RU62657U1 - DEVICE FOR REMOTE MANAGEMENT OF WELD WELLS - Google Patents

Abstract

The utility model relates to devices for controlling the flow of gaseous and liquid substances using elements of a pressure-sensitive medium. The device has a locking device (cut-off), a regulating device, a hydrate inhibitor input device, control solenoid valves and a pressure sensor interlocked in a single module. The module contains a bypass valve between the shutoff valve and the control device. The cutoff device and the regulating device comprise actuators using the energy of a hydrate inhibitor. A shut-off actuator is used as a bypass valve actuator. The pressure sensor when switching the solenoid valve sequentially measures the pressure before the shut-off device and after the control device. The technical result is the ability to reduce the number of actuators, by combining their functions and simplifying device management.

Description

The proposed utility model relates to devices for controlling the flow of gaseous and liquid substances using pressure sensitive media and can be used in gas production fields with electrified and non-electrified well clusters.

Known systems for remote control of wells. “The control system for well shut-off (AS No. 1622588, MKI 5 ЕВВ 43/00, F 17 D 1/00, publ. 23.01.1991), designed to switch the wellbore. "The control system of each well of the bush (patent No. 46041, MKI 5 EV 43/12).

A disadvantage of the known devices is the use of a single actuating device for controlling the well, and if necessary, controlling several devices (a shut-off device, a regulating device, introducing a hydrate inhibitor, measuring process parameters, etc.), the control system is complicated, its reliability is reduced, and operating costs are increased.

The problem, which the utility model is aimed at, is to create such a technical solution, using which it would be possible to reduce the number of actuators, by combining their functions and simplifying device management.

This problem can be solved using the proposed device, made in the form of a module containing all the necessary actuating devices in a single unit, and in particular: a shut-off device, a regulating device, a hydrate inhibitor input device, pressure sensors, temperature sensors, control electromagnetic valves, which provide remote operation of the module mode.

A new feature that distinguishes the proposed technical solution from the prototype is that the device for remote control of the well’s wells is made in the form of a module containing a shutoff device, a regulating device, a hydrate inhibitor input device, a pressure sensor, control electromagnetic valves that provide remote operation of the module .

The device provides emergency automatic shut-off of the well upon reaching the maximum allowable gas flow; remote and manual control of gas flow in the well; remote opening - closing the well by command;

remote and manual regulation of hydrate inhibitor flow rate; control of changes in static pressure in the well when the gas flow is shut off.

The proposed utility model is depicted in the drawing, where: in Fig.1 - a device for remote control of well wells.

The device comprises a composite housing 1 and placed therein, a cutter 2, a regulating device 3, a hydrate inhibitor input device 4, a bypass valve 5, a block of control electromagnetic valves 6, a pressure sensor 7.

The cutter 2 contains a locking element 8 with a latch 9, an electromagnetic command element 10, a mechanical element with a resilient element command element 11, a drive of the locking element 12.

The regulatory device 3 contains a regulatory body 13, the drive of the regulatory body 14.

The hydrate formation inhibitor input device 4 comprises an inhibitor input element 15 and a throttle device 16 and is installed after the regulatory body at a low pressure point.

The bypass valve 5 is actuated by the actuator 12.

The block of control electromagnetic valves 6 contains six valves, two of which control the actuator 12 of the shut-off device 2, two of the actuator 14 of the regulatory body 13, one valve controls the flow of the hydration inhibitor, and one valve switches the pressure sensor 7 when measuring the inlet and outlet pressure.

The well control using the device for remote control is as follows.

During the operation of the well bore, gas enters the pipeline with a certain technological flow rate regulation. When the flow rate increases, the pressure in the pipeline decreases and when the maximum permissible pressure value is reached, the electromagnetic command element 10 is triggered by a signal from the pressure sensor, the shut-off element 8 blocks the gas flow. If the electromagnetic element 10 does not work, the mechanical command element 11 acts on the shut-off element 11. The shut-off device is opened by supplying control signals to the actuators 12 and 14. At the same time, the regulating organ 13 closes the passage, and the actuator 12 opens the bypass valve 5. After equalizing the pressure before and after the shut-off element 8, the actuator 12 opens the shutter 2, the locking element 8 is fixed in the open position, and the actuator 12 returns to its original position, closing the bypass valve 5. The actuator 14 sets the regulating organ 13 in original position. In drives 12 and 14 in

As a working medium, a hydrate inhibitor supplied to the well is used.

The input of the hydrate inhibitor is carried out through the input device 15, through the throttle device 16, which provides the necessary consumption of the inhibitor. Additional control of the flow of the inhibitor is carried out by switching the solenoid valve of the valve block 6. The pressure sensor 7 measures the pressure in front of the shut-off element 8 or after the regulating body 13 depending on the position of the corresponding electromagnetic valve of the valve block 6.

Pressure measurement with a single sensor at different points improves measurement accuracy.

Due to the fact that the well protection functions with an increase in gas flow above the permissible and the function of the technological switching of the well are combined in one shut-off device, the shut-off drive is combined with the bypass valve actuator, the hydrate formation inhibitor input device is placed in the body of the control device, which ensures the best conditions for spraying the inhibitor.

Simple device control by switching solenoid valves ensures reliable operation and does not require expensive maintenance.

Claims (5)

1. A device for remote control of wells in a bush, comprising a shut-off device (cut-off), a regulating device, a hydrate inhibitor input device, control solenoid valves, a pressure sensor, wherein said devices are interlocked in a single module. 2. The device according to claim 1, characterized in that the module comprises a bypass valve between the shut-off device and the control device. 3. The device according to claim 2, characterized in that the cut-off and the regulating device contain actuators using the energy of the hydrate inhibitor. 4. The device according to claim 3, characterized in that the shut-off actuator is used as a bypass valve actuator. 5. The device according to claim 1, characterized in that the pressure sensor when switching the electromagnetic valve sequentially measures the pressure before the shut-off device and after the control device.