CN118029956A

CN118029956A - Electromechanical liquid integrated test valve

Info

Publication number: CN118029956A
Application number: CN202410318972.9A
Authority: CN
Inventors: 蒋东雷; 陈浩东; 刁欢; 吴轩; 魏安超; 魏剑飞; 王恒; 李祝军; 黄清; 杨凯宇; 彭昊; 邹鹏; 王瑞华; 曹仰康
Original assignee: CNOOC China Ltd Hainan Branch
Current assignee: CNOOC China Ltd Hainan Branch
Priority date: 2024-03-20
Filing date: 2024-03-20
Publication date: 2024-05-14

Abstract

The invention belongs to the technical field of petroleum drilling and production, and discloses an electromechanical liquid integrated test valve which comprises an upper joint and a ball valve outer barrel which are connected with each other, wherein a ball cage is arranged in the ball valve outer barrel, a ball valve assembly is movably connected in the ball cage, one end of the ball cage is connected with a ball seat nipple through a retaining screw, the other end of the ball cage is connected with an actuating mechanism, and the actuating mechanism controls the on-off movement of the ball valve assembly; the actuating mechanism is connected with a power mechanism, the power mechanism provides power for the actuating mechanism to drive the ball valve assembly to move, and one end, far away from the actuating mechanism, of the power mechanism is connected with a lower joint. The invention realizes the opening/closing of the flow channel through the matching of the electric elements and the hydraulic oil, abandons the structure of the existing nitrogen chamber, reduces the operation risk and simultaneously avoids the phenomenon of disordered tool operation.

Description

Electromechanical liquid integrated test valve

Technical Field

The invention belongs to the technical field of petroleum drilling and production, and particularly relates to an electromechanical liquid integrated test valve.

Background

In formation testing, test equipment is lowered into the well to a designed depth through a drill pipe or tubing connection. When the tool is required to be operated in the testing process, the testing equipment can open or close the channels of underground oil gas and the ground through the ground operation, and acquire pressure recovery data through opening or closing the flow channels so as to acquire various pressure and temperature data in each period in the stratum, and meanwhile, fluid samples can be taken out. The data of fluid type, property, oil gas ratio and the like can be obtained through analysis of the sample on the ground, and the stratum permeability and other characteristics can be estimated according to the data of pressure, flow rate, liquid viscosity and the like, so that a basis is provided for later stratum exploitation.

Currently, most existing test equipment adopts a full-path test valve.

The full-path test valve is roughly divided into two types: one is to rely on a floating piston as the power section to open and close the flow path. One end of the floating piston bears the pressure of the static column, and the other end bears the pressure of compressed nitrogen in the nitrogen chamber. After setting the packer, the pump pressure applied to the annular space moves the floating piston downward, pulling the ball valve to the open position. And releasing annular pressure, returning the compressed nitrogen piston upwards, and closing the ball valve. However, the test valve needs to maintain annular pressure during the opening period of the ball valve, personnel on site need to pay attention to pressure change at any time, and the ball valve can be closed once the pressure changes.

Another is to select a test valve. The transposition mechanism is added on the basis of the first test valve. The flow channel can be opened and closed by repeated pressurization and pressure relief operations during operation, namely, the pressure is applied once, and the ball valve is opened; after pressure relief, opening and locking the ball valve; the flow channel is closed after pressurizing and depressurizing once again. It has the advantage over the first that there is no need to maintain annulus pressure during open well.

The ground can not accurately judge the on/off state of the underground test valve during the operation of the two test valves, particularly under the condition that things cannot be found underground, the current method generally records the on/off flow passage through manual recording, which is very time-consuming and labor-consuming, and once the record is wrong, the operation is failed to cause loss.

The operating pressure of both of the above test valves is very high, typically above 15 MPa. The compression resistance requirement on the manifold is high, and a certain operation risk exists; meanwhile, the selection test valve needs to be provided with a nitrogen chamber to realize the control of the floating piston, the sealing problem of nitrogen is very critical, if the nitrogen leaks, the tool cannot work normally, nitrogen needs to be filled and discharged in the maintenance process of the tool at ordinary times, and the safety problem needs to be considered in the sealing, pressure maintaining and transportation processes of the gas.

Disclosure of Invention

The invention aims to provide an electromechanical liquid integrated test valve, which realizes the opening/closing of a flow passage through the matching of an electrical element and hydraulic oil, abandons the structure of the existing nitrogen chamber, reduces the operation risk and simultaneously avoids the phenomenon of disordered tool operation.

The technical scheme adopted by the invention is that the electromechanical liquid integrated test valve comprises an upper joint and a ball valve outer barrel which are connected with each other, a ball cage is arranged in the ball valve outer barrel, a ball valve assembly is movably connected in the ball cage, one end of the ball cage is connected with a ball seat nipple through a retaining screw, the other end of the ball cage is connected with an actuating mechanism, and the actuating mechanism controls the switching movement of the ball valve assembly;

The actuating mechanism is connected with a power mechanism, the power mechanism provides power for the actuating mechanism to drive the ball valve assembly to move, and one end, far away from the actuating mechanism, of the power mechanism is connected with a lower joint.

The present invention is also characterized in that,

The actuating mechanism comprises an operation outer cylinder connected with the ball valve outer cylinder, an operation mandrel is arranged on the inner side of the operation outer cylinder, and a cavity for a power mechanism to drive the operation mandrel is formed between the operation outer cylinder and the operation mandrel;

One end of the operation mandrel, which is close to the ball valve assembly, is connected with a connection nipple through a jackscrew, the outer side of the connection nipple is far away from the end of the operation mandrel, which is connected with a supporting block through a compression screw, the supporting block is connected with an operation pin for executing the switching movement of the ball valve assembly, and the operation pin is clamped with the ball valve assembly.

The outside of the operation mandrel is provided with a spacing ring which divides the cavity into an upper end and a lower end, and the spacing ring is abutted with the inner wall of the operation outer cylinder.

The connecting nipple, the operating pin and the supporting block are all positioned on the inner side of the ball cage, and a window is formed in the side wall of the ball cage and used for providing a displacement space of the operating pin.

The power mechanism comprises an oil chamber outer cylinder, and the oil chamber outer cylinder is connected with the operation outer cylinder through a transition nipple;

An oil chamber for containing hydraulic oil is formed between the oil chamber outer cylinder and the oil chamber mandrel, one end of the oil chamber is connected with an electric chamber through a pore canal, the electric chamber conveys the hydraulic oil in the oil chamber to the upper end or the lower end of the cavity according to an operation instruction, the movement of the operation mandrel is realized, and one end of the electric chamber, which is far away from the oil chamber, is connected with a lower joint.

An oil filling port is arranged on the outer side of the oil chamber outer cylinder, and hydraulic oil is filled into the oil chamber through the oil filling port.

One end of the oil cavity, which is connected with the electric chamber, is provided with a filter ring.

The electric chamber comprises a hydraulic pump, one side of the hydraulic pump is provided with a motor for providing power for the hydraulic pump, an oil inlet of the hydraulic pump is communicated with an oil cavity through a pore canal, an oil outlet of the hydraulic pump is communicated with a hydraulic reversing valve through an oil supply pore canal, the oil supply pore canal is also communicated with an electromagnetic valve a and an electromagnetic valve b through pore canals, and the electromagnetic valve a and the electromagnetic valve b are used for controlling the switching of the oil supply level of the hydraulic reversing valve;

The oil supply level at one side of the hydraulic reversing valve conveys hydraulic oil to the upper end of the cavity through the pore canal, and simultaneously transfers the hydraulic oil released at the lower end of the cavity to the upper end of the cavity;

the oil supply level at the other side of the hydraulic reversing valve is used for conveying hydraulic oil to the lower end of the cavity through the pore canal, and meanwhile, the hydraulic oil decompressed at the upper end of the cavity is conveyed to the oil return cavity through the oil return pore canal.

