oil industry and can be used to increase the efficiency of oil production from low-permeability reservoirs in the development of oil fields.

A well-known method of well development, which provides, after performing perforation, the creation of a significant amount of depression necessary for partial destruction of the formation with subsequent increase in permeability of the bottom-hole zone and productivity of the well, and a device for its implementation, containing a jet pump (Kovalenko Yu.F., Kulinich Yu.V. , Karev V.I., Titorov M.Yu., Lesnichiy V.F., Samokhvalov G.V. METHOD OF DEVELOPMENT WELLS. RU 2179239, 2000). The known method and device provide only a single decrease in pressure in the reservoir and its maintenance at this level until the well is put into production. In addition, they are not intended for implementation on injection wells.

The closest in technical essence the solution to the first claimed invention is a method of geomechanical impact on the reservoir. It includes the creation of a secondary fracture zone around the borehole by lowering the bottomhole pressure to the minimum technologically feasible value and opening the resulting cracks when restoring the bottomhole pressure. As well as the subsequent commissioning of the well as production or injection and the implementation of operations by changing several modes with a gradual increase in depression or repression on the formation and determining the optimal value of depression or repression with adjusting the design operating modes (Zakirov S.N., Drozdov A.N. ., Zakirov E.S., Drozdov N.A. et al., RU 2620099, 2017).

The closest technical solution to the second claimed invention (device) is a device for geomechanical impact on the reservoir, containing wellhead fittings, tubing pipes lowered into the well with the installation of a submersible centrifugal pump with a thermomanometric system unit for pressure and temperature control (RU 2620099, 2017).

The disadvantage of this method and device is the small amplitude of the bottomhole pressure change, which cannot guarantee the formation of a microcrack system.

The technical problem to be solved by the proposed group of inventions is to increase the efficiency of oil production from low permeable reservoirs, in particular, from fractured carbonate reservoirs.

This problem is solved by creating a secondary fracture zone around the wellbore by cyclically lowering and increasing bottomhole pressure. Each cycle consists of the stages of creating the most technologically feasible depression on the formation, keeping it at bottomhole pressure for 1-2 days, stopping the well to take the pressure recovery curve and stress relaxation for 1-2 days, forcing the bottomhole pressure to increase by injecting fluid into the formation until the stationary value of the technologically feasible maximum bottomhole pressure, keeping at the achieved pressure for 1-2 days, taking the pressure drop curve for 1-2 days. The cycles are repeated until stable values of the coefficients of productivity or injectivity are achieved. After the end of the exposure cycles, the well is put into operation under design production or injection modes.

There are several options for implementing the method:

- as a liquid, an injection agent is used with water or a water-based solution, for example, produced water, water from an intake system from other horizons, water from external sources, or prepared saline based on them;

- degassed oil, or condensate, or diesel fuel, or a mixture thereof, is used as an injection agent;

- the produced fluid is separated on the surface, the purified water is again used for injection into the well;

- in the case of initially low productivity or injectivity of the well after the completion of pressure reduction-increase cycles, hydraulic fracturing is carried out in order to combine the formed system of microcracks into a single system;

- as a layout for creating pressure reduction and pressure increase cycles and subsequent well operation, a system is used comprising a submersible pumping unit lowered into the well at the tubing, while in the pressure reduction cycles, fluid is pumped out of the formation by the submersible pumping unit through the tubing to the surface, and in cycles of increasing pressure, the submersible pump installation is turned off and pumping agent (liquid) is injected into the reservoir through the annular space of the well azhina from the surface;

- as a layout for creating pressure reduction and pressure increase cycles and subsequent well operation, a system is used comprising an intermediate string lowered into the well with a liner and a packer, into which a submersible pumping unit is lowered on the tubing, while in the pressure reduction cycles, fluid is pumped out the formation by a submersible pump installation along tubing to the surface, and in cycles of increasing pressure, the submersible pump installation is turned off and liquid is pumped minute into the formation through the annular space between the intermediate casing and the tubing with the tubing surface;

