CN220522774U - Plunger gas lift drainage leakage detection device - Google Patents
Plunger gas lift drainage leakage detection device Download PDFInfo
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- CN220522774U CN220522774U CN202322209899.5U CN202322209899U CN220522774U CN 220522774 U CN220522774 U CN 220522774U CN 202322209899 U CN202322209899 U CN 202322209899U CN 220522774 U CN220522774 U CN 220522774U
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- pipe
- air
- plunger
- lifting
- valve
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- 238000001514 detection method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 238000003860 storage Methods 0.000 claims abstract description 20
- 238000005303 weighing Methods 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 12
- 239000007789 gas Substances 0.000 description 24
- 230000000694 effects Effects 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 210000003437 trachea Anatomy 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000002343 natural gas well Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model belongs to the technical field of underground plunger gas lift drainage of oil and gas fields, and particularly discloses a plunger gas lift drainage leakage detection device which comprises a four-way pipe, a gas storage tank, an air compressor and a weighing unit, wherein the four ends of the four-way pipe are respectively communicated with a lifting pipe, a water supply pipe, a water outlet pipe and a gas pipe; the top end of the lifting pipe is communicated with a return pipe, the return pipe is communicated with a drain pipe, a drain valve is connected between the drain pipe and the return pipe, a water supply valve is connected between the water supply pipe and the four-way pipe, an air inlet valve is connected between the air pipe and the four-way pipe, a water outlet valve is connected between the water outlet pipe and the four-way pipe, and the weighing unit is positioned below the water outlet pipe; the air pipe is communicated with the air outlet of the air storage tank, an air valve is connected between the air pipe and the air outlet of the air storage tank, and the air storage tank is communicated with the air inlet and the air outlet of the air compressor; the lifting tube is internally provided with a plunger, and a gap is reserved between the plunger and the lifting tube. The utility model can detect the leakage of the plunger in the gas lift drainage process under different conditions.
Description
Technical Field
The utility model relates to the technical field of underground plunger gas lift drainage of oil and gas fields, in particular to a plunger gas lift drainage leakage detection device.
Background
The plunger gas lift is used for reducing and stopping the production of the natural gas well because a large amount of aqueous solution is formed at the bottom of the well in the gas production process of the natural gas well, and natural gas overflow is influenced. The plunger gas lift is to use plunger to form sealing surface between gas and water, and use high pressure natural gas at bottom of well to lift plunger and water above plunger to achieve drainage effect. However, in practical application, because a gap exists between the plunger and the oil pipe, water at the upper end of the plunger can slide from the gap to the lower end in the gas lifting process of the plunger, so that the water lifting effect is not ideal.
In practical engineering application, plungers are various in variety and different in length, and the lifting effect is also different. Aiming at the fact that different plungers do not have quantized leakage data at present, on-site operators basically perform construction operation based on experience, and therefore lifting failure is easy to cause misjudgment for managers.
Disclosure of Invention
The utility model provides a plunger gas lifting drainage leakage detection device, and aims to detect leakage in the plunger lifting drainage process.
The utility model is realized by the following technical scheme: the plunger gas lift drainage leakage detection device comprises a four-way pipe, a gas storage tank, an air compressor and a weighing unit, wherein the four ends of the four-way pipe are respectively communicated with a lifting pipe, a water supply pipe, a water outlet pipe and a gas pipe, the lifting pipe is vertically upwards arranged, and the water outlet pipe is vertically downwards arranged;
the top end of the lifting pipe is communicated with a return pipe, the return pipe is communicated with a drain pipe, a drain valve is connected between the drain pipe and the return pipe, a water supply valve is connected between the water supply pipe and the four-way pipe, an air inlet valve is connected between the air pipe and the four-way pipe, a water outlet valve is connected between the water outlet pipe and the four-way pipe, and the weighing unit is positioned below the water outlet pipe;
the air pipe is communicated with the air outlet of the air storage tank, an air valve is connected between the air pipe and the air outlet of the air storage tank, and the air storage tank is communicated with the air inlet and the air outlet of the air compressor;
the lifting tube is internally provided with a plunger, and a gap is reserved between the plunger and the lifting tube.
