CN102720663A - Special oil-well pump for multifunctional submersible linear motor - Google Patents
Special oil-well pump for multifunctional submersible linear motor Download PDFInfo
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- CN102720663A CN102720663A CN2012101766432A CN201210176643A CN102720663A CN 102720663 A CN102720663 A CN 102720663A CN 2012101766432 A CN2012101766432 A CN 2012101766432A CN 201210176643 A CN201210176643 A CN 201210176643A CN 102720663 A CN102720663 A CN 102720663A
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- outer pipe
- plunger piston
- well pump
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Abstract
The invention relates to a special oil-well pump for a multifunctional submersible linear motor. The special oil-well pump comprises an outer pipe assembly, a pump cylinder assembly arranged in the outer pipe assembly, a desilting assembly arranged at the top end of the outer pipe assembly, and a sand filter assembly arranged at the tail end of the outer pipe assembly; an outer pipe inner chamber is formed between the outer pipe assembly and the pump cylinder assembly; a fixing assembly and a plunger piston assembly are arranged in the pump cylinder assembly in sequence; the fixing assembly, the plunger piston assembly and the pump cylinder assembly form a pump cylinder upper chamber; and the plunger piston assembly and the pump cylinder assembly form a hydrodynamic feedback chamber. The special oil-well pump for the multifunctional submersible linear motor has the advantages of energy conservation, sand prevention, gas lock prevention, capability of being used for slant wells, long service life and low cost of oil recovery.
Description
Technical field
The present invention relates to the field of oil well pump, the special-purpose oil well pump of especially a kind of multi-functional oil immersion line motor.
Background technique
Oil well pump is deep-well pump again, is most important underground equipment in the sucker rod pumping device, is to drive plunger through sucker rod to make upper and lower reciprocating underwell pump.During following well operations, oil well pump is installed in the bottom of tubing string, be submerged in the well liquid, through the rod string transferring power, directly in the swabbing well in liquid.
The oil well pump ubiquity that uses at present contains problems such as sand, gassiness, hole deviation, eccentric wear, power consumption are big, causes the damage of oil well pump and working life to lack easily.
Summary of the invention
The technical problem that the present invention will solve is: in order to overcome the problem that exists in above-mentioned, provide a kind of multi-functional oil immersion line motor special-purpose oil well pump, it has energy-conservation, sand prevention, anti-gas lock and can be used in inclined shaft, long service life.
The technical solution adopted for the present invention to solve the technical problems is: the special-purpose oil well pump of a kind of multi-functional oil immersion line motor; Comprise outer pipe assembly, be arranged on pump barrel assembly in the outer pipe assembly and the filter sand assembly that is arranged on the desilting assembly on outer pipe assembly top and is connected outer pipe assembly tail end; Form the outer tube bore chamber between described outer pipe assembly and the pump barrel assembly; Be disposed with fixation assembly and plunger piston assembly in the pump barrel assembly; Form pump barrel upper chamber between described fixation assembly, plunger piston assembly and the pump barrel assembly, form fluid power feedback chamber between described plunger piston assembly and the pump barrel assembly.
First link that described outer pipe assembly comprises housing, be threaded with housing upper end, the upper connection that is threaded mutually with first link, the filter sand sleeve pipe, the connecting head that is connected with the filter sand sleeve pipe that are threaded with the housing lower end and the pump seat that is connected with connecting head, described pump seat and connecting head are for being threaded.
Described filter sand assembly is a filtering screen pipe.
Spacing between described plunger piston assembly and the fixation assembly is 3～9mm, and the space that gas exists is very little, can play the effect of venting lock.
The invention has the beneficial effects as follows, the special-purpose oil well pump of a kind of multi-functional oil immersion line motor of the present invention, it has energy-conservation, sand prevention, anti-gas lock and can be used in inclined shaft and long service life, and cost for oil production is low.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is a structural representation of the present invention.
1. outer pipe assemblies among the figure, 11. housings, 12. first links, 13. upper connections, 14. filter sand sleeve pipes; 15. connecting head, 16. pump seats, 2. pump barrel assembly, 3. desilting assembly, 4. filter sand assembly; 5. outer tube bore chamber, 6. fixation assembly, 7. plunger piston assembly, 8. pump barrel upper chamber, 9. fluid power feedback chamber.
