RU2362004C1 - Method of control over christmas trees and facility for implementation of this method - Google Patents

Abstract

FIELD: oil and gas production.

SUBSTANCE: group of inventions refers to gas producing industry and can be implemented for automatic control over processes at gas producing well operation. The method includes control over Christmas tress of a well cluster and consists in opening and shutting off Christmas tress of a well cluster by means of independent supply of working agent into actuators of side and borehole gates, underground shut-off valves and valves regulating yield of each well. Also liquid is used as working agent. Operational pressure of liquid is preliminary created in pneumatic hydro-accumulators of pressure united with a tank of working agent, with pumps, pressure regulators and multipliers into a hydraulic system. To implement the method there is disclosed a station containing a control cabinet, wherein the hydraulic system for control over the Christmas tree and the underground shut-off valve of wells is assembled; the system contains instruments of control equipment and automation, actuators, and distributors with a drive and with cavities of inlet, outlet and drainage installed as in the line of control over borehole and side gates, so in the line of control over the underground shut-off valve.

EFFECT: increased reliability of operation by means of functioning of station regardless of source voltage; also simplification of requirements to operation.

19 cl, 2 dwg

Description

The invention relates to the gas industry and can be used in the technique of automatic control of technological processes and is intended to improve the reliability of gas production wells.

The well-known Cameron fountain valve control station operated at the Astrakhan gas condensate field (see "Wellhead and fountain fittings equipment", volume 6, v / o Mashinoimport, contract No. 50-0926 / 71338. Cameron No. 870020, technical documentation No. Р 190/87, Moscow, USSR).

The specified station contains a control cabinet for fountain valves, a pneumatic-hydraulic membrane separator, a normally closed three-line on-off pneumatic directional valve, a pressure gauge, valve pairs, a nozzle-flapper, a gearbox and an orifice installed both along the side valve control line and the underground shutoff valve control line and fountain fittings. In the control cabinet mounted pneumatic and hydraulic control systems for actuators of fountain valves (FA), a central valve (CZ), a lateral valve (BZ) and an underground shut-off valve (PKO). The hydraulic cavity of the membrane separator is in communication with the sensitive element of the pressure gauge, while the latter is connected to the valve of the valve pair of the nozzle-damper using a transmission mechanism.

The disadvantage of this station is the lack of reliability and the need for its maintenance by highly qualified personnel. The reasons for the lack of reliability of the station are:

- overlap of the orifice of the throttle due to hydrates falling out of the control gas, as a result of which the station shuts off the well;

- freezing of the valve pair of the nozzle-damper at high humidity of the control gas, as a result of which the valve pair, and therefore the station, becomes inoperative;

- the well does not automatically shut off in the event of an increase in gas pressure in the gushing.

The need for servicing the station by highly qualified personnel is caused by the fact that the transmission mechanism is set from the pressure gauge sensitive element to the valve flap of the nozzle-flap valve pair is painstaking and requires careful attention of the personnel.

A known method of controlling fountain fittings and an underground valve-shutoff of gas production wells, which consists in opening and closing the fountain fittings of a wellbore by independently supplying a working fluid to the actuators of the side (BZ) and stem valves (SZ), underground shutoff valves (PKO) and valves regulating the debit of each well using a system containing instrumentation and instrumentation A, actuators and installed in the station cabinet (RF patent No. 2181426 dated 02.07.01, IPC: Е21В 33/03, 43/12 - prototype).

The disadvantages of this method is that as a working fluid for actuators use gas and liquid, which leads to significant inertness during operation, and when the power is disconnected from the station, the well closes, because for the operation of units that create the pressure of the working fluid in the pipeline, a supply voltage is required.

To implement this method, a control station for fountain fittings and an underground shutoff valve for gas production wells is used, which contains a control cabinet in which pneumatic and hydraulic systems are installed, membrane pneumatic-hydraulic separators and normally closed three-line on-off pneumatic valves with an input and output and drainage cavities, installed both along the control line of the lateral valve, and along the control line of the underground shutoff valve and fountain arm Uroy, at the same time, a normally open three-line two-position pneumatic distributor with a drive is installed in it along the side gate valve control line, the input cavity of which is connected to the pneumatic system of the control cabinet, the output cavity is connected to the input cavity of a normally closed three-line two-position pneumatic distributor, while the actuator cavities are normally open and normally closed three-line on-off directional valves are connected by a channel to the hydraulic cavity of the membrane evohydraulic media separators (RF Patent No. 2181426 dated 07/02/01, IPC: ЕВВ 33/03, 43/12 - prototype).

