CN2414220Y - Low-pressure high-efficiency oil pump - Google Patents
Low-pressure high-efficiency oil pump Download PDFInfo
- Publication number
- CN2414220Y CN2414220Y CN 00211451 CN00211451U CN2414220Y CN 2414220 Y CN2414220 Y CN 2414220Y CN 00211451 CN00211451 CN 00211451 CN 00211451 U CN00211451 U CN 00211451U CN 2414220 Y CN2414220 Y CN 2414220Y
- Authority
- CN
- China
- Prior art keywords
- standing valve
- pump
- oil
- valve cover
- slipper seal
- 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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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a low-pressure efficiency promoting oil-well pump used for mining low pressure oil wells. The utility model is composed of a pump barrel 1, a piston 2, a traveling valve 3, a traveling valve cover 4, a fixing valve 8, a fixing valve seat 9, a fixing valve cover 10, a fixed valve cover joint 12, an oil inlet joint 5 connected with the lower portion of a lower traveling valve cover 4, a sliding seal rod 6, a sliding seal sleeve 7 and a limiting clamp spring 11. The oil-well pump has the advantages of novel design, reliable performance., large displacement, high pump efficiency, long service life, etc., and the oil-well pump can avoid or decrease downhole breaking and shedding accidents. The utility model which is utilized can effectively improve the mining effect of low pressure oil pumping wells, and can avoid or decrease the downhole breaking and shedding accidents.
Description
The utility model relates to a kind of device that is used for the low pressure oil well exploitation: low pressure synergy oil well pump.
Along with the continuity of oil field development process, oil-well strata pressure descends gradually, heavy oil block stratum energy wretched insufficiency particularly, and the oil mining effect is worse and worse.In such cases, because present normally used tubing pump does not have booster cavity, the unlatching of standing valve only depends on oily drift angle effect, thereby the filling index of pump is low, and hollow pump is then less because of the little discharge capacity of oily flow area.The heavy oil block pumping well is under conventional oil production technology situation, and sucker rod is easily broken to be taken off, and makes the pump detection and workover workload increase, and influences the oil well ordinary production.
The purpose of this utility model be to provide a kind of in the lower low pressure pumping well of strata pressure big, the not easily broken low pressure synergy oil well pump that takes off of sucker rod of pump efficiency height, discharge capacity.
The utility model is to realize like this.This kind oil well pump is made up of pump barrel, plunger, travelling valve, following travelling valve cover, fuel inlet fitting, slipper seal bar, slipper seal cover, standing valve, standing valve cover, spacing jump ring, standing valve shield joint, be by the fuel inlet fitting that is threaded below the following travelling valve cover of the plunger of common tubing pump, connect a slipper seal bar under the fuel inlet fitting, the slipper seal bar is crossed the standing valve part, makes this kind pump have the big and hollow high two-fold advantage of pump pump efficiency more of common tubular type discharge capacity concurrently; Connect an extraordinary weighted lever under the above-mentioned slipper seal bar, that is by the slipper seal bar with weighted lever by moving on the pump under the pump, can eliminate the flexural stress that sucker rod and plunger produce, prolonged the working life of sucker rod and oil well pump, avoid or reduce the generation of down-hole break-off accident.This synergy oil well pump is when upstroke, be fixed on standing valve that slipper seal puts and under the effect of the frictional force of slipper seal cover and slipper seal bar and oil stream nature pressure reduction, open, its Lift by the spacing jump ring that is fixed on slipper seal cover bottom by the spacing control of standing valve shield joint.The screw connection point of standing valve cover and standing valve shield joint has 4 roomy oil-feed tanks, can make its bottom and side oil-feed simultaneously, and the oil-feed area increases.During down stroke, under the effect of extraordinary weighted lever, standing valve is closed rapidly, forms booster cavity at an upper portion thereof, and plunger continues the liquid in the descending compression booster cavity, forms High Pressure Difference rapidly, opens down travelling valve and makes liquid enter pump barrel smoothly, is lifted to well head.
