CN2589666Y - Settled sand burying-proof standing valve for oil-well pump - Google Patents
Settled sand burying-proof standing valve for oil-well pump Download PDFInfo
- Publication number
- CN2589666Y CN2589666Y CN 02251590 CN02251590U CN2589666Y CN 2589666 Y CN2589666 Y CN 2589666Y CN 02251590 CN02251590 CN 02251590 CN 02251590 U CN02251590 U CN 02251590U CN 2589666 Y CN2589666 Y CN 2589666Y
- Authority
- CN
- China
- Prior art keywords
- sand
- valve
- oil
- valve body
- 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 settled sand burying-proof standing valve for an oil-well pump, which is especially suitable for an oil well with sand. The settled sand burying-proof standing valve is connected with the lower end of the oil-well pump through a lower connector of a pump cylinder; a fixing valve body, a valve ball and a valve seat are arranged above a settled sand cylinder connector and hung; the lower end of the settled sand cylinder connector is connected with a tail pipe through a connecting hoop; the lower end of the tail pipe is provided with one sand proof cap. In the process of oil suction, well liquid can enter from a side hole of the settled sand cylinder connector and can flow into the pump cylinder through a side taper hole of the fixing valve body; sand in the well liquid can sink because of being subjected to the influence of self gravitation; the sand can sink into the tail pipe through a lower connector of the settled sand cylinder along the conical surface of the fixing valve body; thereby, the standing valve buried by the sand can be prevented.
Description
The utility model relates to a kind of oil field and buries standing valve with the oil well pump sand setting is anti-, is specially adapted to contain the sand oil well.
The sand-proof oil-well pump standing valve of oil field use at present, fixed valve body directly is connected on the pump barrel, well liquid enters in the pump barrel by fixed valve body top oil-through hole, in the oil well pump pumping process, sand grains falls after rise along standing valve cover top oil-through hole, enter in the fixed valve body, sand buries standing valve, causes oil well pump to lose efficacy.
The purpose of this utility model provides a kind of oil well pump sand setting prevents burying standing valve, and it can prevent that sand grains from entering in the standing valve, directly enters in the tail pipe, thereby prevents that effectively sand from burying standing valve.
The utility model is achieved in that this oil well pump sand setting is anti-and buries standing valve and be made up of pump barrel lower contact, outer tube joint, fixed valve body, valve ball, valve seat, sand-precipitating tube joint, screen cloth cover, box cupling, tail pipe, sand control cap, there is a conical surface fixed valve body upper end, the side radially has one or more bellmouths, fixed valve body, valve ball, valve seat are installed on the top of sand-precipitating tube joint and unsettled, sand-precipitating tube joint lower end links to each other with tail pipe by box cupling, a sand control cap is equipped with in the tail pipe lower end, and sand setting prevents that burying standing valve is connected the oil well pump lower end by the pump barrel lower contact.During the oil well pump upstroke, the anti-standing valve upper pressure of burying of sand setting reduces, and under the well action of hydraulic force, well liquid enters from sand-precipitating tube joint side opening by the screen cloth cover, opens valve ball, flows in the pump barrel by standing valve side bellmouth.When the oil well pump down stroke, the anti-standing valve upper pressure of burying of sand setting increases, valve ball is closed, well liquid enters on the pump in the oil pipe, given rise to ground, sand grains in the well liquid is sunk by the influence of self gravitation, sink to tail pipe along the fixed valve body conical surface by the sand-precipitating tube joint, thereby prevent that sand from burying standing valve, the while makes the fixed valve body screw thread that compresses valve seat not bear axial tension owing to the top that fixed valve body, valve ball, valve seat are installed on the sand-precipitating tube joint is also unsettled, it is secondary loosening to eliminate valve, avoid valve seat end face thorn bad, improved the sealing of valve pair, prolong oil well repair free period.
The utility model novel structure, sand setting is effective, can prevent effectively that sand from burying standing valve.
The utility model is provided by following examples:
Fig. 1 is the utility model structure principle chart.
Below in conjunction with accompanying drawing the utility model is described in detail.