The principle of operation of the station is as follows.

When gas pressure arrives through the pipeline into the gas cavity of the media separator, the same pressure of the working fluid will appear simultaneously in its hydraulic cavity and in the cavities of the actuators of the pneumatic valves. Upon reaching the specified gas pressure in the cavity of the medium separator, the hydraulic actuator of the pneumatic distributor, overcoming the spring tightening force, sets it in the open position. In this position, its inlet cavity communicates with the outlet cavity, and the drainage cavity is hermetically separated from the outlet cavity. In this case, the valve will remain in the open position, since the force from its hydraulic actuator is less than the spring force. As a result, the control gas from the control cabinet will be piped.

When the gas pressure enters the pipeline into the gas cavity of another media separator, the pneumatic distributor is likewise installed in the open position. As a result of this, the control gas from the control cabinet will be piped to the air distributor.

After the control gas pressure arrives at the pneumatic valves of the pneumatic distributors, the latter will open and the control gas will be supplied to the pneumatic actuators of the FA and PKO pneumatic distributors, after which they will be kept in the open position under the action of the force from their pneumatic actuators.

With a decrease in gas pressure in the flow line of the well, and consequently, a decrease in pressure in the hydraulic cavity of the media separator below the minimum acceptable value, the pneumatic distributor is installed under the action of the spring force in the closed position. At the same time, its exit cavity is disconnected from the entrance cavity and communicates with the drainage cavity. Due to the pressure release of the control gas in the pneumatic distributor drive through the drainage cavity of the БЗ pneumatic distributor and its closure, the pressure of the control gas in the pneumatic distributor drive through the pneumatic distributor drainage cavity and the valve will close. With the air distributor closed, the pressure of the supply gas in the pneumatic actuator will be vented through the pneumatic distributor drainage cavity and the side valve will close.

If the gas pressure in the fountain valves decreases below the minimum permissible value, the FFP air distributor will likewise be set to the closed position and the control gas pressure in the air distributor drive will be vented through the air distribution valve drainage cavity and the FFP air distributor will close. As a result, the pressure of the control supply gas in the pneumatic actuators of the pneumatic valves will be vented. When the valve is closed, the supply gas pressure in the valve of the hydraulic distributor will be vented through the drainage cavity of the valve and the valve will close.

With the valve closed, the pressure in the FFP hydraulic actuator will be vented through the drainage cavity of the hydraulic distributor and the FFP will close. With closed pneumatic distributors, the pressure of the supply gas in the FA pneumatic actuators will be vented through the drainage cavities of the pneumatic distributors and the FA will close.

With increasing gas pressure in the flow line of the well above the maximum allowable value, the hydraulic actuator of the pneumatic distributor, overcoming the force of the spring, will set it in the closed position. In this position, its exit cavity is disconnected from the entrance cavity and communicates with the drainage cavity. At the same time, the air distributor will remain in the open position, since the force from the hydraulic actuator is greater than the spring force. Due to the pressure relief of the control gas in the pneumatic distributor drive, the pneumatic distributor will close through the drainage chamber of the pneumatic distributor, and then the BZ will be similar to reducing the gas pressure in the flow line of the well.

If the gas pressure in the fountain valves increases above the maximum permissible value, the hydraulic actuator of the pneumatic distributor, overcoming the compression force of the spring, will set it in the closed position. In this position, its exit cavity is disconnected from the entrance cavity and communicates with the drainage cavity. At the same time, the pneumatic distributor will remain in the open position, since the force of its hydraulic actuator is greater than the spring force. With this position of the valve, the pressure of the control gas in the valve drive will be vented through the drain valve cavity. As a result of this, pneumatic valves and then BZ, TsZ and PKO will be closed in the same way as when reducing gas pressure in the fountain valves. The values of the operating pressures of the pneumatic directional valves to close and the values of the operating pressure of the pneumatic directional valves to open are provided by adjusting the compression force of the spring during assembly.

The disadvantages of this station are the insufficiently high reliability, including the dependence of the station on the presence of supply voltage, the complexity of the design.

The objective of the invention is to remedy the above disadvantages, increase the reliability and simplify the design of the station.