- as a layout for creating pressure reduction and increase cycles and subsequent well operation, a system is used comprising a bypass submersible pump unit lowered into the well on tubing, the annulus being blocked by a packer, an anchor installed above the packer, and located at the outlet of the submersible pump installation non-return valve, while in pressure reduction cycles they block the bypass line with a plug and pump out the fluid from the reservoir with a submersible pump installation using a pump pressurized pipes to the surface, and in cycles of increasing pressure, the submersible pump installation is turned off, the plug is removed from the bypass line and the fluid is pumped into the reservoir through the tubing and bypass line from the surface, and after the completion of the cycles, production wells are put into operation under design operating conditions by blocking the bypass line with a stopper and pumping out the reservoir products by the submersible pumping unit along the tubing to the surface, and injection wells s is put into operation at the design operating conditions by removing plugs from the bypass line and the injection fluid into the reservoir through the tubing and the bypass line;

- in the layout, lowered into the well before the start of the impact, include the installation of a submersible centrifugal pump, equipped with a circulation valve for geomechanical impact and designed to ensure the design modes of operation of the well after the end of the geomechanical impact;

- the operating modes of the submersible pump installation are regulated using a control station equipped with a frequency converter.

An alternative to the configurations described above is a patented device for geomechanical stimulation of a formation containing wellhead fittings and tubing pipes lowered into the well with the installation of a submersible centrifugal pump with a thermomanometric system unit for monitoring pressure and temperature. According to the invention, the borehole space of the well is communicated through a valve with a fluid injection line, a circulation valve is installed at the outlet of the submersible centrifugal pump in the tubing string, while the borehole space of the well is blocked by a packer above the circulation valve.

In preferred embodiments of the device:

- the circulation valve consists of a hollow body with bypass radial holes, a cover with an axial hole and a sliding hollow bowl-shaped overlapping piston having an axial hole in the upper part with an area smaller than the area of the axial hole in the cover.

- the circulation valve consists of a hollow casing with bypass radial holes and an internal groove in the zone of placement of the bypass radial holes, a sliding cover sleeve with a bypass radial holes and a catcher, seals and a retainer, and the sliding cover sleeve can be moved in the housing using a set of cable technique tools .

- the circulation valve consists of a hollow body with radial bypass openings, a sliding cover sleeve with a catcher, seals and a retainer, and the sliding cover sleeve has the ability to be installed in and removed from the housing using a set of rope equipment tools.

The technical result of the group of inventions is to create due to the cyclic geomechanical impact on the formation of the system of multiple micro- and macrocracks in the volume of the reservoir, increasing the productivity of production and injectivity of injection wells.

The claimed technical solutions are so interconnected that they form a single inventive concept, therefore, this group of inventions satisfies the requirement of the unity of the invention.

Description of drawings

In FIG. 1 shows a layout diagram for implementing the method, FIG. 2 is a variant of a system with separation of produced fluid on the surface, FIG. 3 is an embodiment of an arrangement with an intermediate column and a liner; FIG. 4 is a variant of a system with a bypass submersible pump installation; FIG. 5 is a device for implementing the method, comprising installing a submersible centrifugal pump with a circulation valve, FIG. 6, 7, 8 - embodiments of the circulation valve.

The layout for implementing the method comprises (see Fig. 1) launched into the well 1, drilled into the formation 2, on a string of tubing 3, a submersible pumping unit 4 with a thermomanometric system (TMS). Electricity is supplied to the submersible pump installation 4 via cable 5. The space between the inner surface of the production casing of the well 1 and the outer surface of the tubing string 3 is the annulus 6. Installation 4 is equipped with a control station 7 with a frequency converter. At the wellhead 1, wellhead reinforcement 8 is mounted. Valves 9, 10 and 11 are installed on it. Wellhead reinforcement 8 also includes a check valve 12 for transferring gas from the annulus 6 to line 13 during well operation 1.

