CN201377292Y - Bidirectional protection hot-cast pumping rod - Google Patents
Bidirectional protection hot-cast pumping rod Download PDFInfo
- Publication number
- CN201377292Y CN201377292Y CN200920018198U CN200920018198U CN201377292Y CN 201377292 Y CN201377292 Y CN 201377292Y CN 200920018198 U CN200920018198 U CN 200920018198U CN 200920018198 U CN200920018198 U CN 200920018198U CN 201377292 Y CN201377292 Y CN 201377292Y
- Authority
- CN
- China
- Prior art keywords
- cast
- pumping rod
- antifriction
- oil pipe
- block
- 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 relates to a bidirectional protection hot-cast pumping rod. An antifriction block is made of metal. A righting sleeve is made of non-metal. The righting sleeve, the antifriction block and a pumping rod are cast into a whole body. The antifriction block is cast into the righting sleeve. The righting sleeve is cast outside the pumping rod. A plurality of antifriction block are distributed peripherally. The outside of the antifriction block is extended out of the righting sleeve. The upper part, the middle part and the lower part of the inside of the antifriction block are provided with bosses. The antifriction block is of a spiral shape. A spiral groove is formed between the two antifriction blocks. The material of the antifriction block is nickel-based alloy. When pumping movement is carried out, the antifriction block and the inner wall of the oil pipe are contacted to ensure the pumping rod string position on the middle part of the oil pipe, thus the pumping rod can be righted, thereby alleviating the bending degree of the pumping rod in the oil pipe, furthermore reducing the wearing of the oil pipe and the pumping rod, and having bidirectional protection effects. The antifriction block is made of antifriction metal, has long service life, the hardness degree of which is less than the hardness degree of the oil pipe, thereby the oil pipe can not be damaged, and the utility model has significant economical effect.
Description
One, technical field
The utility model is the underground equipment that oil field pumping well is used, particularly a kind of bidirectional protection hot-cast pumping rod.
Two, background technology
In sucker-rod pumping system, no matter be straight well or inclined shaft, R a T all is relative motion in contact, therefore, exists inevitable wear problem between sucker rod and the oil pipe.For avoiding oil pipe, sucker rod wear problems occurring, the normal oil pumping rod centering device that adopts on the oil recovery technique.Existing oil pumping rod centering device kind is more; generally all be to be fixed on the sucker rod; be synchronized with the movement with sucker rod; nonmetals and tube inner wall during oil pumping on the centralizer are done relative motion, because nonmetals are soft, oil pipe can not wear and tear; played temporary transient protective effect; but the non-metallic material grinding abrasion is very fast, and the time of protection oil pipe, sucker rod is short, and heavy wear still appears in oil pipe, oil pick-up tube.
Three, summary of the invention
The purpose of this utility model is a kind of bidirectional protection hot-cast pumping rod of design, and oil pipe, sucker rod are protected, and avoids sucker rod sucker rod, oil pipe wear problems to occur in the bending of oil pipe internal cause, inclination.
The purpose of this utility model has been achieved in that sucker rod, also have supporting positive cover, anti-abrading block, anti-abrading block is a metal, supporting positive cover is nonmetal, and supporting positive cover, anti-abrading block and sucker rod melt cast solid, and the abrasionproof block casting is gone in the supporting positive cover, the supporting positive cover casting is outside sucker rod, anti-abrading block has several, is circle distribution, and anti-abrading block lateral process goes out supporting positive cover.
There is boss at three positions, the inboard upper, middle and lower of anti-abrading block.
Anti-abrading block is a helical form, forms helicla flute between two anti-abrading blocks.
The material of anti-abrading block is a nickel-base alloy.