The problem is achieved in that in the proposed method for controlling the fountain reinforcement of the wellbore, which consists in opening and closing the fountain reinforcement of the wellbore by independently supplying the working fluid to the actuators of the lateral and stem valves, underground shutoff valves and valves regulating the debit of each well using system containing instrumentation and instrumentation A, actuators and installed in the cabinet of the station, according to the invention, as a working fluid for controlling drives using wearable mechanisms use liquid, the working pressure of which is previously created in pneumohydroaccumulators of pressure combined with the working medium tank, pumps, pressure regulators and multipliers in the pump-accumulator unit, and the opening of the fountain valves for supplying gas condensate from the well is carried out in the following sequence: shut-off valve, stem valve, lateral valve, closing - in the reverse order with a time delay determined by the inertia of the actuators x mechanisms and safety of the system.

The dynamics of the control system of fountain fittings is determined by the characteristics of additional pressure accumulators and the regulation of throttles installed on the supply line of the working fluid to the actuator actuators, and is selected in such a way as to ensure trouble-free shutting of the well in a given sequence.

To exclude the effect of low temperatures on the plant’s performance, the temperature inside the station cabinet is maintained, which ensures uninterrupted operation of all system elements located in the cabinet.

To improve the reliability of the station at low temperatures, duplicate the work of individual elements of the control system of fountain valves, in particular, duplicate the work of the line "pump-pressure regulator-multiplier".

To simplify the maintenance of the station, the working fluid when closing the well is passed through the bypass drainage lines of the hydraulic system.

Monitoring of operating conditions at the well and closing of the well when they are violated is carried out through the use of a line with a destructible fusible insert in the hydraulic system. In the event of a change in the design modes of operation, for example, in the event of a fire at the well, the insert is destroyed and a command to close the well is automatically issued.

Monitoring compliance with operating conditions at the well and closing the well when they are violated is carried out by using low and high pressure control valves in the gas condensate pipeline in the hydraulic system.

To implement this method, a control plant for fountain fittings is proposed, comprising a station cabinet in which a hydraulic system for controlling fountain fittings and an underground well shutoff valve is installed, containing instrumentation and automation devices, actuators, distributors with a drive and cavities of inlet, outlet and drainage installed both along the control line of the stem and lateral valves, and along the control line of the underground shutoff valve, in which according to the invention in hydraulic systems set pressure accumulators connected to the working fluid tank, pumps, pressure regulators, multipliers and piping for supplying the working fluid side valve actuators, valve stem, the subterranean slam-shut-valve and the valve that regulates the debit of the well.

For ease of installation and maintenance, several independent pneumohydraulic systems have been mounted in the station cabinet for controlling fountain fittings and underground shutoff valves for gas production wells interconnected.

For ease of installation and maintenance during repair work, the hydraulic system is divided into several parts, each of which is mounted as a separate module and has connectors for docking with the rest of the system.

To exclude the influence of low temperatures on the plant’s performance, the temperature inside the station cabinet is maintained, which ensures uninterrupted operation of all system elements located in the cabinet, and the cabinet itself is thermally insulated.

When the station was operated in the low temperature region, for the convenience of repair and routine maintenance, a heated zone was made inside the station cabinet for maintenance and repair of station equipment by maintenance personnel.

To reduce heat loss when opening the station during repair and routine maintenance, the internal cavity of the control cabinet is divided into several parts, each of which has an opening panel, and the station cabinet door is divided into several parts, and the door parts are installed with the possibility of opening as the whole door as a whole , and separately for each part.

To simplify the maintenance of the station, the working fluid, when closing the well, is passed through the bypass drainage lines of the hydraulic system.

Monitoring of operating conditions at the well and closing of the well when they are violated is carried out through the use of a line with a destructible fusible insert in the hydraulic system. In the event of a change in the design modes of operation, for example, in the event of a fire at the well, the insert is destroyed and a command to close the well is automatically issued.

A line with low and high pressure control valves in the gas condensate pipeline has been introduced into the hydraulic system of the station to monitor compliance with operating conditions at the well and close the well if they are violated.

The floors in the cabinet are made in the form of cells so that, if the working fluid gets on the floor, the floor will not be contaminated.

These essential features in the aggregate, characterizing the essence of the claimed technical solution, are not currently known for regulatory devices. The analogue, characterized by the identity of all the essential features of the claimed invention, was not found during the studies, which allows us to conclude that the claimed technical solution meets the criterion of "Novelty."

The essential features of the claimed invention cannot be represented as a combination identified from known solutions with the implementation in the form of distinctive features to achieve a technical result, from which it follows that the criterion of "Inventive step" is met.