The electric room is also provided with a circuit control board and a power supply which are used for receiving the instruction and processing, the circuit control board is connected with the electromagnetic valve a, the electromagnetic valve b and the motor through circuits, and the power supply provides electric energy for the circuit control board, the electromagnetic valve a, the electromagnetic valve b and the motor.

The oil supply pore canal is provided with a one-way valve.

The invention has the advantages that,

(1) According to the electromechanical liquid integrated test valve, oil is injected or discharged to two sides of the operation mandrel spacer ring through the electromagnetic valve a and the electromagnetic valve b in the electric chamber respectively, so that the operation mandrel moves up and down in the pit, and the operation pin is driven to control the rotation of the ball valve assembly, and the on/off of the underground oil gas communication ground flow passage is realized; the nitrogen chamber structure in the existing test valve is abandoned, and the problems of operation risk and sealing existing due to high pressure in the nitrogen chamber are avoided. And meanwhile, the maintenance difficulty of the whole test valve is reduced.

(2) According to the electromechanical liquid integrated test valve, an operation instruction is sent to the circuit control board on the ground, after the circuit control board receives the instruction, the corresponding electromagnetic valve is activated, the hydraulic reversing valve is transposed, hydraulic oil is injected into one side of the operation mandrel spacer ring, and hydraulic oil at the other side of the spacer ring returns to the oil cavity through the pore canal, so that the movement of the operation mandrel is realized; the data recording is carried out when the operation instructions are sent every time, and different electromagnetic valves are adopted when the operation mandrel is controlled to move in different directions, so that the on-off state of the underground runner after each operation can be clearly known, manual recording is not needed, time and labor are saved, and the phenomenon of disordered tool operation is avoided.

Drawings

FIG. 1 is a schematic structural view of an electro-mechanical and hydraulic integrated test valve of the present invention;

FIG. 2 is a schematic diagram of the structure of an actuator in the electromechanical liquid integrated test valve of the present invention;

FIG. 3 is a schematic diagram of the power mechanism of the electromechanical liquid integrated test valve of the present invention;

FIG. 4 is a schematic view of the oil circuit connections in the oil and gas chamber when the operating spindle of the present invention is moved downward;

FIG. 5 is a schematic view of the oil circuit connection in the oil and gas chamber when the operating spindle of the present invention moves upward.

In the drawings, 1. Upper joint, 2. Ball valve outer cylinder, 3. Ball seat nipple, 4. Back screw, 5. Operating pin, 6. Ball valve assembly, 7. Supporting block, 8. Compression screw, 9. Connecting nipple, 10. Jackscrew, 11. Ball cage, 12. Operating mandrel, 13. Operating outer cylinder, 14. Transition nipple, 15. Oil chamber outer cylinder, 16. Oil chamber, 17. Oil chamber mandrel, 18. Filter ring, 19. Electric chamber, 20. Lower joint, 21. Electromagnetic valve a,22. Electromagnetic valve b,23. Hydraulic reversing valve, 24. One-way valve, 25. Hydraulic pump, 26. Motor, 27. Circuit control board.

Detailed Description

The invention will be described in detail below with reference to the drawings and the detailed description.

Example 1

As shown in fig. 1 and2, the electromechanical liquid integrated test valve comprises an upper joint 1 and a ball valve outer cylinder 2 which are connected with each other, a ball cage 11 is arranged in the ball valve outer cylinder 2, a ball valve assembly 6 is movably connected in the ball cage 11, one end of the ball cage 11 is connected with a ball seat nipple 3 through a stop screw 4, the other end of the ball cage 11 is connected with an actuating mechanism, and the actuating mechanism controls the switching movement of the ball valve assembly 6;

the actuating mechanism is connected with a power mechanism, the power mechanism provides power for the actuating mechanism to drive the ball valve assembly 6 to move in a switching mode, and one end, away from the actuating mechanism, of the power mechanism is connected with a lower joint 20.

