CN213688524U

CN213688524U - Protection device for high-pressure water injection well test

Info

Publication number: CN213688524U
Application number: CN202023223853.1U
Authority: CN
Inventors: 李延彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-07-13
Anticipated expiration: 2030-12-28

Abstract

The utility model relates to a protection device is used in test of high pressure water injection well, including the test end cap, the left end face of test end cap is provided with the pressure release pipe, the right-hand member of pressure release pipe passes the test end cap, the left end of pressure release pipe is provided with the relief valve, be provided with the rupture disk on the relief valve, the left end face axial threaded connection of test end cap has the trace, the left end axial of trace is fixed with the clamp plate, the buffering box has been cup jointed in the outside of clamp plate, clamp plate and buffering box sliding connection, be provided with the cushion chamber in the buffering box, the cushion chamber is provided with the baffle that can follow the horizontal slip along vertical direction, the baffle falls into first cushion chamber and second cushion chamber with the cushion chamber, set up the spring in the first cushion chamber, be provided with in. The design of the pressure release valve and the rupture disk can reduce the damage of pressure to the test equipment through the damage of the rupture disk; the design of buffer box, accessible spring and second cushion chamber cushion the test in-process pressure, reach the purpose of shockproof buffering.

Description

Protection device for high-pressure water injection well test

Technical Field

The utility model relates to a test equipment technical field, more specifically say, relate to a protection device is used in test of high pressure water injection well.

Background

Water injection wells are wells used to inject water into oil formations. In the process of oil field development, water is injected into an oil reservoir through a special water injection well, so that the pressure of an oil layer is maintained or recovered, the oil reservoir has stronger driving force, and the exploitation rate and the recovery rate of the oil reservoir are improved.

At present, the commonly used flowmeter test equipment in the water injection well for monitor the flow of water injection well, but the flowmeter commonly used now lacks shockproof buffer, receives highly compressed influence in the monitoring process very easily, causes the flowmeter to damage easily, the utility model discloses a new solution is proposed to above problem.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a protection device is used in test of high-pressure water injection well to solve the technical problem who mentions in the background art.

In order to solve the above problems, the utility model adopts the following technical proposal.

The protection device for the high-pressure water injection well test comprises a test plug, wherein a pressure relief pipe is arranged on the left end face of the test plug, the right end of the pressure relief pipe passes through the test plug, a pressure relief valve is arranged at the left end of the pressure relief pipe, a rupture disc is arranged on the pressure relief valve, a linkage rod is axially and threadedly connected with the left end face of the test plug, a pressing plate is axially and fixedly arranged at the left end of the linkage rod, a buffer box is sleeved outside the pressing plate and is slidably connected with the buffer box, an opening is arranged at the right end of the buffer box, a pressing cap is threadedly connected onto the opening, a buffer cavity is arranged in the buffer box and is communicated with the buffer cavity, a partition plate capable of sliding left and right is arranged in the buffer cavity in the vertical direction, the buffer cavity is divided into a first buffer cavity and a second buffer cavity by the partition plate, the left end of the linkage rod passes through the pressing cap, the spring is arranged in the first buffer cavity, the left end of the spring is fixed on the partition plate, the other end of the spring is attached to the pressing plate, and the dissolving liquid and carbon dioxide gas are arranged in the second buffer cavity.

In this embodiment, because of the pressure release pipe, the relief valve, the design of rupture disk and buffering box, like this, the operator can install suitable position with the device, then be connected to test the end cap on the test equipment, when the pressure in the water injection well is too high, can drive the trace through the test end cap earlier and slide along the first cushion chamber that drives the clamp plate along buffering box, and through compression spring, compress the second cushion chamber and come the impact of buffering test in-process pressure to test the end cap, compress the in-process in second cushion chamber, the oxidation in the second cushion chamber is dissolved in dissolving the liquid, thereby reach and reduce the second cushion chamber, through the impact of spring and second cushion chamber greatly reduced test in-process pressure to test equipment, when test pressure exceeded the limit, the damage of accessible rupture disk passes through the relief valve release with pressure, prevent that too big damage of pressure from testing the end cap. The design of the pressure release valve and the rupture disk can reduce the damage of pressure to the test equipment through the damage of the rupture disk; in addition, the design of the buffer box can buffer the pressure in the test process through the spring and the second buffer cavity, so that the aim of shockproof buffering is fulfilled, the service cycle of the test equipment is prolonged, and the test efficiency is improved.

Additionally, according to the utility model discloses protection device is used in test of high pressure water injection well can also have following additional technical characterstic:

according to the utility model discloses an embodiment, be provided with the connecting plate on the lateral wall of buffering box, seted up bolted connection hole on the connecting plate.

According to the utility model discloses an embodiment, the connecting plate is provided with a plurality ofly.

According to the utility model discloses an embodiment, the outside of pressing the cap is provided with indicates the indent.

