CN202441566U - Hydraulic self-sealing plunger oil well pump with multi-stage pump barrels - Google Patents
Hydraulic self-sealing plunger oil well pump with multi-stage pump barrels Download PDFInfo
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- CN202441566U CN202441566U CN2012200576116U CN201220057611U CN202441566U CN 202441566 U CN202441566 U CN 202441566U CN 2012200576116 U CN2012200576116 U CN 2012200576116U CN 201220057611 U CN201220057611 U CN 201220057611U CN 202441566 U CN202441566 U CN 202441566U
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Abstract
The utility model relates to a hydraulic self-sealing plunger oil well pump with multi-stage pump barrels. The problem that pump barrels of an existing hydraulic self-sealing plunger with the multi-stage pump barrels are short in service life, and oil tube tripping operation is required when the pump barrels are replaced is solved. The hydraulic self-sealing plunger oil well pump is characterized in that a T-shaped boss (11) is arranged in the middle of the inner side of a coupling (2), a support frame (4) which is connected with a fishable valve (7) is arranged on the upper portion of a fixed valve (1), a groove which is matched with the T-shaped boss (11) is arranged at the lower end of the support frame (4), a fixed claw (12) is arranged on the lower portion of the groove, and a liquid outlet hole groove (10) is arranged on the upper portion of the fishable valve (7) and is matched with the fixed claw (12); and the upper portion of the fishable valve (7) is connected with a plunger (9) via a connecting rod (13), and a fishing shoulder (15) is arranged on the upper portion of a peripheral groove on the outside of the connecting rod (13). After the plunger and the pump barrels are abraded and the oil well pump is failed, the plunger can be replaced conveniently, oil tube tripping operation is not required, and the service life of the pump is prolonged.
Description
Technical field
The utility model relates to the field, oil field, a kind of specifically multistage pump barrel hydraulic self-sealed plunger oil-well pump.
Background technique
In oil recovery field, oil field, it is one of traditional artificial lifting way of World Oil Industry that the oil pumping of bar plunger pump is arranged, and also is prevailing up to now artificial lift mode.The phase I of sucker-rod pumping technical development is the bush type plunger pump, and second stage is whole cartridge type plunger pump, and the new stage is a hydraulic pressure self-sealing plunger pump, and hydraulic pressure self-sealing plunger pump has reached the effect of ultralow leakage, ultra low friction resistance, superelevation pump efficiency.Yet plunger pump in underground work; Because the long-term eccentric wear of plunger and pump barrel causes pump barrel short working life; Standing valve is easily fouling and lose its effect under the wearing and tearing of sand or in the ternary displacement of reservoir oil well also, needs periodic replacement at present, still changes pump barrel and standing valve need remove the oil pipe operation; Waste time and energy, increased the oil extraction cost greatly.
Summary of the invention
In order to overcome deficiency above-mentioned in the existing technology; The utility model provides a kind of multistage pump barrel hydraulic self-sealed plunger oil-well pump, when this multistage pump barrel hydraulic self-sealed plunger oil-well pump lost efficacy after plunger and pump barrel wearing and tearing, and conveniently replaced plunger; Needn't remove the oil pipe operation, prolong the working life of pump.
The technological scheme of the utility model is: a kind of multistage pump barrel hydraulic self-sealed plunger oil-well pump; Comprise standing valve, plunger, upper and lower pump barrel; Described going up between pump barrel and the standing valve is connected through box cupling, and described box cupling middle inside circumferencial direction is provided with T shape boss, and described standing valve top is provided with the supporting frame that links to each other with the salvagable valve; Supporting frame lower end exterior periphery direction is provided with the groove that matches with T shape boss; The groove bottom is provided with fixed claw, and the plane is provided with the liquid outlet opening groove on the liquid outlet opening on described salvagable valve top, and described liquid outlet opening groove and fixed claw match;
Described salvagable valve top is connected with connecting rod, and the connecting rod excircle has the outside thread that matches with the internal thread of plunger base, and the connecting rod exterior circumferential is provided with groove, groove top formation salvaging shoulder.
This multistage pump barrel hydraulic self-sealed plunger oil-well pump also comprises fishing head, and described fishing head bottom is provided with to projecting inward bailer grab, and described bailer grab matches with the salvaging shoulder.
Be provided with seal ring between described salvagable standing valve outside and the last pump barrel.
The utlity model has following beneficial effect: owing to take such scheme; When the standing valve of bottom can not work on owing to wearing and tearing; A salvagable standing valve can be installed on standing valve top again; Seal between the salvagable standing valve on top and the last pump barrel, make plunger above pump barrel section to work on.Therefore, saved and removed the time that oil pipe is changed pump barrel, but compared life-saving more than 2 times, practiced thrift the oilfield exploitation cost with original common oil well pump.
Description of drawings:
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation when salvaging the salvagable standing valve;
Fig. 3 is the sectional drawing along A-A among Fig. 2.
1-standing valve among the figure, 2-box cupling, pump barrel under the 3-, 4-supporting frame, 5-pump barrel box cupling; The 6-seal ring, 7-salvagable standing valve, the last pump barrel of 8-, 9-plunger, 10-liquid outlet opening groove; 11-T shape boss, the 12-fixed claw, the 13-connecting rod, the 14-fishing head, 15-salvages shoulder.
Embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
To shown in Figure 3, a kind of multistage pump barrel hydraulic self-sealed plunger oil-well pump comprises standing valve 1, plunger 9, upper and lower pump barrel (8,3) by Fig. 1, connects through pump barrel box cupling 5 between the upper and lower pump barrel (8,3), and plunger 9 is a hydraulic self-sealed plunger.Described going up between pump barrel 3 and the standing valve 1 is connected through box cupling 2, and described box cupling 2 middle inside circumferencial directions are provided with T shape boss 11, and promptly T shape boss 11 is by protruding to inside between last pump barrel 3 bottoms and standing valve 1 top.Described standing valve 1 top is provided with supporting frame 4, and supporting frame 4 tops are threaded with salvagable valve 7, and supporting frame 4 lower end exterior periphery directions are provided with the groove that matches with T shape boss 11; The groove bottom is provided with fixed claw 12; Fixed claw 12 can along the circumferential direction be uniformly distributed with for two or three, and the plane is provided with liquid outlet opening groove 10 on the liquid outlet opening on described salvagable valve 7 tops; Described liquid outlet opening groove 10 matches with fixed claw 12; Fixed claw 12 can insert in the liquid outlet opening groove 10 like this, fixes standing valve 1 at circumferencial direction, to prevent standing valve 1 rotation.Be provided with seal ring 6 between described salvagable standing valve 7 outsides and the last pump barrel 8.
Described salvagable valve 7 tops are connected with connecting rod 13; Connecting rod 13 excircles have the outside thread that matches with the internal thread of plunger 9 bottoms; Can salvagable valve 7 and supporting frame 4 together be connected plunger 9 bottoms, connecting rod 13 exterior circumferential are provided with groove, and groove top forms salvages shoulder 15.This hydraulic self-sealed plunger oil-well pump also comprises fishing head 14, and described fishing head 14 bottoms are provided with to projecting inward bailer grab 16, and described bailer grab 16 matches with salvaging shoulder 15.
This oil well pump is when starting working; Salvagable valve 7 and supporting frame 4 can be installed; When this oil well pump can not work on owing to reasons such as wearing and tearing, salvagable standing valve 7 and supporting frame 4 are connected in the plunger 9 bottom lower going-into-wells through connecting rod 13, the fixed claw 12 of supporting frame 4 bottoms inserts in the liquid outlet opening groove 10; And match with T shape boss 11, rotate under the effect of peripheral force to prevent salvagable standing valve 7.Sealing between salvagable standing valve 7 and the last pump barrel 8, plunger 9 can continue to work on for 8 sections at last pump barrel like this, has saved to remove the time that oil pipe changes pump barrel, has prolonged the working life of oil well pump greatly.When the screw thread on the salvagable standing valve 7 because reason such as wearing and tearing can not be connected with plunger 9 time, can be lowered to subsequent use fishing head 14, the bailer grab 16 through fishing head 14 bottoms and the salvaging shoulder 15 on the connecting rod 13 tops incompatible salvaging salvagable standing valve 7 that matches.
Claims (3)
1. multistage pump barrel hydraulic self-sealed plunger oil-well pump; Comprise standing valve (1), plunger (9), upper and lower pump barrel (8; 3); Described going up between pump barrel (3) and the standing valve (1) is connected through box cupling (2), and it is characterized in that: described box cupling (2) middle inside circumferencial direction is provided with T shape boss (11), and described standing valve (1) top is provided with the supporting frame (4) that links to each other with salvagable valve (7); Supporting frame (4) lower end exterior periphery direction is provided with the groove that matches with T shape boss (11); The groove bottom is provided with fixed claw (12), and the plane is provided with liquid outlet opening groove (10) on the liquid outlet opening on described salvagable valve (7) top, and described liquid outlet opening groove (10) matches with fixed claw (12);
Described salvagable valve (7) top is connected with connecting rod (13); Connecting rod (13) excircle has the outside thread that matches with the internal thread of plunger (9) bottom; And connecting rod (13) exterior circumferential is provided with groove, and groove top forms salvages shoulder (15).
2. multistage pump barrel hydraulic self-sealed plunger oil-well pump according to claim 1; It is characterized in that: this multistage pump barrel hydraulic self-sealed plunger oil-well pump also comprises fishing head (14); Described fishing head (14) bottom is provided with to projecting inward bailer grab (16), and described bailer grab (16) matches with salvaging shoulder (15).
3. multistage pump barrel hydraulic self-sealed plunger oil-well pump according to claim 2 is characterized in that: be provided with seal ring (6) between described salvagable standing valve (7) outside and the last pump barrel (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200576116U CN202441566U (en) | 2012-02-22 | 2012-02-22 | Hydraulic self-sealing plunger oil well pump with multi-stage pump barrels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200576116U CN202441566U (en) | 2012-02-22 | 2012-02-22 | Hydraulic self-sealing plunger oil well pump with multi-stage pump barrels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441566U true CN202441566U (en) | 2012-09-19 |
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ID=46823018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200576116U Expired - Fee Related CN202441566U (en) | 2012-02-22 | 2012-02-22 | Hydraulic self-sealing plunger oil well pump with multi-stage pump barrels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562546A (en) * | 2012-02-22 | 2012-07-11 | 大庆大华宏业石油工程技术有限公司 | Hydraulic self-sealed oil plunger pump with multistage pump cylinder |
-
2012
- 2012-02-22 CN CN2012200576116U patent/CN202441566U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562546A (en) * | 2012-02-22 | 2012-07-11 | 大庆大华宏业石油工程技术有限公司 | Hydraulic self-sealed oil plunger pump with multistage pump cylinder |
| WO2013123762A1 (en) * | 2012-02-22 | 2013-08-29 | 大庆大华宏业石油工程技术有限公司 | Multi-stage pump cylinder hydraulic self-sealing plunger oil-well pump |
| CN102562546B (en) * | 2012-02-22 | 2016-08-17 | 大庆大华宏业石油工程技术有限公司 | Hydraulic self-sealed oil plunger pump with multistage pump cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170912 Granted publication date: 20120919 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20190912 Granted publication date: 20120919 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20180222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |