CN2417301Y - Rod type pump - Google Patents
Rod type pump Download PDFInfo
- Publication number
- CN2417301Y CN2417301Y CN 00211715 CN00211715U CN2417301Y CN 2417301 Y CN2417301 Y CN 2417301Y CN 00211715 CN00211715 CN 00211715 CN 00211715 U CN00211715 U CN 00211715U CN 2417301 Y CN2417301 Y CN 2417301Y
- Authority
- CN
- China
- Prior art keywords
- standing valve
- slipper seal
- cover
- pump
- rod
- 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 rod type pump, which is composed of a traveling valve cover 1, an oil inlet joint 2, a sliding seal rod 3, an inner tube 4, a fixed valve cover 5, a lock nut 6, a fixed valve 7, a sliding seal sleeve 8, a joint 9, a limiting clamp spring 10 and a correcting tube 12. Since the utility model adopts the structure that the sliding rod, the correcting tube and the fixed valve which are fixed to the sliding seal sleeve, the rod type pump can be suitable for various inclined wells, the rod type pump has the advantages of good seal, high filling coefficient, high pump efficiency, simple structure and reasonable design, and is suitable for popularizing and applying on site, and a sucker rod is not easy to break and shed.
Description
The utility model relates to the downhole tool that uses on a kind of oilfield, particularly a kind of novel sucker rod pump.
In the oil production system of oil field, sucker rod pump is compared with common tubing pump to have fixed tubular column and can realize examining measures such as pump, pressure measurement, sand washing, shortens the activity duration, can economize on the use of funds and can reduce the labor intensity of operating worker.But the present grappling formula sucker rod pump of using exists following problem: 1, the single-ended fixedly incompatibility in top hole deviation, the sealing in the pumping process between pump and the oil pipe becomes motive sealing, increases wastage, simultaneously owing to the crowded effect seal ring of scraping easily falls.2, the same with conventional tubing pump do not have a booster cavity, and the unlatching of standing valve only depends on oily drift angle effect, and the filling index of pump is low.3, oil inlet passage is little, the viscosity of thickened oil height, and pump efficiency is low.
The purpose of this utility model is to provide a kind of novel sucker rod pump, and it can adapt to hole deviation, good seal, filling index height, pump efficiency height, the not easily broken rod-type pumping unit that takes off of sucker rod in low pressure oil well.
The purpose of this utility model is to realize like this, on the basis of grappling formula rod-type pumping unit, developed, swabbing action is identical with grappling formula rod-type pumping unit, difference is 1, has connect fuel inlet fitting (2) and connect slipper seal bar (3) below its travelling valve cover (1), slipper seal bar (3) is crossed standing valve (7) part, make this pump have sucker rod pump and the hollow two-fold advantage of pump more, the slipper seal bar connects extraordinary weighted lever below (3), can eliminate the flexural stress that sucker rod and plunger produce, prolong the life-span of rod string.2, standing valve (7) is fixed on the slipper seal cover (8), slipper seal cover (8) asks that with slipper seal bar (3) crack cooperates, standing valve (7) is to open by slipper seal cover (8) and the frictional force and the oily drift angle effect of slipper seal bar (3), and Lift passes through the spacing control of standing valve shield joint (9) by the jump ring (10) that is fixed on slipper seal cover (8) bottom.3, the screw connection point of standing valve cover and standing valve shield joint has oil-feed tank (11), has increased oil inlet passage.Standing valve cover lengthening, with outer and set upright the secondary Spielpassung that pipe (12) becomes pump, make the bottom of pump promptly seal and set upright, can adapt to hole deviation.
By the slipper seal bar with weighted lever by moving on the pump under the pump, the neutral point of rod string moves down, and the standing valve of pump is closed rapidly, travelling valve is opened rapidly, improves pump efficiency.Half machinery of standing valve is opened, and is beneficial to the formation booster cavity, produces High Pressure Difference.Simultaneously, oil inlet passage increases, and has improved the filling index of pump, the pump efficiency height.This pump top grappling sealing, sealing is set upright in the bottom, and good sealing effect can adapt to hole deviation again.
The utility model is owing to adopted sliding bar, set upright structure that pipe and standing valve be fixed on slipper seal cover and make that this sucker rod pump can adapt to various hole deviations, good seal, filling index height, pump efficiency height, sucker rod is not easily broken takes off.It is simple in structure, and is reasonable in design, is well suited for field popularization application.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is further specified.
As shown in the figure, the utility model is by travelling valve cover 1, fuel inlet fitting 2, slipper seal bar 3, interior pipe 4, standing valve cover 5, lock nut 6, standing valve 7, slipper seal cover 8, joint 9, spacing jump ring 10, setting upright pipe 12 forms, this rod-type pumping unit is to have connect plunger fuel inlet fitting 21 time at φ 57mm grappling formula rod-type pumping unit travelling valve cover, the slipper seal bar 3 that connects φ 19mm, slipper seal bar 3 is crossed standing valve 7 parts and is connected extraordinary weighted lever, standing valve 7 overlaps 8 interference fit with slipper seal, by the spacing sealing of step on the slipper seal cover 8, and with lock nut 6 locking, slipper seal bar 3 is secondary Spielpassung of pump with slipper seal cover 8, on the slipper seal cover 8 spacing jump ring 10 is arranged, the Lift of control standing valve 7, standing valve cover 5 and standing valve shield joint 9 usefulness are threaded, have 4 60 * 20 oil-feed tank 11 at screw connection point, standing valve cover 5 is lengthened to 748mm, set upright sealing with the pipe 12 of setting upright of outside for the secondary Spielpassung of pump, set upright sealing segment length 632mm.
Claims (2)
1, a kind of novel sucker rod pump, by travelling valve cover (1), fuel inlet fitting (2), slipper seal bar (3), interior pipe (4), standing valve cover (5), lock nut (6), standing valve (7), slipper seal cover (8), joint (9), spacing jump ring (10), setting upright pipe (12) forms, it is characterized in that: connect plunger fuel inlet fitting (2) under the travelling valve cover (1), slipper seal bar (3), slipper seal bar (3) is crossed standing valve (7) part and is connected extraordinary weighted lever, standing valve (7) and slipper seal cover (8) interference fit, on slipper seal cover (8), limited step is arranged, lock nut (6) is locked on the standing valve, slipper seal bar (3) is the secondary Spielpassung of pump with slipper seal cover (8), spacing jump ring (10) is arranged on the slipper seal cover (8), standing valve cover (5) and standing valve shield joint (9) are with being threaded, and lengthening standing valve cover (5) is the secondary Spielpassung of pump with the pipe (12) of setting upright of outside.
2, novel sucker rod pump according to claim 1 is characterized in that: the screw connection point at standing valve cover (5) and standing valve shield joint (9) has four oil-feed tanks (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00211715 CN2417301Y (en) | 2000-04-27 | 2000-04-27 | Rod type pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00211715 CN2417301Y (en) | 2000-04-27 | 2000-04-27 | Rod type pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2417301Y true CN2417301Y (en) | 2001-01-31 |
Family
ID=33578362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00211715 Expired - Fee Related CN2417301Y (en) | 2000-04-27 | 2000-04-27 | Rod type pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2417301Y (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
- 2000-04-27 CN CN 00211715 patent/CN2417301Y/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: 20010131 |