Compared with the prior art, the utility model has the following advantages and beneficial effects: in this scheme, through the delivery pipe to the intraductal injection water of lifting, then fill high-pressure gas and make plunger and water lift together in to the pipeline through air compressor machine and gas holder, because of having the clearance between plunger and the lifting tube, there is some water along the clearance whereabouts between plunger and the lifting tube at the in-process of lifting.
When the plunger reaches the top of the lifting tube and water is discharged, the air inlet valve is closed, the plunger falls down, the water outlet valve is opened, water in the lifting tube flows into the weighing unit from the water outlet pipe, when the water surface is at the lower end of the plunger, the water outlet valve is closed, and the water flowing out is water lost by the plunger. The weighing unit is used for weighing, so that the water quantity lost by the plunger in the lifting process can be obtained.
Further, a buffer spring is arranged in the lifting tube and positioned at the lower part of the lifting tube, and the plunger is positioned at the top of the buffer spring. This scheme can play buffering protection's effect when the plunger lifts the back whereabouts, bumps into bad four-way pipe when avoiding the plunger whereabouts, and can play the effect of protection plunger itself.
Further, an electric valve is connected between the lifting pipe and the return pipe.
The pipeline of lifting pipe can be opened and closed to the motorised valve in this scheme, can temporarily close the route between back flow and the lifting pipe before lifting like this to be convenient for fill certain high-pressure gas earlier, can take certain pressure after the pipeline of lifting pipe one side fills compressed air, be convenient for carry out smooth lifting drainage later stage.
Further, the return pipe is arranged vertically.
So set up the more smooth drainage of later stage of being convenient for.
Further, a connecting hose is connected between the return pipe and the lifting pipe.
The setting of coupling hose can play the connection effect between back flow and the lifting tube, and coupling hose has certain compliance, makes things convenient for the connection between back flow and the lifting tube more, and can change the position of back flow and lifting tube in a flexible way, and is more practical.
Further, an opening regulator is installed on the drain valve, and the opening regulator is used for regulating the opening of the drain valve.
The aperture regulator in the scheme can ensure that each test is at the same aperture, and ensure the accuracy of experimental data.
Further, the weighing unit comprises an electronic scale and a water tank, wherein the water tank is positioned on the electronic scale, and the water tank is positioned under the water outlet pipe.
The weighing unit in this scheme adopts electronic scale and basin complex mode, in opening the water outlet valve can make the rivers of gas lift drainage in-process to the basin to through the electronic scale weighing, can survey the leakage volume of gas lift drainage in-process.
Further, the lifting tube is a transparent tube.
The arrangement is convenient for observing the gas lifting process in the lifting tube and observing the injected water quantity.
Further, scale marks are arranged on the lifting tube.
It is convenient to reference the number of injections.
Further, the drain pipe, the water supply pipe and the air pipe are all flexible pipes.
The position of the drain pipe, the water supply pipe and the air pipe can be conveniently and flexibly changed, so that the device is suitable for different installation conditions.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model. In the drawings:
FIG. 1 is a schematic diagram of an embodiment of a plunger gas lift drainage leak detection device according to the present utility model.
In the drawings, the reference numerals and corresponding part names:
drain pipe 1, back flow pipe 2, motorised valve 3, coupling hose 4, lifting tube 5, plunger 6, buffer spring 7, supply valve 8, drain valve 9, four-way pipe 10, delivery pipe 11, outlet valve 12, basin 13, electronic scale 14, trachea 15, pneumatic valve 16, gas holder 17, air compressor 18, admission valve 19, outlet pipe 20.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.
As shown in fig. 1, this embodiment provides a plunger 6 gas lift drainage detection device, including four-way pipe 10, gas holder 17, air compressor 18 and weighing unit, four ends of four-way pipe 10 are connected respectively with lift pipe 5, delivery pipe 11, outlet pipe 20 and trachea 15, and wherein lift pipe 5 sets up vertically upwards, and outlet pipe 20 sets up vertically downwards, and lift pipe 5 and outlet pipe 20 connect respectively in the upper portion and the lower part of four-way pipe 10 in this embodiment, and trachea 15 is located the right part of four-way pipe 10, and delivery pipe 11 is located the left part of trachea 15.
The top intercommunication of lifting tube 5 has back flow 2, and back flow 2 intercommunication has drain pipe 1, and drain pipe 1 communicates with the bottom of back flow 2 each other, is connected with drain valve 9 between drain pipe 1 and the back flow 2, installs the aperture regulator on the drain valve 9 in this embodiment, and this aperture regulator is prior art for the aperture of adjusting drain valve 9, the opening size of regulation control drain valve 9 promptly.
