CN210599358U - Hydraulic feedback pump capable of preventing air lock - Google Patents
Hydraulic feedback pump capable of preventing air lock Download PDFInfo
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- CN210599358U CN210599358U CN201921114927.2U CN201921114927U CN210599358U CN 210599358 U CN210599358 U CN 210599358U CN 201921114927 U CN201921114927 U CN 201921114927U CN 210599358 U CN210599358 U CN 210599358U
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- water nozzle
- hydraulic feedback
- pump
- air lock
- feedback pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003698 laser cutting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
A hydraulic feedback pump capable of preventing air lock. The problem of current hydraulic feedback pump easily produce the airlock phenomenon when the produced fluid contains low water, gas content is high is mainly solved. The method is characterized in that: the coupling is characterized in that a water nozzle hole is formed in the side wall of the middle of the coupling main body (1), two layers of filter screens (2) are arranged on the end face of the water nozzle hole, a water nozzle (3) is arranged between the two layers of filter screens (3), a sealing gasket (5) is arranged outside the outer layer of filter screen (2), and a water nozzle seat (4) is connected to the water nozzle hole outside the sealing gasket (5). The hydraulic feedback pump capable of preventing air lock can greatly reduce the air lock phenomenon, and achieve the purpose of improving the pump efficiency of the produced liquid of the gas-containing well.
Description
Technical Field
The utility model relates to an oil field, a hydraulic feedback pump that can prevent airlock specifically says so.
Background
The hydraulic feedback pump used in the same well injection and production technology for the high water content oil field is characterized in that two valves of an oil well pump move together with a plunger in the process of an up stroke and a down stroke, as shown in figure 2, the volume of an annulus between an upper plunger 8 and a lower pump barrel 9 is extruded by a lower plunger 12 in the process of the up stroke, and liquid in the annulus is discharged into an oil pipe. As the same well injection-production technology needs to adjust the displacement proportion of the upper production pump and the lower injection pump respectively, the upper production pump adopts a structure of a cutting groove discharge groove 13 at the lower part of the lower pump barrel 9, and the effective stroke and the displacement of the production pump are changed by changing the initial position of the lower plunger 12. Because the effective stroke is reduced, the volume of the annular space between the upper plunger 8 and the lower pump barrel 9 is reduced, and when the produced liquid contains low water and the gas content is high, the gas lock phenomenon can be generated.
SUMMERY OF THE UTILITY MODEL
In order to overcome current hydraulic feedback pump and easily produce the not enough of airlock phenomenon when the extraction liquid contains water low, gas content is high, the utility model provides a can prevent the hydraulic feedback pump of airlock, this can prevent the hydraulic feedback pump of airlock can the greatly reduced airlock phenomenon, reaches the purpose that improves the pump efficiency to containing gas well production liquid.
The technical scheme of the utility model is that: the utility model provides a can prevent hydraulic feedback pump of air-lock, includes the coupling main part, it has the water faucet hole to open on the lateral wall at coupling main part middle part, is equipped with two-layer filter screen on the downthehole inside terminal surface of water faucet, has put the water faucet between the two-layer filter screen, and outer filter screen outside is put and is sealed the pad, is connected with the water faucet seat on the water faucet hole of sealed outside of filling up.
The upper end and the lower end of the coupling main body are respectively connected with the upper short pump cylinder and the lower pump cylinder.
The utility model discloses following beneficial effect has: by adopting the scheme, the water nozzle is arranged on the coupling main body, so that gas in the pump cavity can be discharged when the oil well pump strokes upwards, the gas lock phenomenon is avoided, and the purpose of improving the pump efficiency of the gas-containing well output liquid is achieved; the water nozzle is positioned between the two layers of filter screens, so that the water nozzle can be prevented from being blocked by impurities; the water injection well choke adopts carbide, increases the life when exhausting, and laser cutting is adopted in carbide processing, guarantees precision and reasonable displacement.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic diagram of a hydraulic feedback pump.