A pump 14 with a suction 15 and a discharge 16 lines is installed on the surface for pumping fluid into the well 1 through the annulus 6.

In an embodiment of the arrangement (see Fig. 2), the system also includes a well production line 17 to the separator 18 with an oil and gas outlet line 19 and a water outlet line 20 provided with a valve 21. The water outlet line 20 is connected to the suction line 15 of the pump 14 .

In another embodiment (see Fig. 3), the system comprises an intermediate string 22 lowered into the well 1 with a liner 23 and a packer 24. A submersible pumping unit 4 is lowered into the intermediate string 22 on the tubing 3, Between the inner surface of the intermediate string 22 and the annular space 25 is formed by the outer surface of the tubing string 3. Gate valves 26 and 27 are additionally installed on the wellhead 8. In this case, the discharge line 16 of the pump 14 is connected to the annular space 25 through the gate valve 26.

In one embodiment (see Fig. 4), the system comprises a bypass submersible pumping unit 4 lowered into the well 1 on tubing 3 with a bypass line 28, the annular space 6 being blocked by a packer 29, an anchor 30 is installed above the packer 29. On a bypass line 28 has a retrievable plug 31. On the wellhead 8, valves 32 and 33 are additionally installed, and a check valve 34 is located at the outlet of the submersible pump unit 4.

A device for geomechanical impact on the reservoir (see Fig. 5) contains wellhead fittings 8, lowered tubing 3 into the well 1 with the installation of a submersible centrifugal pump 4 with a thermomanometric system unit for monitoring pressure and temperature. On the wellhead valve 8 there are valves 9, 10, 11, 32 and 33, and at the outlet of the submersible pump installation 4 there is a check valve 34. The pipe space 6 of the well is communicated through the valve 32 with the discharge line 16, at the outlet of the submersible centrifugal pump 4 in the column tubing 3 above the check valve 34, a circulation valve 35 is installed, while above the circulation valve 35, the annular space 6 of the well 1 is blocked by the packer 29. An anchor 30 is installed above the packer 29. Electricity is supplied to the submersible pump unit 4 by 5. Installation cable 4 is provided with a control station 7 by the frequency converter. Three options for the circulation valve are also presented.

In the first embodiment of the device (see Fig. 6), the circulation valve 35 consists of a hollow body 36 with bypass radial holes 37, a cover 38 with an axial hole 39 and a sliding hollow bowl-shaped overlapping piston 40 having an axial hole 41 in the upper part with an area of less than the area of the axial hole 39 in the cover 38.

In the second embodiment of the device (see Fig. 7), the circulation valve 35 consists of a hollow body 42 with bypass radial holes 43 and an internal groove 44 in the area of the bypass radial holes 43, a sliding cover sleeve 45 with bypass radial holes 46 and a catcher 47, seals 48, 49 and the latch 50, and the sliding overlapping sleeve 45 has the ability to move in the housing 42 using a set of tools of cable technology.

In the third embodiment of the device (see Fig. 8), the circulation valve 35 consists of a hollow body 42 with radial bypass holes 43, a sliding cover sleeve 45 with a catcher 47, seals 48, 49 and a retainer 50, and the sliding cover sleeve 45 can be installed in housing 42 and extraction from it using a tool kit of rope technology.

The method is as follows.

Implementation of pressure reduction and pressure increase cycles using an injection agent to create a network of micro- and macrocracks in both production and injection wells.

