CN2528961Y - Underground hydraulic oil well pump - Google Patents
Underground hydraulic oil well pump Download PDFInfo
- Publication number
- CN2528961Y CN2528961Y CN 01275433 CN01275433U CN2528961Y CN 2528961 Y CN2528961 Y CN 2528961Y CN 01275433 CN01275433 CN 01275433 CN 01275433 U CN01275433 U CN 01275433U CN 2528961 Y CN2528961 Y CN 2528961Y
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- CN
- China
- Prior art keywords
- connecting body
- valve
- piston
- housed
- last
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000010720 hydraulic oil Substances 0.000 title 1
- 239000003129 oil well Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 12
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 abstract 2
- 230000037431 insertion Effects 0.000 abstract 2
- 238000001514 detection method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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Abstract
The utility model belongs to an underground equipment of exploitation oil is an underground oil lifting devices. The liquid discharge valve is characterized in that an insertion pipe is arranged in the upper connecting body, the upper connecting body is sequentially connected with an upper working barrel, a righting connecting body and a lower working barrel, a plunger is arranged below the lower piston, a plugging body is arranged in the plunger, the lower connecting body is connected with a liquid discharge valve body, and a fixed valve body is arranged at the lower end of the liquid discharge valve body. The upper connector is communicated with a ground pump through an oil pipe, the insertion pipe is communicated with the ground pump through a smaller pipeline, and high-pressure liquid is used as power. The method is mainly suitable for mechanical oil extraction of the inclined shaft.
Description
The utility model belongs to a kind of underground equipment of recover petroleum, is a kind of down-hole oil lift device.
At present oil underground mining equipment is mainly based on rod pump, and this rod pump device is to drive sucker rod by the ground beam pumping unit to drive the underwell pump to-and-fro motion, and the output liquid of last km downhole oil layer is given rise to ground.When this oil pumping mode is used in vertical pit shaft, eccentric wear phenomenon between sucker rod and the oil pipe is also not too obvious, if in inclined shaft, use, the angle that tilts because of well wellbore is bigger, serious eccentric wear phenomenon can take place with oil pipe in last km to the sucker rod of several kms in pit shaft, make R a T produce heavy wear in the part, adds up according to interrelated data, in inclined shaft, the rod parting accident that causes because of eccentric wear has reached more than 30% of oil well pump detection and workover treating capacity.Sucker rod partial wear in this inclined shaft, strengthened the workload of operation inspection pump on the one hand, the expense of pump detection and workover has been increased greatly, and greatly reduced the working life of oil pipe and sucker rod, have to change oil pipe and sucker rod in a large number, thereby the cost of production of oil well is further strengthened.On the other hand,, reduced the effective production time of oil well, directly influenced the production capacity effect of oil well because of the frequent pump detection and workover of pumping well.
The purpose of this utility model is a kind of underground hydraulic pressure oil well pump of design, this oil well pump is to utilize highly pressurised liquid to be used as power, and drives the oil of oil well pump extraction down-hole, is easy to generate the eccentric wear phenomenon when avoiding sucker rod pump to use in inclined shaft, improve the manufacturing efficiency of oil well, reduce cost.
Technical solution of the present utility model is to realize like this, a kind of underground hydraulic pressure oil well pump, be connected to form by screw thread and pump barrel, following connecting body by last connecting body, below following connecting body, standing valve is installed, its special way is, (1) has through hole at the middle part of last connecting body, in the last connecting body intubate is housed, have Sealing between them.(2) lower end of last connecting body is connected with working barrel in turn, sets upright connecting body, descends working barrel by screw thread, has through hole in last working barrel bottom, in last working barrel, upper piston is housed, piston ring and seal ring are installed on the upper piston, in the working barrel lower piston being housed down, have through hole on the lower piston, piston ring and seal ring are installed on the lower piston, last lower piston is connected by screw thread, is separately installed with piston ring and seal ring in setting upright the annular groove of connecting body.(3) the lower piston lower end is equipped with plunger by screw thread, between plunger and the following connecting body piston ring and seal ring is housed.(4) in plunger, blockage body is installed, in the groove of blockage body seal ring is housed by jump ring.(5) connecting body is connected with draining valve by box cupling down, and valve seat and valve ball are installed in the draining valve, has through hole on the valve seat.(6) in the draining valve lower end by the fixed valve body that has been threaded, valve seat, interior cover, valve ball and valve bonnet are housed in fixed valve body successively.