Due to the fact that the proposed technical solution is intended for use within the framework of a real control system of fountain reinforcing elements of a wellbore, it was manufactured by the applicant and tested to achieve the claimed technical result, the proposed invention meets the criterion of "Industrial applicability".

The proposed method is implemented as follows.

Previously, in pneumohydroaccumulators of pressure combined with the working medium tank, pumps, pressure regulators and multipliers in the pump-accumulator unit, the pressure of the liquid used in the control station as the working medium is created. The use of pneumohydroaccumulators of pressure will allow maintaining the pressure of the working fluid in the system in case of disconnecting the station from the power supply at least up to 3 times.

Further, the liquid under pressure enters the actuators of the system for further use.

The opening of the fountain valves for supplying gas condensate from the well is carried out in the following sequence: underground shut-off valve, stem valve, lateral valve, closing - in the reverse order with a time delay determined by the inertia of the actuators and the safety of the system, as it is precisely this sequence of actions when opening / closing that ensures trouble-free opening / closing of the well.

The dynamics of the control system of fountain fittings is determined by the characteristics of additional pressure accumulators and the regulation of throttles installed on the supply line of the working fluid to the actuator actuators, and is selected in such a way as to ensure trouble-free shutting of the well in a given sequence.

The liquid used as a working fluid, after being used in the actuators of the system, enters the hydraulic working fluid tank.

To implement this method, a fountain valve control station is proposed, in the hydraulic system of which pneumohydraulic pressure accumulators are used. The invention is illustrated by drawings, in which Fig. 1 shows a schematic diagram of a hydraulic circuit station, Fig. 2 shows a schematic diagram of a hydraulic circuit of a pump-storage unit and a 1st unit, respectively, 1 and 2 in Fig. 1.

In both schemes, the underground shut-off valve (PKO), side gate valve (BZ), trunk gate valve (SZ), low and high pressure control valve (KKNVD), and the angular butterfly valve (UDC) are conventionally not shown, but the working fluid supply lines are shown in actuators of these devices.

The main elements of the station are:

1 - pump and battery installation;

2 - control unit for fountain fittings;

3 - control unit for fountain fittings;

4 - control unit for fountain fittings;

5 - hydraulic tank;

6 - coarse filter;

7 - crane;

8 - pump;

9 - electric motor;

10 - crane;

11 - fine filter;

12 - safety valve;

13 - check valve;

14 - check valve;

15 - crane;

16 - pneumohydroaccumulator;

17 - crane;

18 - pressure gauge;

19 - pressure regulator;

20 - pressure regulator;

21 - pressure regulator;

22 - manometer;

23 - manometer;

24 - manometer;

25 - crane;

26 - pneumohydroaccumulator;

27 - crane;

28 - pressure gauge;

29 - pressure regulator;

30 - manometer;

31 - check valve;

32 - pressure switch;

33 - fusible insert;

34 - the distributor;

35 - the distributor;

36 - distributor;

37 - the distributor;

38 - check valve;

39 - check valve;

40 - manual control valve;

41 - the distributor;

42 - pneumohydroaccumulator;

43 - the distributor;

44 - manometer;

45 - distributor;

46 - the distributor;

47 - pneumohydroaccumulator;

48 - the distributor;

49 - pressure gauge;

50 - distributor;

51 - the distributor;

52 - the distributor;

53 - pressure gauge;

54 - a distributor;

55 - distributor.

The proposed control station operates as follows.

In this case, the station contains three FA control units. The operation of all blocks is similar, therefore, the operation of block 1 is considered as an example.

The working fluid from the hydraulic tank 5 through the pipeline enters through a coarse filter 6 and a valve 7 to the inlet of the pump 8, which is driven by an electric motor 9. At the outlet of the pump after the valve 10, a fine filter 11 is installed.

The safety valve 12, tuned to a predetermined working pressure, when the set pressure is exceeded, connects the high pressure line to the cavity of the hydraulic tank.

Further, the discharge line is divided into two lines, at the inlets of which there are check valves 13 and 14.

Behind the check valve 14 and valve 15, pneumatic accumulators (PGA) 16 are installed on one common collector, designed to store the required supply of working fluid under pressure. The valve 17 is designed to relieve pressure from the PHA 16. An electric contact pressure gauge 18 installed in the same line shuts down the pump motor when the set pressure exceeds the set pressure and switches on when the pressure drops below the set pressure. Next, the pipeline is divided into three working branches and passes through the pressure regulators 19, 20, 21 in the line:

- line valve regulating the debit of the well. In this case, the angle throttle valve (UDC) is considered;

- control line;

- the line of the stem (SZ) and lateral (BZ) gate valves.