In the embodiment, the return pipe 2 is vertically arranged and is parallel to the lifting pipe 5, a connecting hose 4 is connected between the return pipe 2 and the lifting pipe 5, and the return pipe 2 and the lifting pipe 5 are communicated through the connecting hose 4. An electric valve 3 is connected between the lifting pipe 5 and the return pipe 2, in this embodiment the electric valve 3 is located between the return pipe 2 and the connection hose 4, and the electric valve 3 is used for closing the pipeline on the right side of the connection hose 4.
The water supply valve 8 is connected between the water supply pipe 11 and the four-way pipe 10, the air inlet valve 19 is connected between the air pipe 15 and the four-way pipe 10, the water outlet valve 12 is connected between the water outlet pipe 20 and the four-way pipe 10, the weighing unit is located below the water outlet pipe 20, the weighing unit in the embodiment comprises an electronic scale 14 and a water tank 13, the water tank 13 is located on the electronic scale 14, and the water tank 13 is located right below the water outlet pipe 20.
The air pipe 15 is communicated with an air outlet of the air storage tank 17, an air valve 16 is connected between the air pipe 15 and the air outlet of the air storage tank 17, and the air storage tank 17 is communicated with an air inlet and an air outlet of the air compressor 18. In this embodiment, the drain pipe 1, the water supply pipe 11 and the air pipe 15 are all hoses.
A plunger 6 is arranged in the lifting tube 5, and a gap is formed between the plunger 6 and the lifting tube 5. In this embodiment, the lifting tube 5 is a transparent tube, and scale marks are provided on the lifting tube 5.
In this embodiment, the buffer spring 7 is disposed in the lifting tube 5 and at the lower portion thereof, the plunger 6 is disposed at the top of the buffer spring 7, that is, the buffer spring 7 and the plunger 6 are put into the lifting tube 5 in advance, the buffer spring 7 can play a role in buffering the falling of the plunger 6, the plunger 6 and the four-way tube 10 are prevented from generating direct impact, and the service lives of the four-way tube 10 and the plunger 6 are prolonged. The pipelines and valves used in the test can bear the pressure and impact generated in the test process. The air displacement of the air compressor 18 can meet the test requirement.
The specific implementation process is as follows: the experimental principle of the device is mainly that the plunger 6 forms a separation surface between water and gas in the ascending process to prevent liquid from slipping, but a gap is arranged between the plunger 6 and a pipeline, and part of water can flow downwards from the gap. The device can meet the requirements of measuring the external dimensions of the plunger 6, namely the length, the diameter, the weight and different kinds of plungers, and the leakage under different water lifting amounts and pressure conditions.
Before the test starts, the transparent lifting tube 5 is detached, and the plunger 6 to be tested and the buffer spring 7 are placed in the transparent lifting tube 5. After the four-way pipe 10 is put in, the lower end of the lifting pipe 5 is installed. The air valve 16 at the outlet of the air storage tank 17 is closed, the air compressor 18 is started, and after the pressure in the air storage tank 17 reaches 0.8MPa, the air compressor 18 is stopped.
When the test starts, the drain valve 9 is opened, the water supply valve 8 at the left end of the four-way pipe 10 is opened to fill water into the transparent lifting pipe 5 to set scales, and if the water exceeds the set scales, the water outlet valve 12 at the bottom of the four-way pipe 10 can be opened to drain water.
Closing the drain valve 9 at the bottom of the return pipe 2, opening the air valve 16 at the air outlet of the air storage tank 17, slowly opening the air inlet valve 19 at the right end of the four-way pipe 10, and filling compressed air into the lifting pipe 5, wherein in the process, the electric valve 3 is closed, so that a passage between the return pipe 2 and the lifting pipe 5 is closed, a certain amount of high-pressure air is conveniently filled firstly, a pipeline at one side of the lifting pipe 5 can have a certain pressure after the compressed air is filled, the pressure in the lifting pipe 5 and the pressure in the air storage tank 17 are balanced, and smooth lifting and drainage are conveniently carried out later.