The utility model modern design, reliable performance is compared with common tubing pump and to be had the big advantage of discharge capacity, and standing valve half machinery opens, and helps forming hyperbaric chamber, produces High Pressure Difference; Compare with hollow pump more, it passes in and out oily flow area increase, especially standing valve part, can improve the filling index and the discharge capacity of pump, helps improving pump efficiency; Compare with the conventional pump oil production technology, weighted lever can be eliminated the flexural stress that sucker rod and plunger produce by moving on the pump under the pump, prolongs the life-span of sucker rod and pump, avoids or reduce the generation of down-hole break-off accident.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing enforcement of the present utility model is further described.
As shown in the figure, the utility model is made up of pump barrel 1, plunger 2, travelling valve 3, travelling valve cover 4, fuel inlet fitting 5, slipper seal bar 6, slipper seal cover 7, standing valve 8, standing valve seat 9, standing valve cover 10, spacing jump ring 11 and standing valve shield joint 12, its structure, assembling feature are as follows: place plunger 2 following travelling valve covers 4 lower ends in the pump barrel 1 by the fuel inlet fitting 5 that has been threaded, fuel inlet fitting is connected to slipper seal bar 65 times, and the slipper seal bar connects extraordinary weighted lever under 6 lower ends; Be set with slipper seal cover 7 on the slipper seal bar 6, the two is the secondary Spielpassung of pump, and slipper seal is overlapped 7 upper and lowers and is respectively installed with standing valve 8 and spacing jump ring 11, and standing valve 8 is a drive fit with slipper seal cover 7, by the spacing sealing of step on the stuffing box gland 7, and use nut check; Pump barrel 1 lower end is connected to standing valve cover 10, is provided with standing valve seat 9 in it, and standing valve cover 10 times is by the standing valve shield joint 12 that is threaded.Wherein, slipper seal bar 6 is the Φ 22-32 round bar of long 4.5m～5.0m, its upper end have with fuel inlet fitting to the screw thread that is connected, the lower end is provided with and connects the joint of extraordinary weighted lever below the usefulness.The sleeve that slipper seal cover 7 matches for long 442mm, internal diameter and seal bar 6 diameters, its top periphery is provided with a usefulness so that the close limited step of spacing sealing is overlapped in standing valve and slipper seal.Standing valve 8 is a hollow cylinder, and its bottom periphery is made the sphere that matches with standing valve seat 9.Standing valve cover 10, joint 12 internal diameters are enlarged to Φ 82mm, and the two screw connection point is uniformly distributed with the bar shaped oil-feed tank of 4 long 60mm, wide 20mm along the circumference.
Claims (1)
1, a kind of low pressure synergy oil well pump, form by pump barrel (1), plunger (2), travelling valve (3), travelling valve cover (4), standing valve (8), standing valve cover (10) and standing valve shield joint (12), it is characterized in that: place the interior following travelling valve cover of plunger (2) (4) lower end of pump barrel (1) by the fuel inlet fitting that has been threaded (5), be connected to slipper seal bar (6) under the fuel inlet fitting (5), slipper seal bar (6) lower end is by connecing extraordinary weighted lever under the joint; Be set with slipper seal cover (7) on the slipper seal bar (6), stuffing box gland (7) upper and lower is respectively installed with standing valve (8) and spacing jump ring (11); Pump barrel (1) lower end is connected to standing valve cover (10), is provided with standing valve seat (9) in it, and standing valve cover (10) and joint (12) are uniformly distributed with the bar shaped oil-feed tank by being threaded along the circumference at its screw connection point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00211451 CN2414220Y (en) | 2000-04-08 | 2000-04-08 | Low-pressure high-efficiency oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00211451 CN2414220Y (en) | 2000-04-08 | 2000-04-08 | Low-pressure high-efficiency oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2414220Y true CN2414220Y (en) | 2001-01-10 |
Family
ID=33578147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00211451 Expired - Fee Related CN2414220Y (en) | 2000-04-08 | 2000-04-08 | Low-pressure high-efficiency oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2414220Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209846A (en) * | 2018-09-07 | 2019-01-15 | 中国石油化工股份有限公司 | A kind of super―heavy oil sand-preventing pump |
-
2000
- 2000-04-08 CN CN 00211451 patent/CN2414220Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209846A (en) * | 2018-09-07 | 2019-01-15 | 中国石油化工股份有限公司 | A kind of super―heavy oil sand-preventing 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: 20010110 |