The pressure is reduced by producing reservoir fluid by a submersible pump unit 4 until a stationary value of the technologically feasible minimum bottomhole pressure is reached. Installation 4 at the same time pump out reservoir products along the tubing string at the mouth. Products at the mouth are sent to the barn with subsequent processing in accordance with applicable regulations. The operating modes of the submersible pump unit 4 are regulated using the control station 7, equipped with a frequency converter. Well 1 is operated at bottomhole pressure achieved in the regime of 1-2 days. Then, the submersible pumping unit 4 is turned off, the mouth is closed and the pressure recovery curve (HPC) is measured by the sensors in the thermomanometric well system (TMS) of the submersible centrifugal pump 4. The HPC recording time is 1-2 days, during which time there is a partial relaxation of stress in the bottomhole zone. Then, the bottomhole pressure is forcibly increased by injecting liquid into the well 1 until a technologically feasible maximum bottomhole pressure is reached, the well 1 is held at the achieved pressure of 1-2 days, and then the pressure drop curve (EFFICIENCY) is taken for 1-2 days with sensors in the composition thermomanometric borehole system TMS installation of a submersible centrifugal pump 4. In this case, the cycles are repeated until stable values of the coefficients of productivity or injectivity are achieved. The values of the coefficients of productivity and injectivity are determined by the results of the interpretation of efficiency / HPC. After the end of the exposure cycles, well 1 is put into operation under design production or injection modes.

Water or a water-based solution, for example, produced water, water from an intake system from other horizons, water from external sources or prepared saline based on them, or degassed oil, or condensate, or diesel fuel, are used as a pumping agent liquid.

The choice of the agent is carried out according to the results of laboratory experiments on cores for the displacement of reservoir oil by the intended agent under the reservoir conditions. In this case, the agent with the highest displacement coefficient and viscosity under reservoir conditions close to the viscosity of oil under reservoir conditions is selected. A viscosity ratio close to unity is desirable in order to maximize the sweep factor.

The injection agent is fed through the suction line 15 to the intake of the pump 14, with which the agent is pumped into the well 1 through the injection line 16.

In one embodiment of the method, the injection agent (liquid) is injected into the formation 2 through the annulus 6 of well 1. This embodiment is suitable for shallow wells and low injection pressures.

For deep wells and high injection pressures, pumping fluid through the annulus 6 is impractical due to the risk of rupture and leakage of the production string. For these conditions, it is recommended to use other variants of the method.

According to the first of them, as a layout for creating pressure reduction and increase cycles and subsequent operation of well 1, a system is used comprising an intermediate string 22 lowered into the well with a liner 23 and a packer 24 into which a submersible pumping unit 4 is lowered on the tubing 3. Moreover, in pressure reduction cycles, fluid is pumped out from the reservoir by a submersible pumping unit 4 through tubing 3 to the surface. In pressure boosting cycles, the submersible pump unit 4 is turned off and fluid is pumped through the annular space 25 between the intermediate column 22 and the tubing string 3 and further along the liner 23 into the formation 2 by the pump 14 located on the surface, along the line 16 through the valve 26. Such injection under high pressure will not damage the production casing, since it is isolated from the influence of the discharge pressure by the packer 24. However, the high metal consumption of the assembly increases the cost of exposure.

According to a further variant of the method, a system comprising a bypass submersible pumping unit 4 with a bypass line 28 is used as a less metal-intensive arrangement for creating pressure reduction and pressure boosting cycles and subsequent operation of the well. In addition, in pressure reduction cycles block bypass line 28 with plug 31 and pump out fluid from the formation by submersible pump unit 4 through tubing 3 to the surface. The check valve 34 is open when this is done. In pressure boosting cycles, the submersible pump unit 4 is turned off, the plug 31 is removed (for example, using cable technology) from the bypass line 28 and the fluid is pumped into the formation 2 through tubing 3 and the bypass line 28 by the pump 16 located on the surface. The non-return valve 34 is closed. Since the annular space 6 is blocked by the packer 29, above which the anchor 30 is installed, there is no negative effect of high injection pressure on the tightness of the production casing of the well 1.