In the figure, 1-a coupling main body, 2-a filter screen, 3-a water nozzle, 4-a water nozzle seat, 5-a sealing gasket, 6-an upper short pump barrel, 7-a coupling, 8-an upper plunger, 9-a lower pump barrel, 10-an oil outlet valve, 11-an oil inlet valve, 12-a lower plunger and 13-an oil drainage groove.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in figures 1 and 2, the hydraulic feedback pump capable of preventing air lock comprises a coupling main body 1, wherein a water nozzle hole is formed in the side wall of the middle of the coupling main body 1, the water nozzle hole is a stepped hole which is large outside and small inside, two layers of filter screens 2 are arranged on the stepped surface inside the water nozzle hole, a water nozzle 3 is arranged between the two layers of filter screens 3, the water nozzle 3 is aligned to the small hole of the stepped hole, and the diameter of the water nozzle 3 is 0.1-1.0 mm. The outside of outer filter screen 2 has been put sealed 5 of filling up, and threaded connection has water nozzle seat 4 on the water nozzle hole of sealed 5 outsides of filling up, and water nozzle seat 4 is fixed sealed 5, filter screen 2 and water injection well choke 3 downtheholely, and filter screen 2 can prevent that water injection well choke 3 from blockking up, and sealed 5 can make gas and liquid in the pump can only pass through 3 rows of water injection well choke annuluses of oil jacket.
The upper end and the lower end of the coupling main body 1 are respectively connected with an upper short pump barrel 6 and a lower pump barrel 9, an upper plunger 8 is arranged inside the lower pump barrel 9, an oil outlet valve 10 is arranged at the bottom of the upper plunger 8, the bottom of the oil outlet valve 10 is connected with an oil inlet valve 11 through a short circuit, and the bottom of a valve seat of the oil inlet valve 11 is connected with a lower plunger 12. And an oil drainage groove 13 is formed in the side wall of the bottom of the lower pump barrel 9. The water nozzle 3 is arranged on the coupling main body 1, and can discharge gas in the pump cavity when the oil well pump strokes upwards. The water nozzle 3 is made of hard alloy, so that the service life of the water nozzle during exhaust is prolonged, the hard alloy is machined by laser cutting, the precision and reasonable exhaust amount are ensured, and the purpose of improving the pump efficiency of the produced liquid of the gas-containing well is achieved.
Claims (2)
1. A hydraulic feedback pump capable of preventing air lock, which comprises a coupling main body (1), and is characterized in that: the coupling is characterized in that a water nozzle hole is formed in the side wall of the middle of the coupling main body (1), two layers of filter screens (2) are arranged on the end face of the water nozzle hole, a water nozzle (3) is arranged between the two layers of filter screens (2), a sealing gasket (5) is arranged outside the outer layer of filter screen (2), and a water nozzle seat (4) is connected to the water nozzle hole outside the sealing gasket (5).
2. The hydraulic feedback pump as recited in claim 1, wherein: the upper end and the lower end of the coupling main body (1) are respectively connected with an upper short pump cylinder (6) and a lower pump cylinder (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921114927.2U CN210599358U (en) | 2019-07-16 | 2019-07-16 | Hydraulic feedback pump capable of preventing air lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921114927.2U CN210599358U (en) | 2019-07-16 | 2019-07-16 | Hydraulic feedback pump capable of preventing air lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210599358U true CN210599358U (en) | 2020-05-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921114927.2U Active CN210599358U (en) | 2019-07-16 | 2019-07-16 | Hydraulic feedback pump capable of preventing air lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210599358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410302A (en) * | 2019-07-16 | 2019-11-05 | 中国石油天然气股份有限公司 | Hydraulic feedback pump capable of preventing air lock |
-
2019
- 2019-07-16 CN CN201921114927.2U patent/CN210599358U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410302A (en) * | 2019-07-16 | 2019-11-05 | 中国石油天然气股份有限公司 | Hydraulic feedback pump capable of preventing air lock |
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