CN201053305Y - Straight line reciprocating oil-submersible rodless double-pump pipe column - Google Patents
Straight line reciprocating oil-submersible rodless double-pump pipe column Download PDFInfo
- Publication number
- CN201053305Y CN201053305Y CNU2007201166298U CN200720116629U CN201053305Y CN 201053305 Y CN201053305 Y CN 201053305Y CN U2007201166298 U CNU2007201166298 U CN U2007201166298U CN 200720116629 U CN200720116629 U CN 200720116629U CN 201053305 Y CN201053305 Y CN 201053305Y
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- Prior art keywords
- pump
- pump barrel
- following
- oil pipe
- plunger
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Abstract
A linear reciprocating type oil-submersible rodless double-pump pipe string relates to an oil production device for oilfields. The utility model provides a linear reciprocating type oil-submersible rodless double-pump pipe string in order to solve that the lifting of the prior rod pump has the problems of rod-pipe eccentric wear, high energy consumption, etc. The lower end of a pump barrel (2) of the utility model is provided with a lower valve (6) and a lower pump plunger (8); the upper end inside the pump barrel (2) is provided with an upper pump plunger (7) and an upper valve (5); the middle part inside the pump barrel (2) is provided with a linear motor (9); the upper end of a rotor (9-1) of the linear motor (9) is connected with the upper pump plunger (7); the lower end of the rotor (9-1) is connected with the lower pump plunger (8); the linear motor (9) is connected with a cable (12); two anti-sand sieve tubes (10) are arranged inside the pump barrel (2); a packer (11) is arranged between an oil discharge pipe (4) and a well pipe (1). The utility model realizes no interference commingled production of two sets of strata series, fully brings the productivity of each strata series into play, simultaneously avoids the problem of rods and pipes, decreases operation cost as well as energy consumption, and improves the economic benefit of exploitation.
Description
Technical field
The utility model relates to a kind of oil field extracting device of oil.
Background technology
The oil field has the part oil well to adopt generally to close adopts tubing string, has serious interlayer interference phenomenon, has limited low pressure layer production fluid; Common separate zone production tubing string all adopts the sucker rod pump lifting at present, has problems such as rod and tube partial-wear, energy consumption height, the economic benefit of influence exploitation.
The utility model content
The purpose of this utility model is for solving sucker rod pump lifting, have problems such as rod and tube partial-wear, energy consumption height, providing the latent oil of a kind of linear reciprocating no bar double pump tubing string.The utility model is by well casing 1, pump barrel 2, last oil pipe 3, following oil pipe 4, last valve 5, following valve 6, last pump plunger 7, following pump plunger 8, linear electric motors 9, three sand control screens 10, packer 11 and cable 12 are formed, pump barrel 2 is housed in the well casing 1, the upper end of pump barrel 2 is connected with last oil pipe 3 by screw thread, the lower end of pump barrel 2 is connected with following oil pipe 4 by screw thread, valve 6 and following pump plunger 8 are equipped with down in lower end in the pump barrel 2, pump plunger 7 and last valve 5 are equipped with in upper end in the pump barrel 2, linear electric motors 9 are equipped with at middle part in the pump barrel 2, the upper end of the mover 9-1 of linear electric motors 9 is connected with last pump plunger 7, the lower end of mover 9-1 is connected with following pump plunger 8, linear electric motors 9 are connected with cable 12, two sand control screens 10 are housed in the pump barrel 2, a sand control screen 10 is housed in the following oil pipe 4, between following oil pipe 4 and the well casing 1 packer 11 is housed.