Pressure control in these lines is carried out by manometers 22, 23, 24. Ball valves installed in front of the manometers are used for maintenance of manometers.

Behind the non-return valve 13 and the crane 25 on one common collector installed PHA 26, designed to store the required supply of working fluid under pressure. The crane 27 is designed to relieve pressure from the PHA 26. An electric contact pressure gauge 28 installed in the same line disables the pump motor when the set pressure exceeds the set pressure and turns it on when the set pressure drops below the set pressure. Next, the working fluid through the pressure regulator 29 passes into the line of the underground shutoff valve (PKO). Pressure control in the FFP line is carried out by a manometer 30. A ball valve installed in front of the manometer is used for maintenance of the manometer.

The FA control unit is designed to control the supply of pressure to the working bodies of the connected units.

The working fluid, entering the control line after the non-return valve 31, passes through the low and high pressure control valve (hereinafter - KKNVD, not shown conventionally in the drawing) installed on the working string, at the same time filling the line of pressure switch 32 and fusible insert 33.

Pressure switch 32 and fuse-link 33 mounted on the FA are designed to turn off the FA and provide a signal to the controller in case of fire.

In the case of the integrity of the fuse box 33, the fuse line is filled and the distributor 34 opens.

When the gas pressure in the working string corresponding to the configured parameters, the valve KKNVD opens and the liquid passing through it opens the valve 35. When the pressure or pressure of the gas in the working string above the specified parameters KKNVD closes and the station closes the FA.

After the distributors 34 and 35, the working fluid passes through a normally open solenoid valve 36, designed to remotely close the FA.

Then, through the emergency button 37 (distributor 37), the liquid enters the FA opening line.

To ensure the sequence of opening the FA, the circuit includes controlled check valves (hydraulic locks) 38, 39.

To open the underground shut-off valve, it is necessary to open the manually operated distributor 40. In this case, the working fluid opens and puts the distributor 41 on its self-supply, filling the PHA 42 begins, then the distributor 43 opens. The pressure from the “FFP line” passes and opens the FFP, pressure control - by pressure gauge 44.

After opening the FFP, the fluid pressure opens the check valve (hydraulic lock) 39.

To open the root valve, you must open the distributor 45 with manual control. In this case, the liquid opens and puts on the self-supply valve 46, filling of the pneumatic accumulator 47 begins, and then the valve 48 opens. The pressure of the liquid from the "SZ line" passes and opens the SZ, pressure control - according to the pressure gauge 49.

After opening the SZ, the fluid pressure opens the check valve (hydraulic lock) 38.

To open the side gate valve, it is necessary to open the manually operated distributor 50.

In this case, the liquid opens and puts the distributor 51 on self-supply, after which the distributor 52 opens. The pressure from the "BZ line" passes and opens the side valve. Pressure monitoring - by pressure gauge 53.

The distributor 54 is designed for remote closing of the BZ.

Angle throttle valve is remotely controlled by valve 55.

FA closure is performed in the reverse order.

The work of blocks 3 and 4 is similar to the work of block 2.

Thus, the station opens the gushing armature (FA) in the sequence of PKO, SZ, BZ, and closes in the sequence of BZ, SZ, PKO.

The time interval between the sequential closing of the BZ, NC and FFP is adjustable and is:

- 10-40 seconds from the moment of closing the BS to the closing of the SZ;

- 10-40 seconds from the moment of closing the NS to the closing of the FFP.

The station delivers the following information to the control unit (1 unit per 1 well bush) located at a distance of 200 m from the well with the help of switching contacts capable of switching DC voltage:

- open or closed position of the BZ, monitored by end position sensors;

- open or closed position SZ, controlled by end position sensors;

- the closed position of the UDC, controlled by the sensor of the final position;

- open or closed position of the underground FFP, controlled by the presence or absence of pressure in the supply line of the hydraulic drive FFP;

- emergency gas pressure in the working string - by the drop in hydraulic pressure at the outlet of the pilot device installed after the throttle;

- fire alarm - by the pressure drop in the hydraulic system of the station due to depressurization of the fusible safety insert due to an increase in temperature above the design value in case of fire;

- reduced hydraulic pressure after the pump in the line of pneumatic accumulators (PGA).

