CN203161104U - Straightening abrasion-proof hollow sucker rod - Google Patents
Straightening abrasion-proof hollow sucker rod Download PDFInfo
- Publication number
- CN203161104U CN203161104U CN 201320178334 CN201320178334U CN203161104U CN 203161104 U CN203161104 U CN 203161104U CN 201320178334 CN201320178334 CN 201320178334 CN 201320178334 U CN201320178334 U CN 201320178334U CN 203161104 U CN203161104 U CN 203161104U
- Authority
- CN
- China
- Prior art keywords
- abrasion
- hollow
- hole
- hollow rod
- straightening
- 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
Links
- 238000005299 abrasion Methods 0.000 claims abstract description 16
- 239000003129 oil well Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
A straightening abrasion-proof hollow sucker rod comprises a male-thread hollow joint, a straightening abrasion-proof body, a hollow rod and a female-thread hollow joint, the male-thread hollow joint is provided with an upper through hole, a through hole is reserved inside the hollow rod, the female-thread hollow joint is provided with a lower through hole, and the radius of arcs of the surfaces on two sides of the straightening abrasion-proof body is equal to that of a matched oil pipe. After the straightening abrasion-proof body is sleeved on the hollow rod, the upper portion of the hollow rod is connected with the male-thread hollow joint, the lower portion of the hollow rod is connected with the female-thread hollow joint, and the upper through hole, the through hole and the lower through hole are communicated with one another. The straightening abrasion-proof body can straighten the hollow rod to enable the hollow rod not to bend, so that friction force between the hollow rod and the inner wall of the oil pipe can be reduced; and since the radius of the arcs of the surfaces on two sides of the straightening abrasion-proof body is equal to that of the matched oil pipe, the straightening abrasion-proof body and the inner wall of the oil pipe are in large-area contact, abrasion is dispersed, use time of the hollow rod can be prolonged greatly, and production cycle of an oil well can be prolonged.
Description
Technical field
The utility model relates to the oil production equipment of petroleum industry, particularly a kind of righting anti-abrasion hollow rod.
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, exist inevitable wearing and tearing between sucker rod and the oil pipe, particularly deep-well and inclined shaft, sucker rod is easy to bending in oil pipe, the problem of serious sucker rod partial wear oil pipe occurs, in order to solve the eccentric wear problem, worked out some technical methods and measure, but these technical measures all are to be applied on the solid sucker rod, also do not have suitable prevent mill technology and measure on the hollow rod, cause the oil well of hollow rod production wearing and tearing to occur producing between hollow rod and the oil pipe, after producing wearing and tearing oil pipe and hollow rod can not be used, cause the oil well operation, oil well repair free period is short, increase operating cost, increase rod tube consumption, the oil well off-time is many, has reduced crude output.
Summary of the invention
The purpose of this utility model is a kind of righting anti-abrasion hollow rod of design, alleviates the problem of exempting from hollow rod crooked occurring wear in oil pipe.
The purpose of this utility model is achieved in that and comprises the hollow joint of male thread, righting anti-abrasion body, hollow rod body, the hollow joint of box thread, the hollow joint of male thread has last through hole, there is through hole hollow rod body inside, the hollow joint of box thread has lower through-hole, the arc radius of righting anti-abrasion body both side surface equals the radius of supporting oil pipe, after righting anti-abrasion body is sleeved on the hollow rod body, hollow rod body top is connected with the hollow joint of male thread, the hollow rod body bottom is connected with the hollow joint of box thread, and last through hole, through hole, lower through-hole communicate.
The beneficial effects of the utility model are: righting anti-abrasion body can be set upright hollow rod body, make the hollow rod body can be crooked, can alleviate the frictional force with tube inner wall, the arc radius of righting anti-abrasion body both side surface equals the radius of supporting oil pipe, be that large tracts of land contacts with tube inner wall, wearing and tearing disperseed, can prolong hollow rod body service time greatly, can prolong the oil well production cycle.
Description of drawings
Accompanying drawing 1 is assembling drawing of the present utility model.
Accompanying drawing 2 is sectional views of part 3 in the accompanying drawing 1.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
As shown in the figure, embodiment of the present utility model comprises the hollow joint 1 of male thread, righting anti-abrasion body 3, hollow rod body 4, the hollow joint 7 of box thread, the hollow joint 1 of male thread has last through hole 2, there is through hole 5 hollow rod body 4 inside, the hollow joint 7 of box thread has lower through-hole 6, the arc radius of righting anti-abrasion body 3 both side surface equals the radius of supporting oil pipe, after righting anti-abrasion body 3 is sleeved on the hollow rod body 4, hollow rod body 4 tops are connected with the hollow joint 1 of male thread, hollow rod body 4 bottoms are connected with the hollow joint 7 of box thread, and last through hole 2, through hole 5, lower through-hole 6 communicate.
The hollow joint 1 of male thread, hollow rod body 4, the hollow joint 7 of box thread be connected to friction welding.
Claims (1)
1. righting anti-abrasion hollow rod, comprise the hollow joint of male thread (1), righting anti-abrasion body (3), hollow rod body (4), the hollow joint of box thread (7), the hollow joint of male thread (1) has last through hole (2), there is through hole (5) hollow rod body (4) inside, the hollow joint of box thread (7) has lower through-hole (6), it is characterized in that: the arc radius of righting anti-abrasion body (3) both side surface equals the radius of supporting oil pipe, after righting anti-abrasion body (3) is sleeved on the hollow rod body (4), hollow rod body (4) top is connected with the hollow joint of male thread (1), hollow rod body (4) bottom is connected with the hollow joint of box thread (7), last through hole (2), through hole (5), lower through-hole (6) communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320178334 CN203161104U (en) | 2013-04-01 | 2013-04-01 | Straightening abrasion-proof hollow sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320178334 CN203161104U (en) | 2013-04-01 | 2013-04-01 | Straightening abrasion-proof hollow sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161104U true CN203161104U (en) | 2013-08-28 |
Family
ID=49022297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320178334 Expired - Fee Related CN203161104U (en) | 2013-04-01 | 2013-04-01 | Straightening abrasion-proof hollow sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153715A (en) * | 2014-07-01 | 2014-11-19 | 江苏曙光华阳钻具有限公司 | Integral type heavy weight drill pipe without thickening |
-
2013
- 2013-04-01 CN CN 201320178334 patent/CN203161104U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153715A (en) * | 2014-07-01 | 2014-11-19 | 江苏曙光华阳钻具有限公司 | Integral type heavy weight drill pipe without thickening |
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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: 20130828 Termination date: 20140401 |