The utlity model has following beneficial effect: one, the utility model adopts linear electric motors to be connected with upper and lower pump, and pump moves reciprocatingly about driving, and has avoided rod and tube partial-wear.Two, the utility model employing packer is two-layer about annular space is divided into, and has avoided interlayer interference, and energy consumption is reduced, and has improved two cover series of strata exploitation effect and economic benefits, helps reducing the exploitation economic boundaries of stack series of strata, the increase recoverable reserves.Three, the utility model can significantly improve the pump efficiency and the stability of oil pump, prolongs pump detection period significantly, has performances such as anticorrosion, antimagnetic and wear-resisting.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1, present embodiment is by well casing 1, pump barrel 2, last oil pipe 3, following oil pipe 4, last valve 5, following valve 6, last pump plunger 7, following pump plunger 8, linear electric motors 9, three sand control screens 10, packer 11 and cable 12 are formed, pump barrel 2 is housed in the well casing 1, the upper end of pump barrel 2 is connected with last oil pipe 3 by screw thread, the lower end of pump barrel 2 is connected with following oil pipe 4 by screw thread, valve 6 and following pump plunger 8 are equipped with down in lower end in the pump barrel 2, pump plunger 7 and last valve 5 are equipped with in upper end in the pump barrel 2, linear electric motors 9 are equipped with at middle part in the pump barrel 2, the upper end of the mover 9-1 of linear electric motors 9 is connected with last pump plunger 7, the lower end of mover 9-1 is connected with following pump plunger 8, linear electric motors 9 are connected with cable 12, two sand control screens 10 are housed in the pump barrel 2, a sand control screen 10 is housed in the following oil pipe 4, between following oil pipe 4 and the well casing 1 packer 11 is housed, packer 11 is divided into upper strata oil jacket annular space 13 and lower floor's oil jacket annular space 14 with the cavity between well casing 1 and the oil pipe.
The no bar double pump tubing string of the latent oil of above-mentioned linear reciprocating, its operating principle is: packer 11 is divided into upper strata oil jacket annular space 13 and lower floor's oil jacket annular space 14 with the cavity between well casing 1 and the oil pipe, linear electric motors 9 drive by cable 12, its mover 9-1 is axially moved, drive the past double action of two pump plungers that connect up and down, when mover 9-1 is up, cavity indoor pressure raises between last pump plunger 7 and the last valve 5, force the travelling valve 7-1 on the pump plunger 7 to close, open and go up valve 5, intracavity liquid enters in the oil pipe 3; Simultaneously, travelling valve 8-1 on the following pump plunger 8 closes, following valve 6 is opened, lower floor's liquid enters down in the oil pipe 4, when descending, cavity indoor pressure reduces between last pump plunger 7 and the last valve 5, and liquid forces valve 5 to be closed in the last oil pipe 3, pump intake pressure is opened travelling valve 7-1 in the oil pipe 3 and go up, in the liquid suction chamber; Simultaneously, following oil pipe 4 intracavity liquids are discharged in the upper strata oil jacket annular space 13 and are together extracted out by last valve 5 with supernatant liquid.
Claims (1)
1. a linear reciprocating no bar double pump tubing string of oil of diving, it is by well casing (1), pump barrel (2), last oil pipe (3), following oil pipe (4), last valve (5), following valve (6), last pump plunger (7), following pump plunger (8), linear electric motors (9), three sand control screens (10), separator (11) and cable (12) are formed, pump barrel (2) is housed in the well casing (1), the upper end of pump barrel (2) is connected with last oil pipe (3) by screw thread, the lower end of pump barrel (2) is connected with following oil pipe (4) by screw thread, it is characterized in that the lower end in the pump barrel (2) is equipped with down valve (6) and following pump plunger (8), pump plunger (7) and last valve (5) are equipped with in upper end in the pump barrel (2), linear electric motors (9) are equipped with at middle part in the pump barrel (2), the upper end of the mover (9-1) of linear electric motors (9) is connected with last pump plunger (7), the lower end of mover (9-1) is connected with following pump plunger (8), linear electric motors (9) are connected with cable (12), two sand control screens (10) are housed in the pump barrel (2), a sand control screen (10) is housed in the following oil pipe (4), between following oil pipe (4) and the well casing (1) packer (11) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201166298U CN201053305Y (en) | 2007-07-20 | 2007-07-20 | Straight line reciprocating oil-submersible rodless double-pump pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201166298U CN201053305Y (en) | 2007-07-20 | 2007-07-20 | Straight line reciprocating oil-submersible rodless double-pump pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053305Y true CN201053305Y (en) | 2008-04-30 |
Family
ID=39392969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201166298U Expired - Lifetime CN201053305Y (en) | 2007-07-20 | 2007-07-20 | Straight line reciprocating oil-submersible rodless double-pump pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053305Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015096085A1 (en) * | 2013-12-26 | 2015-07-02 | 深圳市大族激光科技股份有限公司 | Oil-submersible linear motor oil extraction system |
-
2007
- 2007-07-20 CN CNU2007201166298U patent/CN201053305Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015096085A1 (en) * | 2013-12-26 | 2015-07-02 | 深圳市大族激光科技股份有限公司 | Oil-submersible linear motor oil extraction system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080430 |
|
| CX01 | Expiry of patent term |