The utility model has the advantages that: (1) hydraulic well pump is that the highly pressurised liquid that utilizes ground to send into is used as power, and does not need sucker rod, has fundamentally solved the eccentric wear problem between sucker rod and the oil pipe, has protected oil pipe.(2) do not damage owing to eccentric wear can not take place oil pipe, can prolong pump detection period, reduce the workload of oil well, increase the work limitation of oil well, reduce the operating cost of oil well.(3) can reduce investment cost.
Accompanying drawing is a cross-sectional view of the present utility model.
Be described further (embodiment) below in conjunction with accompanying drawing:
Have 4-8 manhole at the middle part of last connecting body 1, piston ring 7, " V " shape seal ring 8 are installed in respectively in the groove on upper piston 9 tops, piston ring 12, " V " shape seal ring 10 are installed in respectively in the groove of setting upright connecting body 11, piston ring 16, " V " shape seal ring 18 are installed in respectively in the groove of lower piston 17.Upper piston 9 is installed in the working barrel 6, and the upper end of last working barrel 6 is installed in the lower end of connecting body 1 by screw thread, and seal ring 5 is installed between them, and the bottom of last working barrel has 4-8 through hole.Setting upright connecting body 11 is connected with last working barrel 6 by screw thread, has through hole on the lower piston 17, lower piston 17 is connected with upper piston 9 by screw thread, following working barrel 15 is by being threaded in the lower end of setting upright connecting body 11, the bottom of following working barrel 15 has 4-8 through hole, and plunger 19 is installed in the lower end of lower piston 17 by screw thread.The upper end of pump barrel 14 is connected with last connecting body 1 by screw thread, and seal ring 2 is installed between them.Piston ring 23, " V " shape seal ring 22 are installed in down respectively in the groove of connecting body 21, and following connecting body 21 is connected by the lower end of screw thread with pump barrel 14, and seal ring 20 is installed between them.Blockage body 24 is installed in the plunger 19 by jump ring 25, and 2 seal rings 26 are installed between them.Draining valve 28 is installed in down the lower end of connecting body 21 by box cupling 27, and valve seat 29 is installed in draining valve 28, has longitudinal hole on the valve seat 29, and valve ball 30 is housed in the valve seat 29.Fixed valve body 31 is installed in draining valve 28 lower ends by screw thread, and valve seat 35, interior cover 32, valve ball 34, valve bonnet 33 are housed in the fixed valve body 31, has through hole on valve bonnet 33.
The hydraulic well pump that assembling is finished is connected 2 7/8 by last connecting body 1 " in the lower end lower going-into-well of oil pipe; the oil pipe upper end is connected with the hydraulicdirectional control valve of ground well head; intubate 3 is installed in the connecting body 1; seal ring 4 is housed between them; the top of intubate 3 connects 1 1/2 " oil pipes, straight-through ground well head is connected with hydraulicdirectional control valve.Enter annular space between 2 7/8 " oil pipe and 1 1/2 " oil pipe from the highly pressurised liquid of ground high-pressure service pump output by hydraulicdirectional control valve, enter in the underground hydraulic pressure pump, lower piston 9,17 in the promotion, it is up to drive plunger 19, make draining valve 28 inner chambers form vacuum, down-hole liquid is full of in the plunger case, finishes aspiration procedure.The valve block of the hydraulicdirectional control valve on the well head of ground is switched the position at this moment, make highly pressurised liquid enter 1 1/2 " in the oil pipe; arrive in the underground hydraulic pressure pump; the effect lower plunger 19 in the power of surging is descending; valve ball 34 is closed; liquid valve ball 30 holes by liquid discharging valve under the effect of plunger 19 in the fluid cylinder are discharged to outside the pump barrel 14, drain into ground by the oil jacket annular space always.