This oil well pump sand setting is anti-to bury standing valve by pump barrel lower contact (1), outer tube joint (2), fixed valve body (3), valve ball (4), valve seat (5), sand-precipitating tube joint (6), screen cloth cover (7), box cupling (8), tail pipe (9), sand control cap (10) is formed, there is a conical surface fixed valve body (3) upper end, the side radially has one or more bellmouths, fixed valve body (3), valve ball (4), valve seat (5) is installed on the top of sand-precipitating tube joint (6) and unsettled, sand-precipitating tube joint (6) lower end links to each other with tail pipe (9) by box cupling (8), a sand control cap (10) is equipped with in tail pipe (9) lower end, and sand setting prevents that burying standing valve is connected the oil well pump lower end by pump barrel lower contact (1).During the oil well pump upstroke, the anti-standing valve upper pressure of burying of sand setting reduces, and under the well action of hydraulic force, well liquid enters from sand-precipitating tube joint (6) side opening by screen cloth cover (7), opens valve ball (4), flows in the pump barrel by fixed valve body (3) side bellmouth.When the oil well pump down stroke, the anti-standing valve upper pressure of burying of sand setting increases, valve ball (4) is closed, well liquid enters on the pump in the oil pipe, given rise to ground, sand grains in the well liquid is sunk by the influence of self gravitation, sink to tail pipe (9) along fixed valve body (3) conical surface by sand-precipitating tube joint (6), thereby prevent that sand from burying standing valve, simultaneously because fixed valve body (3), valve ball (4), valve seat (5) is installed on the top of sand-precipitating tube joint (6) and unsettled, makes fixed valve body (3) screw thread that compresses valve seat (5) not bear axial tension, it is secondary loosening to eliminate valve, avoid valve seat (5) end face thorn bad, improved the sealing of valve pair, prolong oil well repair free period.
Claims (2)
1, the anti-standing valve that buries of a kind of oil well pump sand setting, form by pump barrel lower contact (1), outer tube joint (2), fixed valve body (3), valve ball (4), valve seat (5), sand-precipitating tube joint (6), screen cloth cover (7), box cupling (8), tail pipe (9), sand control cap (10), it is characterized in that there is a conical surface fixed valve body (3) upper end, the side radially has one or more bellmouths.
2, oil well pump sand setting according to claim 1 is anti-buries standing valve, it is characterized in that fixed valve body (3), valve ball (4), unsettled sand-precipitating tube joint (6) top that is installed in of valve seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02251590 CN2589666Y (en) | 2002-12-13 | 2002-12-13 | Settled sand burying-proof standing valve for oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02251590 CN2589666Y (en) | 2002-12-13 | 2002-12-13 | Settled sand burying-proof standing valve for oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2589666Y true CN2589666Y (en) | 2003-12-03 |
Family
ID=33721386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02251590 Expired - Fee Related CN2589666Y (en) | 2002-12-13 | 2002-12-13 | Settled sand burying-proof standing valve for oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2589666Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334919A (en) * | 2012-06-04 | 2013-10-02 | 中国石油化工股份有限公司江苏油田分公司 | Triple-channel sand prevention fixing valve |
| CN103821476A (en) * | 2014-03-14 | 2014-05-28 | 胡和萍 | Fixing valve |
| GB2535185A (en) * | 2015-02-11 | 2016-08-17 | Weatherford Uk Ltd | Valve assembly |
-
2002
- 2002-12-13 CN CN 02251590 patent/CN2589666Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334919A (en) * | 2012-06-04 | 2013-10-02 | 中国石油化工股份有限公司江苏油田分公司 | Triple-channel sand prevention fixing valve |
| CN103334919B (en) * | 2012-06-04 | 2016-03-30 | 中国石油化工股份有限公司江苏油田分公司 | Triple channel sand prevention standing valve |
| CN103821476A (en) * | 2014-03-14 | 2014-05-28 | 胡和萍 | Fixing valve |
| GB2535185A (en) * | 2015-02-11 | 2016-08-17 | Weatherford Uk Ltd | Valve assembly |
| US10538982B2 (en) | 2015-02-11 | 2020-01-21 | Weatherford U.K. Limited | Valve assembly with a filter chamber |
| GB2535185B (en) * | 2015-02-11 | 2021-01-13 | Weatherford Uk Ltd | Valve assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |