CN201696267U - Block-prevention oil pump - Google Patents
Block-prevention oil pump Download PDFInfo
- Publication number
- CN201696267U CN201696267U CN2010201154451U CN201020115445U CN201696267U CN 201696267 U CN201696267 U CN 201696267U CN 2010201154451 U CN2010201154451 U CN 2010201154451U CN 201020115445 U CN201020115445 U CN 201020115445U CN 201696267 U CN201696267 U CN 201696267U
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- CN
- China
- Prior art keywords
- valve
- deposit cavity
- plunger
- traveling
- 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 - Fee Related
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Abstract
The utility model discloses a block-prevention oil pump, belonging to the petroleum sucker-rod exploration oil pump. The utility model comprises a pump barrel (6), a plunger (7), a fixed valve (13) and a traveling valve (2), wherein, a hollow pull rod (4) is connected to the upper part of the plunger (7), the upper end of the hollow pull rod (4) is connected with the traveling valve (2); the lower end of the pump barrel (6) is connected with a deposit cavity outer barrel (11), a deposit cavity inner barrel (16) is arranged in a connector (18) under the deposit cavity outer barrel (11); the fixed valve (13) is arranged on the top of the deposit cavity inner barrel (16), an island valve cap (12) is arranged at the upper part of the fixed valve (13), the lower parts of the inner holes of a fixed valve seat (14) and a traveling valve seat (3) are reverse conical surfaces; a or a plurality of wide sand control grooves (8) is arranged in the middle of the plunger (7). The utility model greatly improves the strength of the traveling valve cap and has the effects of scale prevention, automatic deposit, sand scraping and block prevention.
Description
Technical field:
The utility model relates to a kind of anti-jam oil well pump, and belonging to oil has bar exploitation oil pump.
Background technique:
At present in rod pumping system, the underground work situation of oil well pump is very complicated, at first the sand grains in the well liquid enters standing valve easily influences the motion of valve ball and the sealability of valve pair, oiling valve is owing to be subjected to the influence of lower end pulling force simultaneously, valve seat is easy to become flexible, cause seal failure, influence the oil well pump proper functioning, secondly owing to reasons such as well liquid salinity height, cause well liquid lifting process oil pipe, sleeve pipe, sucker rod, oil well pump working barrel inwall, move about and key position fouling such as standing valve, cause the motion valve body to be not closed completely, cause deep-well pump to lose efficacy, cause cost to increase to crude oil production, also improved the oil well production management difficulty; The 3rd is that the mobile valve bonnet of common oil well pump all directly connects with plunger, and the valve bonnet size is less, small pump diameter oil well pump particularly, and valve bonnet intensity is low, area of passage is little, and the valve bonnet that often moves about ruptures, and influences pump efficiency.
Summary of the invention:
The purpose of this utility model provides a kind of anti-jam oil well pump, and it can solve well because of sand grains causes standing valve, traveling valve lost efficacy; Prevent fouling in pump barrel, mobile valve seat, the fixed valve base; Solve the small pump diameter problems such as valve bonnet easy-rupturing of moving about.
The utility model is achieved in that mainly by pump barrel, plunger, standing valve, traveling valve is formed, its plunger upper part is connected to a hollow draw-bar, termination traveling valve on the hollow draw-bar, traveling valve by thread set on hollow draw-bar, the pump barrel lower end is connected to a deposit cavity urceolus, pump barrel is connected by pump barrel lower contact and the upper connection of deposit cavity urceolus with the deposit cavity urceolus, a deposit cavity inner core is housed in the lower contact of deposit cavity urceolus, standing valve is contained in deposit cavity inner core top, an island shape valve bonnet is equipped with on standing valve top, the deposit cavity inner core is set upright by righting block, standing valve valve seat and traveling valve valve seat endoporus bottom are inverted cone surface, and the plunger middle part is provided with one or multi-channel wide anti-sand launder.When sucker rod drives in the up process of plunger, traveling valve cuts out, the up pump internal pressure that causes of plunger reduces, and down-hole crude oil backs down standing valve and enters in the pump by standing valve island shape valve bonnet under pressure, crude oil is flushed on the deposit cavity outer tube inner wall when entering in the pump, under the stopping of deposit cavity urceolus, reduce liquid speed, weaken prop-carrying capacity, impel solid sand grains generation sedimentation, sink to deposit cavity, thereby play anti-jam effect; Standing valve valve seat and traveling valve valve seat endoporus bottom are inverted cone surface, make to pass two valve seat flow rate of fluid and direction changes, and prevent solid matter deposition, fouling; Plunger middle part is provided with one or multi-channel sand control sipes, has the ability of strike-ofing of scale removal voluntarily, prevents the plunger jam; Traveling valve is connected by hollow draw-bar with plunger, has strengthened the size of traveling valve, can effectively increase the traveling valve area of passage, reduce the throttle effect of pump barrel and traveling valve, improve the discharge opeing ability, improved the intensity of traveling valve valve bonnet greatly, reduced the generation of fracture accident.