Claims (1)
1. a underground hydraulic pressure oil well pump is connected to form by screw thread and pump barrel (14), following connecting body (21) by last connecting body (1), in the below of following connecting body (21) standing valve is installed, and it is characterized in that:
1. have through hole at the middle part of last connecting body (1), intubate (3) is housed in the last connecting body (1), have Sealing (4) between them;
The lower end of 2. going up connecting body (1) is connected with working barrel (6) in turn by screw thread, set upright connecting body (11), following working barrel (15), has through hole in last working barrel (6) bottom, upper piston (9) is housed in last working barrel (6), piston ring (7) and seal ring (8) are installed on the upper piston (9), in the working barrel (15) lower piston (17) is being housed down, lower piston has through hole on (17), piston ring (16) and seal ring (18) are installed on the lower piston (17), last lower piston (9,17) be connected by screw thread, in the annular groove of setting upright connecting body (11), be separately installed with piston ring (12) and seal ring (10);
3. lower piston (17) lower end is equipped with plunger (19) by screw thread, and piston ring (23) and seal ring (22) are housed between plunger (19) and the following connecting body (21);
4. in plunger (19), blockage body (24) is installed, seal ring (26) is housed in the groove of blockage body (24) by jump ring (25);
5. descend connecting body (21) to be connected with draining valve (28), valve seat (29) and valve ball (30) are installed in the draining valve (28), have through hole on the valve seat by box cupling (27);
6. in draining valve (28) lower end by the fixed valve body that has been threaded (31), valve seat (35), interior cover (32), valve ball (34) and valve bonnet (33) are housed in fixed valve body (31) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01275433 CN2528961Y (en) | 2001-11-30 | 2001-11-30 | Underground hydraulic oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01275433 CN2528961Y (en) | 2001-11-30 | 2001-11-30 | Underground hydraulic oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2528961Y true CN2528961Y (en) | 2003-01-01 |
Family
ID=33679867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01275433 Expired - Lifetime CN2528961Y (en) | 2001-11-30 | 2001-11-30 | Underground hydraulic oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2528961Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316141C (en) * | 2004-01-10 | 2007-05-16 | 中国石油集团钻井工程技术研究院江汉机械研究所 | Under well hydraulic lifter |
| CN100337034C (en) * | 2004-09-14 | 2007-09-12 | 北京迪威尔石油天然气技术开发有限公司 | Hydraulic oil pump |
| CN104235005A (en) * | 2014-09-05 | 2014-12-24 | 江苏宏业石油装备科技有限公司 | Two-stage dynamic seal oil well pump plunger used for oil field plunger oil well pump |
| CN117703726A (en) * | 2023-12-28 | 2024-03-15 | 湖北油气钻采装备产业技术研究院有限责任公司 | Hydraulic drive automatic reciprocating deep mining pump |
-
2001
- 2001-11-30 CN CN 01275433 patent/CN2528961Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316141C (en) * | 2004-01-10 | 2007-05-16 | 中国石油集团钻井工程技术研究院江汉机械研究所 | Under well hydraulic lifter |
| CN100337034C (en) * | 2004-09-14 | 2007-09-12 | 北京迪威尔石油天然气技术开发有限公司 | Hydraulic oil pump |
| CN104235005A (en) * | 2014-09-05 | 2014-12-24 | 江苏宏业石油装备科技有限公司 | Two-stage dynamic seal oil well pump plunger used for oil field plunger oil well pump |
| CN117703726A (en) * | 2023-12-28 | 2024-03-15 | 湖北油气钻采装备产业技术研究院有限责任公司 | Hydraulic drive automatic reciprocating deep mining pump |
| CN117703726B (en) * | 2023-12-28 | 2024-06-04 | 湖北油气钻采装备产业技术研究院有限责任公司 | Hydraulic drive automatic reciprocating deep mining pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111130 Granted publication date: 20030101 |