CN202732299U - Injection and hot extraction oil-well pump - Google Patents
Injection and hot extraction oil-well pump Download PDFInfo
- Publication number
- CN202732299U CN202732299U CN 201220387732 CN201220387732U CN202732299U CN 202732299 U CN202732299 U CN 202732299U CN 201220387732 CN201220387732 CN 201220387732 CN 201220387732 U CN201220387732 U CN 201220387732U CN 202732299 U CN202732299 U CN 202732299U
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- China
- Prior art keywords
- joint
- pump barrel
- plunger
- oil
- pump
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model relates to an injection and hot extraction oil-well pump. An outer pump barrel, an outer connecting pipe and a joint are sequentially connected; a communication joint is arranged in the joint; an upper part of a lower joint is connected with a lower part of the joint; an upper part of the communication joint is connected with a lower part of a connecting rod; an upper part of the connecting rod is connected with a lower part of an oil inlet joint; an upper part of the oil inlet joint is connected with a lower part of an inner plunger; an oil inlet valve is arranged on an upper part of the inner plunger; an upper part of an inner pump barrel of an outer plunger is connected with an oil outlet valve; the inner pump barrel of the outer plunger is located between the outer pump barrel and the inner plunger; an oil inlet hole is arranged in the oil inlet joint; and a communication hole is arranged in the communication joint. After the inner pump barrel of the outer plunger is extracted from the outer pump barrel upwards, the outer pump barrel is communicated with the lower joint, injection and hot extraction can be carried out, and feedback force can be generated, so that friction between thickened oil and an oil extraction rod can be overcome in a thickened oil well; an outer wall of the inner pump barrel of the outer plunger is an inner wall of the plunger and is the pump barrel, and a casing structure is formed, so that the total length of a pump is reduced; and the injection and hot extraction oil-well pump has a simple structure, is convenient to process and transport, has no need to be assembled in site, and is convenient to descend into the well.
Description
Technical field
The utility model is the oil well pump that oil extraction in oil field is used, and is the oil well pump, particularly a kind of steam injection thermal recovery oil well pump that cooperates the thermal recovery steam injection to use.
Background technique
Existing thick oil pump kind is more, mainly containing two oil well pumps that vary in size is composed in series, but their complex structure, length is the length of two pumps, is not easy to processing and transportation, needs to go into the well after the pump barrel connection with two pumps at the scene, increase the difficulty of going into the well, install at the scene and also be difficult to guarantee assembly quality, the working life that might reduce pump, generation heavy economic losses.
Summary of the invention
The purpose of this utility model provides a kind of steam injection thermal recovery oil well pump, can produce feedback force and take out viscous crude, can satisfy the requirement of thermal recovery steam injection, and simple in structure, is convenient to process transportation and go into the well.
The purpose of this utility model is achieved in that and comprises outer pump barrel, outlet valve, oiling valve, pump barrel in the outer plunger, inner plunger, outer connecting pipe, fuel inlet fitting, connecting rod, joint, UNICOM's joint, lower contact, outer pump barrel, outer connecting pipe, joint connects successively, UNICOM's jiont treatment is in joint, UNICOM's upper end of joint face is by the inner circular bead location of joint, lower contact top is connected with the joint bottom, the lower end surface of UNICOM's joint is withstood in the lower contact upper-end surface, UNICOM joint top is connected with the connecting rod bottom, connecting rod top is connected with the bottom of fuel inlet fitting, fuel inlet fitting top is connected with the inner plunger bottom, the top of inner plunger is installed into fuel tap, pump barrel top connects outlet valve in the outer plunger, pump barrel is between outer pump barrel and the inner plunger in the outer plunger, the outer wall of pump barrel and the inwall fitted seal of outer pump barrel in the outer plunger, the inwall of pump barrel and the outer wall fitted seal of inner plunger have oil inlet hole in the plug on the fuel inlet fitting, on UNICOM's joint linked hole are arranged.
The beneficial effects of the utility model are: after pump barrel upwards proposes outer pump barrel in the outer plunger, outer pump barrel just with lower contact UNICOM, can adapt to the requirement of on thick oil well, carrying out steam injection thermal recovery with string matching, when descending in the outer plunger pump barrel in pressure difference with bear under the effect of high pressure surface product moment and produce downward feedback force, make it in thick oil well, can overcome frictional force between viscous crude and the sucker rod, therefore, the complex function that the utlity model has steam injection and take out viscous crude, because the outer wall of pump barrel is that the plunger inwall is pump barrel in the outer plunger, make it form sleeve structure, shortened the overall length of pump, simple in structure, be convenient to the processing transportation, do not need to assemble at the scene, can ensure the quality of products, can improve working life, also be convenient to go into the well.
Description of drawings
Accompanying drawing is the utility model embodiment's erection drawing.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described.