The opening regulator is designed on the drain valve 9, so that the same opening can be ensured in each test. The water discharge valve 9 at the bottom of the return pipe 2 is opened to a set opening degree, the electric valve 3 is opened, the pressure at the upper ends of the return pipe 2 and the lifting pipe 5 is reduced, and at the moment, the plunger 6 is pushed to lift together with the water at the upper end of the plunger 6 by increasing the flow rate of compressed air in the air storage tank 17, and part of the water falls along a gap between the plunger 6 and the lifting pipe 5. After the plunger 6 reaches the top of the lifting tube 5 and water is drained, an air inlet valve 19 at the right end of the four-way pipe 10 is closed, and the plunger 6 falls onto the buffer spring 7.
The water outlet valve 12 at the bottom of the four-way pipe 10 is opened, so that water in the lifting pipe 5 flows into the water tank 13 through the water outlet pipe 20, when the water surface in the lifting pipe 5 falls to the lower end of the plunger 6, the water outlet valve 12 at the bottom of the four-way pipe 10 is closed, and the water is weighed through the electronic scale 14, so that the water quantity lost by the plunger 6 in the lifting process can be obtained through the scale.
In this embodiment, by changing the flow rate of the compressed air and the water level of the compressed air injected into the lifting tube 5, the leakage amount of the plunger 6 in the lifting and draining process under different conditions can be detected in the same device. And the device in this embodiment is simple and easy to operate in the detection process.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. The plunger gas lift drainage leakage detection device is characterized by comprising a four-way pipe, a gas storage tank, an air compressor and a weighing unit, wherein the four ends of the four-way pipe are respectively communicated with a lifting pipe, a water supply pipe, a water outlet pipe and a gas pipe, the lifting pipe is vertically upwards arranged, and the water outlet pipe is vertically downwards arranged;
the top end of the lifting pipe is communicated with a return pipe, the return pipe is communicated with a drain pipe, a drain valve is connected between the drain pipe and the return pipe, a water supply valve is connected between the water supply pipe and the four-way pipe, an air inlet valve is connected between the air pipe and the four-way pipe, a water outlet valve is connected between the water outlet pipe and the four-way pipe, and the weighing unit is positioned below the water outlet pipe;
the air pipe is communicated with the air outlet of the air storage tank, an air valve is connected between the air pipe and the air outlet of the air storage tank, and the air storage tank is communicated with the air inlet and the air outlet of the air compressor;
the lifting tube is internally provided with a plunger, and a gap is reserved between the plunger and the lifting tube.
2. The plunger gas lift drainage leakage detection device according to claim 1, wherein a buffer spring is arranged in the lifting tube and positioned at the lower part of the lifting tube, and the plunger is positioned at the top of the buffer spring.
3. The plunger gas lift drainage leakage detection device according to claim 1, wherein an electric valve is connected between the lifting pipe and the return pipe.
4. The plunger gas lift drain leakage detection device of claim 1, wherein the return pipe is vertically disposed.
5. The plunger gas lift drainage leak detection apparatus of claim 4, wherein a connecting hose is connected between the return pipe and the lifting pipe.
6. The plunger gas lift drain leakage detection device according to claim 1, wherein an opening regulator is mounted on the drain valve, and the opening regulator is used for regulating the opening of the drain valve.
7. The plunger gas lift drain leakage detection device of claim 1, wherein the weighing unit comprises an electronic scale and a water tank, the water tank is located on the electronic scale, and the water tank is located directly below the water outlet pipe.
8. The plunger gas lift drainage leak detection apparatus of claim 1 wherein the lift tube is a transparent tube.
9. The plunger gas lift drainage loss detection device according to claim 8, wherein graduation marks are arranged on the lifting tube.
10. The plunger gas lift drainage leakage detection device according to claim 1, wherein the drain pipe, the water supply pipe and the air pipe are all hoses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322209899.5U CN220522774U (en) | 2023-08-16 | 2023-08-16 | Plunger gas lift drainage leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322209899.5U CN220522774U (en) | 2023-08-16 | 2023-08-16 | Plunger gas lift drainage leakage detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220522774U true CN220522774U (en) | 2024-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322209899.5U Active CN220522774U (en) | 2023-08-16 | 2023-08-16 | Plunger gas lift drainage leakage detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220522774U (en) |
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2023
- 2023-08-16 CN CN202322209899.5U patent/CN220522774U/en active Active
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