In the case of initially low filtration and reservoir properties in well 1, after completion of the pressure reduction-increase cycles, hydraulic fracturing is performed to unite the formed microcrack system into a single system. Hydraulic fracturing is carried out by injection into the reservoir 2 through tubing 3 and the bypass line 28, first the fracturing fluid, and then the sand carrier with proppant and squeezing fluid.

In an embodiment of the invention, when using formation or weakly mineralized water, the produced fluid is separated on the surface in the separator 18, and the purified water is again used to pump it into the well 1, directing along lines 20 and 15 to the intake of pump 14.

After exposure, depending on the specific technological conditions, the previously launched submersible pumping unit 4 either remains in the production well to provide mechanized production, or is replaced by a less productive one. After the geomechanical impact, the submersible pumping unit 4 is either removed from the injection well or is left in it. In the latter case, the injection of fluid into the formation is carried out bypassing installation 4, as described above.

In one embodiment of the method (see Fig. 4), after the cycles are completed, production wells are put into operation under design operating conditions by blocking the bypass line 28 with plug 31 and pumping the reservoir products 4 by pumping pipes 3 to the surface by submersible pumping device 3, and injection wells are put into operation at design operating conditions by removing the plug 31 from the bypass line 28 and pumping fluid into the formation 2 through tubing 3 and the bypass line 28.

The operating modes of the submersible pump unit 4 are regulated using the control station 7, equipped with a frequency converter.

A device for geomechanical impact on the reservoir works as follows (see Fig. 5).

The installation of a submersible centrifugal pump 4 is started using a control station 7 with a frequency converter. Electricity from the surface is supplied through cable 5. In the downhole pressure reduction cycle, the installation of a submersible centrifugal pump 4, pumping fluid from the formation 2 through the tubing 3 to the surface, creates the most technologically possible depression on the formation 2 for microcracks in the bottomhole zone of the well 1. The circulation valve 35 is closed while the check valve 34 is open. The valve 9 on the wellhead valve 8 is also open, and the valves 10, 11, 32 and 33 are closed. Installation of a submersible centrifugal pump 4 pumps the fluid from the reservoir 2 into the flow line 13 when the bottomhole pressure is reached in steady state for 1-2 days. Then, the installation of the submersible centrifugal pump 4 is turned off by the control station 7. The sensors in the TMS of the installation of the submersible centrifugal pump 4 are fixed and the pressure recovery curve is recorded for 1-2 days. After that, the valve 9 closes and the valve 32 opens on the wellhead valve 8. The pump 14 is turned on and the working agent is pumped out - liquid through the suction line 16, then supplying the liquid under high pressure along the discharge line 16 to the tubing string 3. The circulation valve 35 is open, and the check valve 34 is closed. The fluid is pumped through an open circulation valve 35 into reservoir 2, bypassing the installation of a submersible centrifugal pump 4, forcibly increasing the bottomhole pressure until a technologically feasible stationary value is reached bottomhole pressure. The packer 29, overlapping the annulus 6, when injecting fluid does not allow high pressure to adversely affect the production casing of the well 1 above the packer 29. Anchor 30 prevents the packer 29 from moving at high pressure drops. Liquid injection at a stationary value of the technologically feasible maximum bottomhole pressure lasts 1-2 days. At the same time, microcracks formed in the downhole pressure reduction cycle are disclosed. Then the pump 14 is turned off. The pressure sensors in the TMS installation of a submersible centrifugal pump 4 are recorded and recorded efficiency for 1-2 days. The cycles of decreasing and increasing the bottomhole pressure are repeated until stable values of the coefficients of productivity or injectivity are achieved. After completion of the exposure cycles, well 1 is put into operation under design production conditions (when the installation of the submersible centrifugal pump 4 is turned on) or injection (when the installation of the submersible centrifugal pump 4 is turned off).

The circulation valve 35 in one embodiment works as follows (see Fig. 6).