The utility model is simple in structure, and operation is convenient, solves because of deposition causes standing valve, traveling valve to lose efficacy; Prevent fouling in pump barrel, traveling valve valve seat, the standing valve valve seat; Improve the intensity of traveling valve valve bonnet, reduced the generation of fracture accident.
Description of drawings:
Fig. 1 is the utility model structure principle chart
Embodiment:
Below in conjunction with accompanying drawing the utility model is described in detail:
The utility model is mainly by pump barrel (6), plunger (7), standing valve (13), traveling valve (2) is formed, its plunger (7) top is connected to a hollow draw-bar (4), hollow draw-bar (4) is gone up a traveling valve of termination (2), traveling valve (2) by thread set on hollow draw-bar (4), pump barrel (6) upper end connects pump barrel joint (5), pump barrel (6) lower end is connected to a deposit cavity urceolus (11), pump barrel (6) is connected by pump barrel (6) lower contact (9) and deposit cavity urceolus (11) upper connection (10) with deposit cavity urceolus (11), a deposit cavity inner core (16) is housed in deposit cavity urceolus (11) lower contact (18), standing valve (13) is contained in deposit cavity inner core (16) top, an island shape valve bonnet (12) is equipped with on standing valve (13) top, deposit cavity inner core (16) is set upright by righting block (15), standing valve valve seat (14) and traveling valve valve seat (3) endoporus bottom are inverted cone surface, and plunger (7) middle part is provided with one or multi-channel wide anti-sand launder (8).When sucker rod drives in the up process of plunger (7), traveling valve (2) cuts out, the up pump internal pressure that causes of plunger (7) reduces, and down-hole crude oil backs down standing valve (13) and enters in the pump by island shape valve bonnet (12) under pressure, crude oil is flushed on deposit cavity urceolus (11) inwall when entering in the pump, under the stopping of deposit cavity urceolus (11), reduce liquid speed, weaken prop-carrying capacity, impel solid sand grains generation sedimentation, sink in the deposit cavity (17), thereby play anti-jam effect; Standing valve valve seat (3) and traveling valve valve seat (14) endoporus adopt inverted cone, make to pass standing valve valve seat (3) and traveling valve valve seat (14) flow rate of fluid and direction and change, and prevent that solid matter from depositing, fouling; Plunger (7) middle part is provided with one or multi-channel sand control sipes, has the ability of strike-ofing of scale removal voluntarily, prevents plunger (7) jam; Traveling valve (2) is connected by hollow draw-bar (4) with plunger (7), strengthened the size of traveling valve (2), can effectively increase traveling valve (2) area of passage, reduce the throttle effect of pump barrel (6) and traveling valve (2), improve the discharge opeing ability, improve the intensity of traveling valve (2) valve bonnet (1) greatly, reduced the generation of fracture accident.
Claims (3)
1. anti-jam oil well pump, it is mainly by pump barrel (6), plunger (7), standing valve (13), traveling valve (2) is formed, it is characterized in that plunger (7) top is connected to a hollow draw-bar (4), hollow draw-bar (4) is gone up a traveling valve of termination (2), traveling valve (2) by thread set on hollow draw-bar (4), pump barrel (6) lower end is connected to a deposit cavity urceolus (11), a deposit cavity inner core (16) is housed in deposit cavity urceolus (11) lower contact (18), standing valve (13) is contained in deposit cavity inner core (16) top, an island shape valve bonnet (12) is equipped with on standing valve (13) top, and deposit cavity inner core (16) is set upright by righting block (15).
2. according to the described anti-jam oil well pump of claim 1, it is characterized in that standing valve valve seat (14) and traveling valve valve seat (3) endoporus bottom are inverted cone surface.
3. according to the described anti-jam oil well pump of claim 1, it is characterized in that plunger (7) middle part is provided with one or multi-channel wide anti-sand launder (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201154451U CN201696267U (en) | 2010-02-08 | 2010-02-08 | Block-prevention oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201154451U CN201696267U (en) | 2010-02-08 | 2010-02-08 | Block-prevention oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696267U true CN201696267U (en) | 2011-01-05 |
Family
ID=43397508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201154451U Expired - Fee Related CN201696267U (en) | 2010-02-08 | 2010-02-08 | Block-prevention oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696267U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397576A (en) * | 2019-06-13 | 2019-11-01 | 中国石油化工股份有限公司 | Oil well pump |
| CN111779658A (en) * | 2020-07-03 | 2020-10-16 | 盐城华远石油机械有限公司 | Sand prevention rod type oil well pump |
-
2010
- 2010-02-08 CN CN2010201154451U patent/CN201696267U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397576A (en) * | 2019-06-13 | 2019-11-01 | 中国石油化工股份有限公司 | Oil well pump |
| CN111779658A (en) * | 2020-07-03 | 2020-10-16 | 盐城华远石油机械有限公司 | Sand prevention rod type oil well pump |
| CN111779658B (en) * | 2020-07-03 | 2022-02-08 | 盐城华远石油机械有限公司 | Sand prevention rod type oil well pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20140208 |