According to the utility model discloses an embodiment, indicate to be provided with the friction stripe in the indent.

According to the utility model discloses an embodiment, the injection hole has been seted up to the left end of buffering box, the injection hole with second cushion chamber intercommunication, injection hole female connection has the sealing plug.

According to the utility model discloses an embodiment, hexagonal type recess has been seted up to the left end face of sealing plug.

According to the utility model discloses an embodiment, the right-hand member face of pressing the cap is provided with the rubber pad.

According to the utility model discloses an embodiment, the left end face of rubber pad is provided with the shock attenuation arch.

According to an embodiment of the present invention, the dissolving solution is a sodium carbonate solution.

Drawings

Fig. 1 is a schematic structural view of a protection device for a high-pressure water injection well test according to a preferred embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of the area A in FIG. 1;

fig. 3 is a schematic structural view of the press cap.

The reference numbers in the figures illustrate:

1. testing the plug; 2. a pressure relief pipe; 3. a pressure relief valve; 4. a rupture disk; 5. a linkage rod; 6. pressing a plate; 7. a buffer box; 8. an opening; 9. pressing the cap; 10. a partition plate; 11. a first buffer chamber; 12. a second buffer chamber; 13. a spring; 14. dissolving liquid; 15. carbon dioxide gas; 16. a connecting plate; 17. connecting holes of bolts; 18. a finger pressure groove; 19. rubbing the stripes; 20. an injection hole; 21. a sealing plug; 22. a hexagonal groove; 23. a rubber pad; 24. shock attenuation arch.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1 to 3, the protection device for testing a high-pressure water injection well according to the embodiment of the present invention comprises a testing plug 1, a pressure relief pipe 2 is disposed on a left end surface of the testing plug 1, a right end of the pressure relief pipe 2 passes through the testing plug 1, a pressure relief valve 3 is disposed on a left end of the pressure relief pipe 2, a rupture disk 4 is disposed on the pressure relief valve 3, a linkage rod 5 is axially and threadedly connected to the left end surface of the testing plug 1, a pressure plate 6 is axially and fixedly disposed on the left end of the linkage rod 5, a buffer box 7 is sleeved on an outer side of the pressure plate 6, the pressure plate 6 is slidably connected to the buffer box 7, an opening 8 is disposed on a right end of the buffer box 7, a pressure cap 9 is threadedly connected to the opening 8, a buffer cavity is disposed in the buffer box 7, the opening 8 is communicated with the buffer cavity, a partition plate 10 capable of sliding left and right is disposed in the buffer, the left end of trace 5 passes and presses cap 9, opening 8, and the one end of trace 5 and clamp plate 6 all are located first cushion chamber 11, sets up spring 13 in the first cushion chamber 11, and the left end of spring 13 is fixed on baffle 10, and the other end of spring 13 and clamp plate 6 laminating are provided with solution 14 and carbon dioxide gas 15 in the second cushion chamber 12.

In the embodiment, due to the design of the pressure relief pipe 2, the pressure relief valve 3, the rupture disk 4 and the buffer box 7, an operator can install the device at a proper position, then connect the testing plug 1 to the testing equipment, when the pressure in the water injection well is too high, the interlocking rod 5 can be driven by the testing plug 1 to drive the pressing plate 6 to slide along the first buffer cavity 11 of the buffer box 7, and the impact of the pressure on the testing plug 1 in the testing process can be buffered by compressing the second buffer cavity 12 through the compression spring 13, in the process of compressing the second buffer cavity 12, the dioxide in the second buffer cavity 12 is dissolved in the dissolving liquid 14, so that the second buffer cavity 12 is reduced, the impact of the pressure on the testing equipment in the testing process can be greatly reduced through the spring 13 and the second buffer cavity 12, when the testing pressure exceeds the limit, the pressure can be released through the rupture disk 4 by the damage, the test plug 1 is prevented from being damaged due to excessive pressure. The pressure release valve 3 and the rupture disk 4 are designed, so that the damage of pressure to the test equipment can be reduced through the damage of the rupture disk 4; in addition, the design of the buffer box 7 can buffer the pressure in the test process through the spring 13 and the second buffer cavity 12, so that the aim of shockproof buffering is achieved, the service cycle of the test equipment is prolonged, and the test efficiency is improved.

Furthermore, a connecting plate 16 is arranged on the side wall of the buffer box 7, and a bolt connecting hole 17 is formed in the connecting plate 16. The attachment plate 16 is designed to facilitate securing the device in a desired position for use.

Further, the connection plate 16 is provided in plurality. Through the design, the connecting point of the device and external equipment can be increased, and the device is prevented from sliding in the use process.

Further, a finger pressing groove 18 is arranged on the outer side of the pressing cap 9. The design of the finger pressing groove 18 is convenient for an operator to press the finger pressing groove 18 by a palm, so that the pressing cap 9 can be assembled and disassembled.

Further, friction stripes 19 are arranged in the finger grooves 18. The friction strips 19 are designed to increase the friction between the palm of the operator's hand and the finger grooves 18.

Further, an injection hole 20 is formed at the left end of the buffer box 7, the injection hole 20 is communicated with the second buffer cavity 12, and a sealing plug 21 is connected to the injection hole 20 through an internal thread. The injection hole 20 is designed to facilitate the injection of the solution 14 into the second buffer chamber 12 through the injection hole 20.

Further, a hexagonal groove 22 is formed in the left end surface of the sealing plug 21. The hexagonal recess 22 is designed to facilitate removal of the plug 21 by insertion of an external hex driver into the hexagonal recess 22.

Further, a rubber pad 23 is disposed on the right end face of the press cap 9. The rubber pad 23 is designed to prevent the test plug 1 from impacting and damaging the press cap 9.

Further, a shock absorption bulge 24 is arranged on the left end surface of the rubber pad 23. Through the design, the effects of buffering and shock absorption can be achieved.

Further, the dissolving solution 14 is a sodium carbonate solution. By the above design, the carbon dioxide gas 15 can be more favorably introduced into the dissolving solution 14.

The working process of the utility model is as follows:

an operator can install the device at a proper position, then the testing plug 1 is connected to testing equipment, when the pressure in the water injection well is too high, the interlocking rod 5 can be driven by the testing plug 1 to slide along the first buffer cavity 11 which drives the pressing plate 6 along the buffer box 7, the impact of the pressure on the testing plug 1 in the testing process can be buffered by compressing the second buffer cavity 12 through the compression spring 13, the impact of the pressure on the testing plug 1 in the testing process can be buffered by compressing the second buffer cavity 12, in the process of compressing the second buffer cavity 12, the dioxide in the second buffer cavity 12 is dissolved in the dissolving liquid 14, so that the second buffer cavity 12 is reduced, the impact of the pressure on the testing equipment in the testing process can be greatly reduced through the spring 13 and the second buffer cavity 12, when the testing pressure exceeds the limit, the pressure can be released through the pressure release valve 3 through the damage of the rupture disk 4, and the testing. The pressure release valve 3 and the rupture disk 4 are designed, so that the damage of pressure to the test equipment can be reduced through the damage of the rupture disk 4; in addition, the design of the buffer box 7 can buffer the pressure in the test process through the spring 13 and the second buffer cavity 12, so that the aim of shockproof buffering is achieved, the service cycle of the test equipment is prolonged, and the test efficiency is improved.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a protection device is used in test of high pressure water injection well, includes the test end cap, its characterized in that: the left end face of the testing plug is provided with a pressure relief pipe, the right end of the pressure relief pipe penetrates through the testing plug, the left end of the pressure relief pipe is provided with a pressure relief valve, the pressure relief valve is provided with a rupture disk, the left end face of the testing plug is axially and threadedly connected with a linkage rod, the left end of the linkage rod is axially and fixedly provided with a pressure plate, the outer side of the pressure plate is sleeved with a buffer box, the pressure plate is in sliding connection with the buffer box, the right end of the buffer box is provided with an opening, the opening is in threaded connection with a pressure cap, a buffer cavity is arranged in the buffer box and is communicated with the buffer cavity, a partition plate capable of sliding left and right is arranged in the buffer cavity along the vertical direction, the buffer cavity is divided into a first buffer cavity and a second buffer cavity by the partition plate, the left end of the linkage rod penetrates through the pressure cap and the opening, one end of the linkage rod and the pressure, the second buffer cavity is internally provided with a dissolving liquid and carbon dioxide gas.

2. The protection device for testing the high-pressure water injection well according to claim 1, wherein: the side wall of the buffer box is provided with a connecting plate, and the connecting plate is provided with a bolt connecting hole.

3. The protection device for testing the high-pressure water injection well according to claim 2, wherein: the connecting plate is provided with a plurality of.

4. The protection device for testing the high-pressure water injection well according to claim 1, wherein: and a finger pressure groove is formed in the outer side of the pressure cap.

5. The protection device for testing the high-pressure water injection well according to claim 4, is characterized in that: friction stripes are arranged in the finger pressing grooves.

6. The protection device for testing the high-pressure water injection well according to claim 1, wherein: an injection hole is formed in the left end of the buffer box and communicated with the second buffer cavity, and a sealing plug is connected to the injection hole in a threaded mode.

7. The protection device for testing the high-pressure water injection well according to claim 6, wherein: and a hexagonal groove is formed in the left end face of the sealing plug.

8. The protection device for testing the high-pressure water injection well according to claim 1, wherein: and a rubber pad is arranged on the right end face of the pressing cap.

9. The protection device for testing the high-pressure water injection well according to claim 8, wherein: and the left end surface of the rubber pad is provided with a shock absorption bulge.

10. The protection device for testing the high-pressure water injection well according to claim 1, wherein: the dissolving solution adopts a sodium carbonate solution.