The station provides automatic shutdown of the well (closure of BZ, SZ and PKO) in the following cases:

- when the temperature rises above the calculated one at the location of the fuse safety plug in case of fire;

- when reducing or increasing the gas pressure in the working string (behind the throttle) to the specified values;

- when a fiber-optic cable breaks, from the control unit to the central control panel on command from the control unit;

- deviations from the calculated values of the hydraulic pressure in the supply line of UDC.

Using the proposed technical solution will improve the reliability of the control station and simplify its design.

Claims (19)

1. The method of controlling the fountain reinforcement of the wellbore, which consists in opening and closing the fountain reinforcement of the wellbore by independently supplying a working fluid to the actuators of the lateral and stem valves, underground shut-off valves and valves regulating the debit of each well using a system containing instrumentation and control devices and A, actuators and a station installed in the cabinet, characterized in that as a working fluid for controlling actuators actuators use liquid, working pressure which is preliminarily created in pneumohydroaccumulators of pressure combined with the working medium tank, pumps, pressure regulators and multipliers in the pump-accumulator unit, and the opening of the fountain valves for supplying gas condensate from the well is carried out in the following sequence: underground shut-off valve, stem valve, lateral valve, closing - in the reverse order with a time delay determined by the inertia of the actuators and the safety of the system. 2. The control method according to claim 1, characterized in that the dynamics of the control system of the fountain valves is determined by the characteristics of the additional pressure accumulators and the regulation of the throttles installed on the supply line of the working fluid to the actuators, and selected in such a way as to ensure trouble-free shutting of the well in given sequence. 3. The control method according to claim 1, characterized in that the temperature inside the station cabinet is maintained, which ensures uninterrupted operation of all system elements located in the cabinet. 4. The control method according to claim 1, characterized in that they duplicate the operation of individual elements of the control system of fountain valves, in particular, duplicate the operation of the line "pump-pressure regulator-multiplier". 5. The control method according to claim 1, characterized in that the working fluid is passed through the bypass drainage lines of the hydraulic system when closing the well. 6. The control method according to claim 1, characterized in that the monitoring of compliance with the operating conditions at the well and closing the well when they are violated is carried out through the use of a line with a destructible fusible insert in the hydraulic system. 7. The control method according to claim 1, characterized in that the monitoring of compliance with the operating conditions at the well and closing the well when they are violated is carried out through the use of low and high pressure control valves in the gas condensate pipeline in the hydraulic system. 8. The device for implementing the method according to claim 1, containing a cabinet of the station, in which a hydraulic system for controlling fountain valves and an underground well shutoff valve is mounted, comprising instrumentation and automation devices, actuators, distributors with a drive and with input and output cavities and drainage installed both through the control line of the stem and lateral valves, and along the control line of the underground shutoff valve, characterized in that pressure accumulators are connected to the tank in the hydraulic system the working fluid, pumps, pressure regulators, multipliers and pipelines for supplying the working fluid to the actuators of the lateral valve, the stem valve, the underground shut-off valve and the valve regulating the debit of the well. 9. The device according to claim 8, characterized in that several independent pneumohydraulic systems are mounted in the control cabinet for controlling fountain fittings and underground shutoff valves of gas production wells interconnected. 10. The device according to claim 8, characterized in that the hydraulic system is divided into several parts, each of which is mounted as a separate module and has connectors for docking with the rest of the system. 11. The device according to claim 8, characterized in that the station cabinet is thermally insulated. 12. The device according to claim 8, characterized in that heating elements are installed inside the station cabinet to ensure a predetermined temperature inside the cabinet. 13. The device according to claim 8, characterized in that a heated zone is made inside the station cabinet for servicing and repairing the station equipment by maintenance personnel. 14. The device according to claim 8, characterized in that the internal cavity of the station cabinet is divided into several parts, each of which has an opening panel. 15. The device according to claim 8, characterized in that the station cabinet door is divided into several parts, the door parts being installed with the possibility of opening the entire door as a whole, or separately of each part. 16. The device according to claim 8, characterized in that bypass drainage lines are made in the hydraulic system of the station cabinet to pass the working fluid when closing the well back into the tank. 17. The device according to claim 8, characterized in that a line with a fusible insert is introduced into the hydraulic system, upon destruction of which the well is closed. 18. The device according to claim 8, characterized in that a line with low and high pressure control valves in the gas condensate pipeline is introduced into the hydraulic system. 19. The device according to claim 8, characterized in that the floors in the cabinet are made in the form of cells.

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