Embodiment
Combine accompanying drawing that the present invention is done further detailed explanation now.These accompanying drawings are the schematic representation of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
The special-purpose oil well pump of a kind of multi-functional oil immersion line motor as shown in Figure 1; Comprise outer pipe assembly 1; First link 12 that outer pipe assembly 1 comprises housing 11, be threaded with housing 11 upper ends, the upper connection 13 that is threaded mutually with first link 12, the filter sand sleeve pipe 14, the connecting head 15 that is connected with filter sand sleeve pipe 14 that are threaded with housing 11 lower ends and the pump seat 16 that is connected with connecting head 15; Pump seat 16 and connecting head 15 are for being threaded; Pump barrel assembly 2 is set in the pipe assembly 1 outside and is arranged on the desilting assembly 3 on outer pipe assembly 1 top and the filter sand assembly 4 that is connected outer pipe assembly 1 tail end; Form outer tube bore chamber 5 between outer pipe assembly 1 and the pump barrel assembly 2, be disposed with fixation assembly 6 and plunger piston assembly 7 in the pump barrel assembly 2, over-stroke can reduce to 3mm or 9mm between plunger piston assembly 7 and the fixation assembly 6; Form pump barrel upper chamber 8 between fixation assembly 6, plunger piston assembly 7 and the pump barrel assembly 2, form fluid power feedback chamber 9 between plunger piston assembly 7 and the pump barrel assembly 2.
The working principle of the special-purpose oil well pump of a kind of multi-functional oil immersion line motor of the present invention: when the plunger piston assembly 7 of oil well pump moves downwards; Standing valve cuts out, and traveling valve is opened, and liquid is behind filter sand assembly 4 filter sands; Get into pump barrel upper chamber 8 through plunger core hole, accomplish oil-absorbing process; When the plunger piston assembly 7 of oil well pump upwards moves; Standing valve is opened, and traveling valve cuts out, and the liquid that pump barrel upper chamber is 8 li is entering fluid power feedback chambers 95 through the outer tube bore chamber; This moment, the pressure of fluid power feedback chamber 9 was identical with outer tube bore chamber 5 with pump barrel upper chamber 8; Apply a thrust that makes progress with the liquid of pressure to plunger piston assembly 7 bottoms this moment, because of plunger piston assembly 7 lower end surface areas only are that 1/2,1/2 liquid of plunger piston assembly 7 upper end areas is extruded in the oil pipe through desilting assembly 3; When the plunger piston assembly 7 of oil well pump moved downwards, standing valve cut out, and traveling valve is opened, and pump barrel upper chamber 8 forms negative pressure, oil suction; Fluid power feedback chamber 9 volumes reduce, and the liquid of the inside is extruded in the oil pipe through desilting assembly 3; So move in circles, the liquid in the oil well oil reservoir is just given rise to ground, so this pump only with the power in same pump footpath 1/2, just can give rise to ground to well liquid; Than energy-conservation more than 30% with the oil well pump of conventional same specification.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (4)
1. special-purpose oil well pump of multi-functional oil immersion line motor; It is characterized in that: comprise outer pipe assembly (1), be arranged on pump barrel assembly (2) in the outer pipe assembly (1) and the filter sand assembly (4) that is arranged on the desilting assembly (3) on outer pipe assembly (1) top and is connected outer pipe assembly (1) tail end; Form outer tube bore chamber (5) between described outer pipe assembly (1) and the pump barrel assembly (2); Be disposed with fixation assembly (6) and plunger piston assembly (7) in the pump barrel assembly (2); Form pump barrel upper chamber (8) between described fixation assembly (6), plunger piston assembly (7) and the pump barrel assembly (2), form fluid power feedback chamber (9) between described plunger piston assembly (7) and the pump barrel assembly (2).
2. the special-purpose oil well pump of a kind of multi-functional oil immersion line motor according to claim 1; It is characterized in that: first link (12) that described outer pipe assembly (1) comprises housing (11), be threaded with housing (11) upper end, the upper connection (13) that is threaded mutually with first link (12), the filter sand sleeve pipe (14), the connecting head (15) that is connected with filter sand sleeve pipe (14) that are threaded with housing (11) lower end and the pump seat (16) that is connected with connecting head (15), described pump seat (16) and connecting head (15) are for being threaded.