The actuator includes an operation outer tube 13 connected to the ball valve outer tube 2, an operation mandrel 12 is provided inside the operation outer tube 13, and a cavity for the power mechanism to drive the operation mandrel 12 is formed between the operation outer tube 13 and the operation mandrel 12. The outside of the operation mandrel 12 is provided with a spacer ring dividing the cavity into an upper end and a lower end, the spacer ring is abutted against the inner wall of the operation outer cylinder 13, and the spacer ring and the operation mandrel 12 are integrally formed.

Specifically, the power mechanism achieves the up-and-down displacement movement of the operation mandrel 12 downhole by injecting hydraulic oil into the upper end of the cavity or the lower end of the cavity.

The operation mandrel 12 is close to ball valve assembly 6 one end and is connected with the connection nipple 9 through jackscrew 10, and the connection nipple 9 outside is kept away from operation mandrel 12 end and is connected with supporting shoe 7 through compression screw 8, and supporting shoe 7 is connected with the operating pin 5 that carries out ball valve assembly 6 on-off motion, can see from fig. 2 that operating pin 5 is equipped with the groove structure with the supporting shoe 7 link, and supporting shoe 7 is L type, one end and connection nipple 9 fixed connection, and the other end inserts in the groove structure of operating pin 5, links up connection nipple 9 and operating pin 5, and joint between operating pin 5 and the ball valve assembly 6.

When the operating mandrel 12 is controlled by the power mechanism to move up and down, the operating mandrel 12 drives the connecting nipple 9 and the operating pin 5 to synchronously move up and down due to the action of the jackscrew 10 and the supporting block 7, so that the switching motion of the ball valve assembly 6 is realized.

The connecting nipple 9, the operating pin 5 and the supporting block 7 are all positioned on the inner side of the ball cage 11, and a window is formed in the side wall of the ball cage 11 and used for providing a displacement space of the operating pin 5.

Example 2

The invention relates to an electromechanical liquid integrated test valve, which comprises an upper joint 1 and a ball valve outer cylinder 2 which are connected with each other, wherein a ball cage 11 is arranged in the ball valve outer cylinder 2, a ball valve assembly 6 is movably connected in the ball cage 11, one end of the ball cage 11 is connected with a ball seat nipple 3 through a stop screw 4, the other end of the ball cage is connected with an actuating mechanism, and the actuating mechanism controls the opening and closing movement of the ball valve assembly 6.

The actuator includes an operation outer tube 13 connected to the ball valve outer tube 2, an operation mandrel 12 is provided inside the operation outer tube 13, and a cavity for the power mechanism to drive the operation mandrel 12 is formed between the operation outer tube 13 and the operation mandrel 12. A spacer ring dividing the cavity into an upper end and a lower end is arranged outside the operation mandrel 12, and the spacer ring is abutted against the inner wall of the operation outer cylinder 13.

One end of the operating mandrel 12, which is close to the ball valve assembly 6, is connected with a connecting nipple 9 through a jackscrew 10, the end, which is far away from the operating mandrel 12, of the outer side of the connecting nipple 9 is connected with a supporting block 7 through a compression screw 8, the supporting block 7 is connected with an operating pin 5 for executing the switching motion of the ball valve assembly 6, and the operating pin 5 is clamped with the ball valve assembly 6. The connecting nipple 9, the operating pin 5 and the supporting block 7 are all positioned on the inner side of the ball cage 11, and a window is formed in the side wall of the ball cage 11 and used for providing a displacement space of the operating pin 5.

The actuating mechanism is connected with a power mechanism, and the power mechanism provides power for the actuating mechanism to drive the ball valve assembly 6 to move in a switching mode.

As shown in fig. 3, the power mechanism includes an oil chamber outer tube 15, and the oil chamber outer tube 15 is connected to the operation outer tube 13 through a transition nipple 14.

An oil chamber 16 for containing hydraulic oil is formed between the oil chamber mandrel 17 and the oil chamber mandrel 17 is provided inside the oil chamber outer cylinder 15, an oil filling port is provided outside the oil chamber outer cylinder 15, and hydraulic oil is filled into the oil chamber 16 through the oil filling port.

One end of the oil cavity 16 is connected with an electric chamber 19 through a pore canal, the electric chamber 19 conveys hydraulic oil in the oil cavity 16 to the upper end or the lower end of the cavity according to an operation instruction, the movement of the operation mandrel 12 is realized, and one end of the electric chamber 19 far away from the oil cavity 16 is connected with a lower connector 20.

Preferably, in order to ensure that the hydraulic oil entering the pore canal of the electric chamber 19 does not contain impurities, a filter ring 18 is arranged at the end of the oil cavity 16 connected with the electric chamber 19, so that the impurities in the hydraulic oil are prevented from staying in the electric chamber 19 or the pore canal to cause working faults.

Example 3

The embodiment is based on embodiment 2, as shown in fig. 4, the electric chamber 19 includes a hydraulic pump 25 and a circuit control board 27 for receiving and processing instructions, one side of the hydraulic pump 25 is provided with a motor 26 for providing power for the hydraulic pump 25, an oil inlet of the hydraulic pump 25 is communicated with the oil cavity 16 through a duct, an oil outlet of the hydraulic pump 25 is communicated with the hydraulic reversing valve 23 through an oil supply duct, and a one-way valve 24 is arranged on the oil supply duct to prevent hydraulic oil entering the hydraulic reversing valve 23 from returning to the oil cavity 16.

The oil supply pore canal is also communicated with an electromagnetic valve a21 and an electromagnetic valve b22 through pore canals, the electromagnetic valve a21 and the electromagnetic valve b22 are two-position two-way electromagnetic valves, and the electromagnetic valve a21 and the electromagnetic valve b22 are used for controlling the switching of the oil supply level of the hydraulic reversing valve 23.

Specifically, the electromagnetic valve a21 and the electromagnetic valve b22 are connected with the hydraulic reversing valve 23 through a pore canal, hydraulic oil is injected into the hydraulic reversing valve 23 through the electromagnetic valve a21, and the hydraulic reversing valve 23 is adjusted to an oil supply position for realizing the downward movement of the operation mandrel 12; hydraulic oil is injected into the hydraulic directional valve 23 through the electromagnetic valve b22, and the hydraulic directional valve 23 is adjusted to an oil supply level at which the operation spindle 12 moves upward.

Because the electromagnetic valve a21 and the electromagnetic valve b22 are opposite to the specific oil supply level of the hydraulic reversing valve 23, after each operation instruction is issued, detailed data record is provided, and the current underground runner can be judged to be in an open or closed state according to the opening and closing operation of the electromagnetic valve a21 and the electromagnetic valve b22, so that the situation that the stratum is judged not to generate fluid because the underground runner is not opened is avoided.

The oil supply level at one side of the hydraulic reversing valve 23 conveys hydraulic oil to the upper end of the cavity through a pore canal, and simultaneously transfers the hydraulic oil released at the lower end of the cavity to the upper end of the cavity to realize the downward movement of the operation mandrel 12;

as shown in fig. 5, the oil supply level at the other side of the hydraulic reversing valve 23 conveys hydraulic oil to the lower end of the cavity through a pore canal, and meanwhile, the hydraulic oil decompressed at the upper end of the cavity is conveyed back to the oil cavity 16 through an oil return pore canal, so that the operation mandrel 12 moves upwards.

Specifically, the ground transmits the command pattern, and the circuit control board 27 analyzes the command pattern after receiving the command pattern, generates an operation command, and performs operations such as voltage stabilization, voltage boosting, voltage maintaining, and voltage releasing, which are well known and will not be described in detail herein.

The electric room 19 is also provided with a power supply, the circuit control board 27 is connected with the electromagnetic valve a21, the electromagnetic valve b22 and the motor 26 through lines, and the power supply provides electric energy for the circuit control board 27, the electromagnetic valve a21, the electromagnetic valve b22 and the motor 26.

When the electromechanical liquid integrated test valve works, hydraulic oil is injected into the oil cavity 16 through the oil injection hole on the ground, and then the integrated test valve is lowered to a specified underground working position.

The ground sends an upward movement instruction of the operation mandrel 12 to the circuit control board 27, the circuit control board 27 receives the instruction, the motor 26 drives the hydraulic pump 25 to send hydraulic oil in the oil cavity 16 into the oil supply channel, part of the hydraulic oil enters the electromagnetic valve b22, the electromagnetic valve b22 sends the hydraulic oil into the hydraulic reversing valve 23 to perform oil supply transposition on the hydraulic reversing valve 23, and the electromagnetic valve b22 is closed after the hydraulic reversing valve 23 finishes transposition.

Hydraulic oil in the oil supply pore canal is sent to the lower end of the cavity through the hydraulic reversing valve 23, meanwhile, the pressure is relieved in the upper end of the cavity, the hydraulic oil flows to the hydraulic reversing valve 23 when the hydraulic oil exists in the upper end of the cavity, the hydraulic oil returns to the oil cavity 16 through the oil return pore canal, and the oil pressure of the lower end of the cavity is larger than the oil pressure of the upper end of the cavity at the moment, so that the operating mandrel 12 is pushed to move upwards. The operation mandrel 12 moves upwards to drive the connecting nipple 9 and the operation pin 5 to synchronously move upwards, and the operation pin 5 is clamped with the ball valve assembly 6, so that the operation pin 5 drives the ball valve assembly 6 to rotate when moving upwards, and the opening of the flow passage is completed.

When the flow passage needs to be closed, the ground sends a downward movement instruction of the operation mandrel 12 to the circuit control board 27, the circuit control board 27 receives the instruction, the motor 26 drives the hydraulic pump 25 to send hydraulic oil in the oil cavity 16 into the oil supply pore canal, part of the hydraulic oil enters the electromagnetic valve a21, the electromagnetic valve a21 sends the hydraulic oil into the hydraulic reversing valve 23, the hydraulic reversing valve 23 is used for supplying oil and shifting, and after the hydraulic reversing valve 23 finishes shifting, the electromagnetic valve a21 is closed.

Hydraulic oil in the oil supply pore canal is sent to the upper end of the cavity through the hydraulic reversing valve 23, meanwhile, the hydraulic oil in the lower end of the cavity is decompressed and flows to the hydraulic reversing valve 23, and at the moment, the oil pressure of the upper end of the cavity is larger than that of the lower end of the cavity, so that the operating mandrel 12 is pushed to move downwards.

Meanwhile, the hydraulic reversing valve 23 conveys hydraulic oil at the lower end of the cavity to the upper end of the cavity, so that the downward movement of the operating mandrel 12 is quickened. The operation mandrel 12 moves downwards to drive the connecting nipple 9 and the operation pin 5 to synchronously move downwards, and the operation pin 5 is clamped with the ball valve assembly 6, so that the operation pin 5 drives the ball valve assembly 6 to rotate when moving downwards, and the flow passage is closed.

Claims

1. The electromechanical liquid integrated test valve is characterized by comprising an upper joint (1) and a ball valve outer cylinder (2) which are connected with each other, wherein a ball cage (11) is arranged in the ball valve outer cylinder (2), a ball valve assembly (6) is movably connected in the ball cage (11), one end of the ball cage (11) is connected with a ball seat nipple (3) through a stop screw (4), the other end of the ball cage is connected with an actuating mechanism, and the actuating mechanism controls the switching movement of the ball valve assembly (6);

The actuating mechanism is connected with a power mechanism, the power mechanism provides power for the actuating mechanism to drive the ball valve assembly (6) to move in a switching mode, and one end, far away from the actuating mechanism, of the power mechanism is connected with a lower joint (20).

2. The electromechanical liquid integrated test valve according to claim 1, characterized in that the actuator comprises an operation outer cylinder (13) connected with the ball valve outer cylinder (2), an operation mandrel (12) is arranged inside the operation outer cylinder (13), and a cavity for a power mechanism to drive the operation mandrel (12) is formed between the operation outer cylinder (13) and the operation mandrel (12);

The ball valve assembly is characterized in that one end of the operating mandrel (12) close to the ball valve assembly (6) is connected with a connecting nipple (9) through a jackscrew (10), the outer side of the connecting nipple (9) is far away from the end of the operating mandrel (12) and is connected with a supporting block (7) through a compression screw (8), the supporting block (7) is connected with an operating pin (5) for executing the switching movement of the ball valve assembly (6), and the operating pin (5) is clamped with the ball valve assembly (6).

3. The electromechanical liquid integrated test valve according to claim 2, characterized in that a spacer ring dividing the cavity into an upper end and a lower end is provided on the outer side of the operation spindle (12), and the spacer ring abuts against the inner wall of the operation outer cylinder (13).

4. An electro-mechanical and hydraulic integrated testing valve according to claim 3, characterized in that the connecting nipple (9), the operating pin (5) and the supporting block (7) are all located inside the ball cage (11), and the side wall of the ball cage (11) is provided with a window for providing a displacement space for the operating pin (5).

5. The electromechanical-hydraulic integrated test valve according to claim 3 or 4, characterized in that the power mechanism comprises an oil chamber outer cylinder (15), the oil chamber outer cylinder (15) being connected with an operating outer cylinder (13) by means of a transition nipple (14);

An oil chamber (16) for containing hydraulic oil is formed between the oil chamber outer cylinder (15) and the oil chamber mandrel (17), one end of the oil chamber (16) is connected with an electric chamber (19) through a pore canal, the electric chamber (19) conveys the hydraulic oil in the oil chamber (16) to the upper end or the lower end of the cavity according to an operation instruction, movement of the operation mandrel (12) is achieved, and one end, far away from the oil chamber (16), of the electric chamber (19) is connected with a lower connector (20).

6. The electromechanical-hydraulic integrated test valve according to claim 5, characterized in that an oil filling port is opened on the outside of the oil chamber outer cylinder (15), through which hydraulic oil is filled into the oil chamber (16).

7. The electromechanical liquid integrated test valve according to claim 5, characterized in that the end of the oil chamber (16) connected to the electric chamber (19) is provided with a filter ring (18).

8. The electromechanical liquid integrated test valve according to claim 5, characterized in that the electric chamber (19) comprises a hydraulic pump (25), a motor (26) for powering the hydraulic pump (25) is arranged at one side of the hydraulic pump (25), an oil inlet of the hydraulic pump (25) is communicated with the oil cavity (16) through a duct, an oil outlet of the hydraulic pump (25) is communicated with a hydraulic reversing valve (23) through an oil supply duct, the oil supply duct is also communicated with an electromagnetic valve a (21) and an electromagnetic valve b (22) through ducts respectively, and the electromagnetic valve a (21) and the electromagnetic valve b (22) are used for controlling the switching of oil supply level of the hydraulic reversing valve (23);

The oil supply level at one side of the hydraulic reversing valve (23) conveys hydraulic oil to the upper end of the cavity through a pore canal, and meanwhile, the hydraulic oil decompressed at the lower end of the cavity is transferred to the upper end of the cavity;

The oil supply level at the other side of the hydraulic reversing valve (23) conveys hydraulic oil to the lower end of the cavity through a pore canal, and meanwhile, the hydraulic oil decompressed at the upper end of the cavity is conveyed to the oil return cavity (16) through an oil return pore canal.

9. The electromechanical liquid integrated test valve according to claim 8, characterized in that a circuit control board (27) for receiving instructions and processing and a power supply are further arranged in the electric chamber (19), the circuit control board (27) is connected with the electromagnetic valve a (21), the electromagnetic valve b (22) and the motor (26) through lines, and the power supply supplies electric power for the circuit control board (27), the electromagnetic valve a (21), the electromagnetic valve b (22) and the motor (26).

10. The electro-mechanical and hydraulic integrated testing valve of claim 8, wherein the oil supply port is provided with a one-way valve (24).