When the installation of the submersible centrifugal pump 4 is turned on, the fluid produced from the well 1 is pumped upwardly under pressure up to the tubing string 3. When the fluid passes through the hole 41 in a sliding hollow cup-shaped overlapping piston 41, the area of which is less than the area of the hole 39 in the cover 38, a pressure differential is formed. Due to it, the piston 41 rises up, abutting against the cover 39, and closes the bypass radial holes 37 in the hollow body 38. The circulation valve 35 closes.

When the installation of the submersible centrifugal pump 4 is turned off, the piston 41 lowers down and the bypass radial holes 37 in the hollow body 38 open, ensuring that the circulation valve 35 is in the open position.

The circulation valve 35 in another embodiment, operates as follows (see Fig. 7).

Before the start of the downhole pressure reduction cycle, the sliding cover sleeve 45 with the radial bypass openings 46 and the catcher 47 is installed and fixed with the catch 50 in the hollow body 42 using cable technology tools so that the radial bypass openings 46 in the sleeve 45 do not coincide with the groove 44 and the overflow radial holes 43 in the hollow body 42. The circulation valve 35 is closed, since the bypass holes 43 and 46 in the body 42 and the sleeve 45 do not match, and the seals 48 and 49. prevent retekanie fluid, across the gap between the sleeve 45 and the housing 42 of the tubing 3 to the annulus 6.

Before the forced injection of fluid into the formation 2 to increase the bottomhole pressure, the sliding overlapping sleeve 45 with the radial bypass holes 46 and the catcher 47 is installed and fixed using the cable technology tools in the hollow body 42 so that the radial bypass holes 46 in the sleeve 45 match with a groove 44 and bypass radial holes 43 in the hollow body 42. The circulation valve 35 is open.

The circulation valve 35 in the embodiment, operates as follows (see Fig. 8).

Before the start of the downhole pressure reduction cycle, the sliding cover sleeve 45 with the catcher 47 is installed and fixed with the latch 50 in the hollow body 42 using the rope technology tools. Radial bypass holes 43 in the hollow body 42 are closed. The circulation valve 35 is closed. Seals 48 and 49 prevent fluid from flowing over the gap between the sleeve 45 and the housing 42 from the tubing 3 into the annulus 6.

Before the forced injection of fluid into the formation 2 to increase the bottomhole pressure, the sliding cover sleeve 45 with the catcher 47 is removed using the cable technology tools from the hollow body 42. The circulation valve 35 is open because open radial bypass openings in the hollow body 42 provide communication between the internal tubing cavity 3 and reservoir 2.

Thus, the invention can significantly increase the amplitude of the change in bottomhole pressure, which guarantees the formation of a system of microcracks and makes it possible to significantly increase the productivity of producers and injectivity of injection wells, while increasing the efficiency of oil production.

Claims (14)

1. A method of geomechanical impact on the formation, including the creation of a secondary fracture zone around the wellbore by lowering the bottomhole pressure, the bottomhole pressure being reduced to the minimum technologically possible value, and the opening of the resulting cracks when the bottomhole pressure is restored, as well as the subsequent commissioning of the well as production or injection, characterized in that the effect is realized by repeated cycles of decrease and increase in bottomhole pressure, each of which consists from the stages of creating the most technologically feasible depression on the formation, keeping it at the bottomhole pressure for 1-2 days, stopping the well to take the pressure recovery curve and stress relaxation for 1-2 days, forcibly increasing the bottomhole pressure by injecting fluid into the formation until stationary the value of the technologically feasible maximum bottomhole pressure, keeping at the achieved pressure for 1-2 days, taking the pressure drop curve for 1-2 days, with repeated cycles yayut until stable values of coefficients productivity or injectivity, and after exposure cycles administered well in operation at the design of production or injection modes. 2. The method according to p. 1, characterized in that water or a water-based solution, for example produced water, water from a water intake system from other horizons, water from external sources or prepared saline based on them, is used as a liquid injection agent. 3. The method according to p. 1, characterized in that as the injection agent use degassed oil, or condensate, or diesel fuel. 4. The method according to p. 2, characterized in that the produced fluid is separated on the surface, the purified water is again used for injection into the well. 5. The method according to p. 1, characterized in that in the case of initially low productivity or injectivity of the well after completion of the pressure reduction-increase cycles, hydraulic fracturing is carried out in order to combine the formed microcrack system into a single system. 6. The method according to p. 1, characterized in that as a layout for creating cycles of pressure reduction and increase and subsequent operation of the well, a system is used comprising a submersible pumping unit lowered into the well at the tubing, while pumping in pressure reduction cycles fluid from the reservoir by a submersible pump installation along the tubing to the surface, and in cycles of increasing pressure, the submersible pump installation is turned off and pumping agent (liquid) is pumped into the reservoir Art through the annulus of the well from the surface. 7. The method according to p. 1, characterized in that as a layout for creating cycles of pressure reduction and increase and subsequent operation of the well, a system is used that contains an intermediate string lowered into the well with a liner and a packer, into which a submersible pump is lowered on the tubing installation, while in the cycles of pressure reduction, fluid is pumped out of the formation by the submersible pump installation through the tubing to the surface, and in the cycles of pressure increase, the submersible pump installation is they turn on and pump fluid into the reservoir through the annular space between the intermediate column and the tubing string from the surface. 8. The method according to p. 1, characterized in that as a layout for creating cycles of pressure reduction and increase and subsequent operation of the well, a system is used comprising a bypass submersible pumping unit lowered into the well on tubing, the annulus being blocked by a packer, above An anchor is installed in the packer, and a check valve is located at the outlet of the submersible pump installation, while in the pressure reduction cycles they block the bypass line with a plug and pump out the fluid from the submersible reservoir the pumping unit through the tubing to the surface, and in the pressure boosting cycles, the submersible pumping unit is turned off, the plug is removed from the bypass line and the fluid is pumped into the reservoir through the tubing and bypass line from the surface, and after the cycles are completed, production wells are introduced into operation under design operating conditions by blocking the bypass line with a plug and pumping out the reservoir products by a submersible pump installation through tubing at surface and injection wells is put into operation at the design operating conditions by removing plugs from the bypass line and the injection fluid into the reservoir through the tubing and the bypass line. 9. The method according to p. 1, characterized in that the arrangement, lowered into the well before the start of the impact, include the installation of a submersible centrifugal pump, equipped with a circulation valve for geomechanical impact and designed to ensure the design modes of operation of the well after the end of the geomechanical impact. 10. The method according to PP. 6-9, characterized in that the operating modes of the submersible pump installation is regulated using a control station equipped with a frequency converter. 11. Device for geomechanical impact on the formation containing wellhead fittings, tubing pipes lowered into the well with the installation of a submersible centrifugal pump with a thermomanometric system unit, for monitoring pressure and temperature, characterized in that the tube space of the well is communicated through a valve with a fluid injection line , at the outlet of the submersible centrifugal pump, a circulation valve is installed in the tubing string, while the annulus above the circulation valve about the well blocked by a packer. 12. The device according to p. 11, characterized in that the circulation valve consists of a hollow body with bypass radial holes, a cover with an axial hole and a sliding hollow bowl-shaped overlapping piston having an axial hole in the upper part with an area smaller than the area of the axial hole in the cover. 13. The device according to p. 11, characterized in that the circulation valve consists of a hollow body with bypass radial holes and an internal groove in the zone of placement of the bypass radial holes, a sliding cover sleeve with a bypass radial holes and a catcher, seals and a retainer, and a sliding cover sleeve has the ability to move in the housing using a set of tools of cable technology. 14. The device according to p. 11, characterized in that the circulation valve consists of a hollow body with bypass radial holes, a sliding cover sleeve with a catcher, seals and a latch, and the sliding cover sleeve can be installed in and removed from the housing using a set of tools cable technology.

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