CN204061120U - Gas-proof oil well pump suitable for carbon dioxide drives high gas-liquid ratio oil well - Google Patents
Gas-proof oil well pump suitable for carbon dioxide drives high gas-liquid ratio oil well Download PDFInfo
- Publication number
- CN204061120U CN204061120U CN201420407188.7U CN201420407188U CN204061120U CN 204061120 U CN204061120 U CN 204061120U CN 201420407188 U CN201420407188 U CN 201420407188U CN 204061120 U CN204061120 U CN 204061120U
- Authority
- CN
- China
- Prior art keywords
- plunger
- oil well
- liquid ratio
- gas
- pump
- 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
Links
- 239000003129 oil well Substances 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 title claims abstract description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 title description 2
- 239000001569 carbon dioxide Substances 0.000 title description 2
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000010913 used oil Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 13
- 230000002265 prevention Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a mechanical oil recovery technical field belongs to one kind and is applicable to CO2An air-proof oil well pump for driving oil wells with high gas-liquid ratio. The utility model discloses an effectual solution CO2Drive high gas-liquid ratio oil well pump efficiency and descend, easily take place "airlock", pole pipe vibrations serious scheduling problem design, wherein pump barrel 2 passes through threaded connection with extension short circuit 1, and standing valve assembly 3 passes through threaded connection in pump barrel 2 lower part. The plunger 4 is arranged inside the pump barrel 2, and the traveling valve assembly 6 is connected to the upper part of the plunger 4 through threads. A pressure guide hole 5 is formed in the side wall of the lower end of the plunger 4; the utility model discloses mainly used oil field CO2Drive high gas-liquid ratio oil recovery well, it is high to have a pump efficiency, effectively prevents "airlock", slows down the vibrations of pole pipe, simple structure, easily processing, does not increase advantages such as extra cost.
Description
Technical field: the utility model relates to technical field of tertiary oil recovery, belongs to one and is applicable to CO
2drive the airlock-resistant oil pump of high gas-liquid ratio oil well.
Background technique: current domestic gas prevention pump is generally on the basis of common oil well pump, increases unique construction to reach gas-tight effect.But structure is comparatively complicated, difficulty of processing is large, simultaneously because gas-tight mechanism is different, when gas liquid ratio is larger, can not effectively prevent " gas lock " and mitigation of gases on the impact of rod tube.In order to effectively solve CO
2drive high gas-liquid ratio oil-well pump of oil well pump efficiency to decline, rod tube vibrations are serious, easily problems such as " gas locks " occur, the present invention proposes one and be applicable to CO
2drive the airlock-resistant oil pump of high gas-liquid ratio oil well, this gas prevention pump is applicable to gas liquid ratio at 500m
3/ m
3within CO
2drive high gas-liquid ratio oil well, support the use with gas anchor, pump efficiency can improve more than 10%.The generation of " gas lock " phenomenon can be prevented, and effectively slow down rod tube vibrations.
Summary of the invention: the purpose of this utility model is that development effectively can improve pump efficiency, prevents " gas lock ", and the one slowing down rod tube vibrations is applicable to CO
2drive the airlock-resistant oil pump of high gas-liquid ratio oil well.
The purpose of this utility model is achieved by the following technical solution: it by lengthening short circuit, pump barrel, standing valve assembly, plunger, traveling valve assembly form; Wherein pump barrel is threaded connection with lengthening short circuit, and standing valve assembly is threaded connection in pump barrel bottom, and plunger is arranged on pump barrel inside, and traveling valve assembly is threaded connection in plunger upper part, and the sidewall of plunger lower end arranges pressure guide hole.
Pressure guide hole number is even number, and grouping is symmetricly set on the sidewall of plunger lower end, often organizes two.
Compared with the prior art, tool has the following advantages the utility model:
1), pump efficiency is high, effectively prevents " gas lock ", slows down rod tube vibrations;
2), structure is simple, is easy to processing, and do not increase extra cost.
Accompanying drawing illustrates: Fig. 1 is the utility model schematic diagram.
In figure: 1-lengthens short circuit, 2-pump barrel, 3-standing valve assembly, 4-plunger, 5-pressure guide hole, 6-traveling valve assembly.
Embodiment: be further described below in conjunction with accompanying drawing the utility model, it by lengthening short circuit 1, pump barrel 2, standing valve assembly 3, plunger 4, traveling valve assembly 6 form; Wherein pump barrel 2 is threaded connection with lengthening short circuit 1, and standing valve assembly 3 is threaded connection in pump barrel 2 bottom, and it is inner that plunger 4 is arranged on pump barrel 2, and traveling valve assembly 6 is threaded connection in plunger 4 top, and the sidewall of plunger 4 lower end arranges pressure guide hole 5.
Pressure guide hole 5 number is even number, and grouping is symmetricly set on the sidewall of plunger 4 lower end, often organizes two.
During on-the-spot application, first oil well is entered under being connected with supporting gas anchor by the standing valve assembly 3 of the utility model lower end, the lengthening short circuit 1 of upper end is connected with oil pipe by tubing coupling, plunger 4 is connected with sucker rod by traveling valve assembly 6, plunger 4 lower end sidewall is provided with pressure guide hole 5, pressure guide hole 5 number is 6, and points 3 groups are symmetricly set on the sidewall of plunger 4 lower end, often organizes two.Lengthening short circuit 1 section is exposed to close to pressure guide hole during top dead center 5 when plunger 4 moves to, in plunger 4 internal pressure and oil pipe, head of liquid reaches balance instantaneously, standing valve in standing valve assembly 3 is closed, when plunger 4 is descending, due to the travelling valve pressure at two ends balance in traveling valve assembly 6, make travelling valve be easier to open, thus reach raising pump efficiency, prevent " gas lock ", slow down the object of rod tube vibrations.
Claims (2)
1. one kind is applicable to CO
2drive the airlock-resistant oil pump of high gas-liquid ratio oil well, it is characterized in that: it by lengthening short circuit (1), pump barrel (2), standing valve assembly (3), plunger (4), traveling valve assembly (6) form; Wherein pump barrel (2) is threaded connection with lengthening short circuit (1), standing valve assembly (3) is threaded connection in pump barrel (2) bottom, it is inner that plunger (4) is arranged on pump barrel (2), traveling valve assembly (6) is threaded connection in plunger (4) top, the sidewall of plunger (4) lower end is arranged pressure guide hole (5).
2. one according to claim 1 is applicable to CO
2drive the airlock-resistant oil pump of high gas-liquid ratio oil well, it is characterized in that: pressure guide hole (5) number is even number, and grouping is symmetricly set on the sidewall of plunger (4) lower end, often organize two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407188.7U CN204061120U (en) | 2014-07-16 | 2014-07-16 | Gas-proof oil well pump suitable for carbon dioxide drives high gas-liquid ratio oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407188.7U CN204061120U (en) | 2014-07-16 | 2014-07-16 | Gas-proof oil well pump suitable for carbon dioxide drives high gas-liquid ratio oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061120U true CN204061120U (en) | 2014-12-31 |
Family
ID=52202649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420407188.7U Expired - Lifetime CN204061120U (en) | 2014-07-16 | 2014-07-16 | Gas-proof oil well pump suitable for carbon dioxide drives high gas-liquid ratio oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321036A (en) * | 2015-07-10 | 2017-01-11 | 中国石油天然气股份有限公司 | CO 2 flooding high gas-liquid ratio oil well gas-proof anticorrosion lifting process |
-
2014
- 2014-07-16 CN CN201420407188.7U patent/CN204061120U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321036A (en) * | 2015-07-10 | 2017-01-11 | 中国石油天然气股份有限公司 | CO 2 flooding high gas-liquid ratio oil well gas-proof anticorrosion lifting process |
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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: 20141231 |
|
| CX01 | Expiry of patent term |