The beneficial effects of the utility model are: during the oil pumping motion, anti-abrading block contacts with tube inner wall, make rod string be in the oil pipe centre position, sucker rod has been played centralizing function, can alleviate the degree of crook of sucker rod in oil pipe, thereby alleviate oil pipe, sucker rod wearing and tearing, play two-way guarantor's expansion effect.Anti-abrading block is an antifriction metal (AFM), self life-span height, and its hardness is lower than oil pipe hardness, can not damage oil pipe.Therefore, the utility model can reach purpose of design, has remarkable economic efficiency.
Four, description of drawings
Fig. 1 is the utility model embodiment assembling drawing.
Fig. 2 is the structure chart of part 2 among Fig. 1.
Fig. 3 is the sectional view after cutting open from A-A among Fig. 1.
Five, the specific embodiment
Embodiment describes below in conjunction with accompanying drawing.
As shown in the figure: the 1st, supporting positive cover, the 2nd, anti-abrading block, the 3rd, sucker rod.Be that the utility model embodiment is made up of supporting positive cover 1, anti-abrading block 2, sucker rod 3.Anti-abrading block 2 is a metal, supporting positive cover 1 is nonmetal, supporting positive cover 1, anti-abrading block 2 melt cast solid with sucker rod 3, anti-abrading block 2 is cast into 1 li of supporting positive cover, and supporting positive cover 1 casting is outside sucker rod 3, and anti-abrading block 2 has several, be circle distribution, the outstanding supporting positive cover 1 in anti-abrading block 2 outsides makes between two anti-abrading blocks 2 and formed oil groove, and this concentrated flow of oil stream process is to well head.There is boss 4 at anti-three positions, abrading block 2 inboard upper, middle and lower so that firmly with supporting positive cover 1 cast solid.Anti-abrading block 2 is a helical form, forms helicla flute between two anti-abrading blocks 2, promptly crosses oil groove.The material of anti-abrading block 2 is a nickel-base alloy, and hardness is lower than oil pipe hardness.
Claims (4)
1, a kind of bidirectional protection hot-cast pumping rod; sucker rod (3) is arranged; it is characterized in that: also have supporting positive cover (1), anti-abrading block (2), anti-abrading block (2) is a metal, and supporting positive cover (1) is nonmetal; supporting positive cover (1), anti-abrading block (2) melt cast solid with sucker rod (3); anti-abrading block (2) is cast into supporting positive cover (1) lining, and supporting positive cover (1) is cast outside sucker rod (3), and anti-abrading block (2) has several; be circle distribution, the outstanding supporting positive cover (1) in anti-abrading block (2) outside.
2, bidirectional protection hot-cast pumping rod according to claim 1 is characterized in that: there is boss (4) at anti-three positions, the inboard upper, middle and lower of abrading block (2).
3, bidirectional protection hot-cast pumping rod according to claim 1 is characterized in that: anti-abrading block (2) is a helical form, forms helicla flute between two anti-abrading blocks (2).
4, bidirectional protection hot-cast pumping rod according to claim 1 is characterized in that: the material of anti-abrading block (2) is a nickel-base alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920018198U CN201377292Y (en) | 2009-01-17 | 2009-01-17 | Bidirectional protection hot-cast pumping rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920018198U CN201377292Y (en) | 2009-01-17 | 2009-01-17 | Bidirectional protection hot-cast pumping rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201377292Y true CN201377292Y (en) | 2010-01-06 |
Family
ID=41517396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920018198U Expired - Fee Related CN201377292Y (en) | 2009-01-17 | 2009-01-17 | Bidirectional protection hot-cast pumping rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201377292Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541676A (en) * | 2019-10-25 | 2019-12-06 | 左入林 | Bidirectional sucker rod |
-
2009
- 2009-01-17 CN CN200920018198U patent/CN201377292Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541676A (en) * | 2019-10-25 | 2019-12-06 | 左入林 | Bidirectional sucker rod |
| CN110541676B (en) * | 2019-10-25 | 2020-07-28 | 大庆丹枫石油技术开发有限公司 | Bidirectional sucker rod |
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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: 20100106 Termination date: 20110117 |