CN207073456U - A kind of anti-seizing oil pump - Google Patents
A kind of anti-seizing oil pump Download PDFInfo
- Publication number
- CN207073456U CN207073456U CN201720854757.6U CN201720854757U CN207073456U CN 207073456 U CN207073456 U CN 207073456U CN 201720854757 U CN201720854757 U CN 201720854757U CN 207073456 U CN207073456 U CN 207073456U
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- CN
- China
- Prior art keywords
- barrel
- pipe
- piston
- beam hanger
- oil 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
A kind of anti-seizing oil pump disclosed in the utility model, including oil pipe, righting hoop, centralizer body, barrel, outer desilting pipe, sleeve pipe, beam hanger, piston, pump seat etc. forms, oil pipe is arranged in sleeve pipe, the lower end of oil pipe is connected to outer dirt sand tube by righting hoop, righting hoop is internally provided with centralizer body, the lower end of righting hoop is connected by connector and retainer plate with the top of barrel, lower end between barrel and outer dirt sand tube is connected to mariages joint, the internal thread of mariages joint lower end is connected to pump seat, barrel is internally provided with piston and beam hanger, outer sand sediment pipe lower end is connected to the external screw thread of mariages joint, barrel is connected to the internal thread of mariages joint, piston cap is provided with beam hanger.The beneficial effects of the utility model are：Iron filings and sediment are guided to the annular space between barrel and outer dirt sand tube using piston cap, the normal work of oil well pump can be ensured, and can effectively collects iron filings and sediment, avoids holddown failure, extends the service life of oil well pump.
Description
Technical field
The utility model belongs to oil well production apparatus field, and in particular to a kind of anti-seizing oil pump.
Technical background
In process of production, holddown failure often occurs in oil well, and holddown failure refers to that piston is stuck not in barrel
Back and forth movement can be done, or piston cannot be introduced into barrel, and main cause can be divided into two kinds of situations：When iron filings holddown, in well workover
In operation process, operating worker turns beam hanger or oil pipe using pipe wrench or hydraulic tongs, since it is desired that high torque turns to screw thread
Dynamic, so being very easy to the iron filings that drop, iron filings are once fallen into oil pipe, can only enter barrel, and the joint of barrel is funnel type,
So iron filings will naturally fall in barrel and be stuck in the annular groove on piston；Second, sediment holddown, sediment can be divided into more
Kind, it is that impurity based on di-iron trioxide drops shaft bottom after casing wall oxidation first, next to that the long-term eccentric wear institute of beam hanger oil pipe
Caused metal dust, and the silt in shaft bottom etc..A variety of sediments together enter barrel with fluid, are constantly lifted until ground
Face.When especially stopping well, such as power failure, electrical fault, polished rod break, disconnected bar and intermittent producing well are former during well is stopped
This sediment constantly risen with fluid and iron filings lose the power of rising, and proportion is more than fluid again can sink in barrel naturally
Barrel is blocked, causes holddown.In addition, the poor designs of barrel external diameter and piston inner diameter only have 70 microns, such design both met
Higher pump efficiency, moreover it is possible to reduce the coefficient of friction of piston and barrel, but trickle particulate matter can also cause into the gap
Holddown.
It is inextricable in defined lifting tonnage just to need to carry out beam hanger back-off work when carrying out lifting unfreezing to holddown failure
Industry, beam hanger back-off operation are one of breakneck underground work, very big potential safety hazard be present.In addition, back-off operation can not profit
Draining is carried out with hammering oil discharger, serious environmental pollution and the wasting of resources can be caused.
Utility model content
The purpose of this utility model is for the defects of above-mentioned technology, there is provided one kind can guarantee that oil well normally produces,
And can effectively filters the iron filings and sediment fallen into barrel, ensure that pump occurs without holddown failure in production and when stopping well.
To achieve the above object, the technical scheme of the utility model solution is：A kind of anti-seizing oil pump, including oil pipe, help
Positive hoop, centralizer body, connector, barrel, outer desilting pipe, mariages joint, sleeve pipe, beam hanger, piston, pump seat connection composition, it is described
Oil pipe be arranged in sleeve pipe, the lower end of oil pipe is connected to outer desilting pipe by righting hoop, is set inside described righting hoop
Centralizer body is equipped with, the lower end of righting hoop is connected by connector and retainer plate with the top of barrel, barrel and outer desilting pipe
Between lower end be connected to mariages joint, the internal thread of mariages joint lower end is connected to pump seat.
Described barrel is internally provided with piston and beam hanger, and piston face is provided with annular groove, is additionally provided with piston
Fluid apertures.
Described centralizer body is up and down funnel type, and spacing is equal, direction is symmetrical.
Described outer sand sediment pipe lower end is connected to the external screw thread of mariages joint, and described barrel is connected to the interior of mariages joint
Screw thread.
Piston cap is provided with described beam hanger, piston cap is ring-shaped, and its internal diameter is more than beam hanger external diameter, and external diameter is less than oil
Bore, and beam hanger is to be flexibly connected through piston cap.
Described connector is connected by retainer plate with barrel top.
The beneficial effects of the utility model are：Using piston cap by iron filings and sediment guide to barrel and outer dirt sand tube it
Between annular space in, the normal work of oil well pump can be ensured, and can effectively collects iron filings and sediment, avoids causing card
Failure of pump, so as to extend the service life of oil well pump and oil well repair free period.