3. the special-purpose oil well pump of a kind of multi-functional oil immersion line motor according to claim 1, it is characterized in that: described filter sand assembly (4) is a filtering screen pipe.
4. the special-purpose oil well pump of a kind of multi-functional oil immersion line motor according to claim 1, it is characterized in that: the spacing between described plunger piston assembly (7) and the fixation assembly (6) is 3～9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101766432A CN102720663A (en) | 2012-05-31 | 2012-05-31 | Special oil-well pump for multifunctional submersible linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101766432A CN102720663A (en) | 2012-05-31 | 2012-05-31 | Special oil-well pump for multifunctional submersible linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102720663A true CN102720663A (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101766432A Pending CN102720663A (en) | 2012-05-31 | 2012-05-31 | Special oil-well pump for multifunctional submersible linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720663A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557145A (en) * | 2013-11-07 | 2014-02-05 | 胜利油田龙玺石油钢管有限公司 | Electric submersible oil reciprocation pump |
| CN103939319A (en) * | 2014-04-29 | 2014-07-23 | 中船重工中南装备有限责任公司 | Three-tube type linear motor oil well pump |
| CN113123950A (en) * | 2019-12-31 | 2021-07-16 | 中国石油天然气股份有限公司 | Submersible electric plunger pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3966360A (en) * | 1975-01-27 | 1976-06-29 | Greene James L | Continuous-flow fluid pump |
| US5992452A (en) * | 1998-11-09 | 1999-11-30 | Nelson, Ii; Joe A. | Ball and seat valve assembly and downhole pump utilizing the valve assembly |
| CN2369003Y (en) * | 1999-04-12 | 2000-03-15 | 宋德福 | Anti-sand pump for thick oil |
| CN201057138Y (en) * | 2007-04-10 | 2008-05-07 | 胜利油田胜利泵业有限责任公司 | Special oil pump of linear electric motor |
| CN201148965Y (en) * | 2008-01-16 | 2008-11-12 | 日照原野机械制造有限公司 | Movable barrel type straight line motor oil-well pump |
| CN201159164Y (en) * | 2008-01-22 | 2008-12-03 | 胥凤和 | Protecting equipment of oil pump |
-
2012
- 2012-05-31 CN CN2012101766432A patent/CN102720663A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3966360A (en) * | 1975-01-27 | 1976-06-29 | Greene James L | Continuous-flow fluid pump |
| US5992452A (en) * | 1998-11-09 | 1999-11-30 | Nelson, Ii; Joe A. | Ball and seat valve assembly and downhole pump utilizing the valve assembly |
| CN2369003Y (en) * | 1999-04-12 | 2000-03-15 | 宋德福 | Anti-sand pump for thick oil |
| CN201057138Y (en) * | 2007-04-10 | 2008-05-07 | 胜利油田胜利泵业有限责任公司 | Special oil pump of linear electric motor |
| CN201148965Y (en) * | 2008-01-16 | 2008-11-12 | 日照原野机械制造有限公司 | Movable barrel type straight line motor oil-well pump |
| CN201159164Y (en) * | 2008-01-22 | 2008-12-03 | 胥凤和 | Protecting equipment of oil pump |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557145A (en) * | 2013-11-07 | 2014-02-05 | 胜利油田龙玺石油钢管有限公司 | Electric submersible oil reciprocation pump |
| CN103557145B (en) * | 2013-11-07 | 2016-03-09 | 山东祺龙海洋石油钢管股份有限公司 | Electric submersible oil reciprocation pump |
| CN103939319A (en) * | 2014-04-29 | 2014-07-23 | 中船重工中南装备有限责任公司 | Three-tube type linear motor oil well pump |
| CN103939319B (en) * | 2014-04-29 | 2016-06-22 | 中船重工中南装备有限责任公司 | Three-tube type linear dynamo oil pump |
| CN113123950A (en) * | 2019-12-31 | 2021-07-16 | 中国石油天然气股份有限公司 | Submersible electric plunger pump |
| CN113123950B (en) * | 2019-12-31 | 2023-02-07 | 中国石油天然气股份有限公司 | Submersible electric plunger pump |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20121010 |