As can be seen from the figure, embodiment of the present utility model comprises outer pump barrel 1, outlet valve 2, oiling valve 3, pump barrel 4 in the outer plunger, inner plunger 5, outer connecting pipe 6, fuel inlet fitting 7, connecting rod 9, joint 10, UNICOM's joint 11, lower contact 13, outer pump barrel 1, outer connecting pipe 6, joint 10 connects successively, UNICOM's joint 11 is installed in the joint 10, UNICOM's joint 11 upper-end surfaces are by the inner circular bead location of joint 10, lower contact 13 tops are connected with joint 10 bottoms, the lower end surface that UNICOM's joint 11 is withstood in lower contact 13 upper-end surfaces, make up and down play of UNICOM's joint 11, UNICOM's joint 11 tops are connected with connecting rod 9 bottoms, connecting rod 9 tops are connected with the bottom of fuel inlet fitting 7, fuel inlet fitting 7 tops are connected with inner plunger 5 bottoms, the top of inner plunger 5 is installed into fuel tap 3, pump barrel 4 tops connect outlet valve 2 in the outer plunger, pump barrel 4 is between outer pump barrel 1 and the inner plunger 5 in the outer plunger, the outer wall of pump barrel 4 is processed by the pump barrel requirement of oil well pump by the plunger requirement processing inwall of oil well pump in the outer plunger, the outer wall of pump barrel 4 and the inwall fitted seal of outer pump barrel 1 in the outer plunger, the inwall of pump barrel 4 and the outer wall fitted seal of inner plunger 5 in the outer plug, oil inlet hole 8 is arranged on the fuel inlet fitting 7, linked hole 12 is arranged on UNICOM's joint 11.
The oiling valve 3 of pumping when up opens outlet valve 2 and cuts out, internal cavities increase on the pump barrel 4 in the outer plunger, well liquid enters in the outer plunger on the pump barrel 4 in the internal cavities through linked hole 12, oil inlet hole 8, inner plunger 5, oiling valve 3, the oiling valve 3 of pumping when descending cuts out outlet valve 2 and opens, internal cavities dwindles on the interior pump barrel 4 of outer plunger, and the well liquid that enters in it is discharged through outlet valve 2.When descending in the outer plunger pump barrel 4 make it in thick oil well, can overcome frictional force between viscous crude and the sucker rod in pressure difference with bear under the effect of high pressure surface product moment and produce downward feedback force, make the smooth descending oil pumping of sucker rod.When needing steam injection, after pump barrel 4 upwards proposed outer pump barrel 1 in the outer plunger, outer pump barrel 1 and lower contact 13 UNICOMs can be to steam injections in the well.
Claims (1)
1. steam injection thermal recovery oil well pump, comprise outer pump barrel (1), outlet valve (2), oiling valve (3), pump barrel (4) in the outer plunger, inner plunger (5), outer connecting pipe (6), fuel inlet fitting (7), connecting rod (9), joint (10), UNICOM's joint (11), lower contact (13), it is characterized in that: outer pump barrel (1), outer connecting pipe (6), joint (10) connects successively, UNICOM's joint (11) is installed in the joint (10), UNICOM's joint (11) upper-end surface is by the inner circular bead location of joint (10), lower contact (13) top is connected with joint (10) bottom, the lower end surface of UNICOM's joint (11) is withstood in lower contact (13) upper-end surface, UNICOM's joint (11) top is connected with connecting rod (9) bottom, connecting rod (9) top is connected with the bottom of fuel inlet fitting (7), fuel inlet fitting (7) top is connected with inner plunger (5) bottom, the top of inner plunger (5) is installed into fuel tap (3), pump barrel (4) top connects outlet valve (2) in the outer plunger, pump barrel (4) is between outer pump barrel (1) and the inner plunger (5) in the outer plunger, the outer wall of pump barrel (4) and the inwall fitted seal of outer pump barrel (1) in the outer plunger, the inwall of pump barrel (4) and the outer wall fitted seal of inner plunger (5) in the plug, oil inlet hole (8) is arranged on the fuel inlet fitting (7), linked hole (12) is arranged on UNICOM's joint (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220387732 CN202732299U (en) | 2012-07-28 | 2012-07-28 | Injection and hot extraction oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220387732 CN202732299U (en) | 2012-07-28 | 2012-07-28 | Injection and hot extraction oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732299U true CN202732299U (en) | 2013-02-13 |
Family
ID=47658004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220387732 Expired - Lifetime CN202732299U (en) | 2012-07-28 | 2012-07-28 | Injection and hot extraction oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732299U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925203A (en) * | 2014-04-25 | 2014-07-16 | 易鲁川 | Feedback type steam injection oil well pump |
| CN113915111A (en) * | 2021-12-09 | 2022-01-11 | 东营市汇诚石油工程技术有限责任公司 | Variable-displacement oil well pump |
-
2012
- 2012-07-28 CN CN 201220387732 patent/CN202732299U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925203A (en) * | 2014-04-25 | 2014-07-16 | 易鲁川 | Feedback type steam injection oil well pump |
| CN103925203B (en) * | 2014-04-25 | 2015-12-30 | 易鲁川 | Reaction type steam injection oil well pump |
| CN113915111A (en) * | 2021-12-09 | 2022-01-11 | 东营市汇诚石油工程技术有限责任公司 | Variable-displacement oil well pump |
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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: 20130213 |
|
| CX01 | Expiry of patent term |