Further, the utility model is in transport and handling, outer sand sediment pipe can effectively protect the barrel of inside not by
Damage.
Brief description of the drawings
Fig. 1, overall structure sectional view of the present utility model.
Fig. 2, the top view of centralizer body.
Fig. 3, the top view of connector.
In figure：1. 6. barrel of oil pipe 2. righting hoop, 3. centralizer body, 4. connector, 5. retainer plate, 7. outer desilting pipe
8. the upper liquid hole of 13. pump seat 14- piston caps of mariages joint 9. sleeve pipe, 10. beam hanger, 11. piston, 12. annular groove 15..
Embodiment
The utility model embodiment is specifically described below in conjunction with the accompanying drawings.
As a kind of anti-seizing oil pump shown in Fig. 1-3, including the oil pipe 1 being arranged in sleeve pipe 9, and pass through righting section
The piston cap 14 installed on outer the desilting pipe 7 and beam hanger 10 of the connection of hoop 2, piston cap can use metal material or plastics and rubber system
Four centralizer bodies 3 are provided with into the righting hoop 2 of, the described bottom of oil pipe 1 connection, it is make piston 11 placed in the middle same that it, which is acted on,
When, it is also ensured that iron filings and sediment can pass through；The lower end of righting hoop 2 is provided with four connectors 4, to be connected
Circle 5, the effect of retainer plate 5 is fixed barrel 6, prevents it from being swung wantonly in the presence of pressure differential, but does not require to seal；Four
Connector 4 ensure that iron filings and sediment can pass through；The external screw thread of righting hoop 2 is connected with outer sand sediment pipe 7, outer desilting pipe 7
Lower end is connected to the external screw thread of mariages joint 8, and the lower end of barrel 6 is connected to the internal thread of mariages joint 8；Barrel 6 and outer desilting pipe 7
Between annular space be used for accommodate iron filings and sediment；The lower end of mariages joint 8 connects pump seat 13.
When 11 tripping in barrel 6 of piston, in the effect of centralizer body 3, piston 11 can smoothly enter barrel 6, without sideslip
Hit barrel mouth edge.
When oil well normally produces, piston 11 moves reciprocatingly in barrel 6, is constantly lifted to ground through upper liquid hole 15 by fluid
Face, when there are iron filings or sediment is fallen, continue to fall by the space between four centralizer bodies 3, when dropping down onto connector 4,
Continue to fall by the space between four connectors, until fall on the outer bottom of sand sediment pipe 7, although annular groove 12 it is also possible to
Into iron filings or sediment, but the possibility entered can greatly reduce.
Content of the present utility model is not only limited to cited by embodiment, and those of ordinary skill in the art are by reading this reality
Any equivalent transformation taken with new specification technical solutions of the utility model, is claim of the present utility model
Covered.
Claims (6)
1. a kind of anti-seizing oil pump, including oil pipe, righting hoop, centralizer body, connector, barrel, outer desilting pipe, mariages joint,
Sleeve pipe, beam hanger, piston, pump seat connection composition, it is characterised in that described oil pipe (1) is arranged in sleeve pipe (9), under oil pipe
End is connected to outer desilting pipe (7) by righting hoop (2), and described righting hoop (2) is internally provided with centralizer body (3), righting
The lower end of hoop (2) is connected by connector (4) and retainer plate (5) with the top of barrel (6), barrel (6) and outer desilting pipe
(7) lower end between is connected to mariages joint (8), and the internal thread of mariages joint (8) lower end is connected to pump seat (13).
2. a kind of anti-seizing oil pump according to claim 1, it is characterised in that described barrel (6) is internally provided with work
Plug (11) and beam hanger (10), piston face are provided with annular groove (12), upper liquid hole (15) are additionally provided with piston.
3. a kind of anti-seizing oil pump according to claim 1, it is characterised in that described centralizer body (3) is leakage up and down
Bucket type, and spacing is equal, direction is symmetrical.
A kind of 4. anti-seizing oil pump according to claim 1, it is characterised in that described outer desilting pipe (7) lower end connection
The external screw thread of mariages joint (8), described barrel (6) is connected to the internal thread of mariages joint (8).
5. a kind of anti-seizing oil pump according to claim 1, it is characterised in that be provided with piston on described beam hanger (10)
Cap (14), piston cap are ring-shaped, and its internal diameter is more than beam hanger external diameter, and external diameter is less than pipe aperture.
6. a kind of anti-seizing oil pump according to claim 1, it is characterised in that described connector (4) passes through retainer plate
(5) it is connected with barrel top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720854757.6U CN207073456U (en) | 2017-07-14 | 2017-07-14 | A kind of anti-seizing oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720854757.6U CN207073456U (en) | 2017-07-14 | 2017-07-14 | A kind of anti-seizing oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207073456U true CN207073456U (en) | 2018-03-06 |
Family
ID=61522555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720854757.6U Expired - Fee Related CN207073456U (en) | 2017-07-14 | 2017-07-14 | A kind of anti-seizing oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207073456U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165813A (en) * | 2017-07-14 | 2017-09-15 | 延长油田股份有限公司靖边采油厂 | A kind of anti-seizing oil pump |
-
2017
- 2017-07-14 CN CN201720854757.6U patent/CN207073456U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165813A (en) * | 2017-07-14 | 2017-09-15 | 延长油田股份有限公司靖边采油厂 | A kind of anti-seizing oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180306 Termination date: 20190714 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |