CN201159056Y - Oil tube abrasion-proof device - Google Patents
Oil tube abrasion-proof device Download PDFInfo
- Publication number
- CN201159056Y CN201159056Y CNU2008200161681U CN200820016168U CN201159056Y CN 201159056 Y CN201159056 Y CN 201159056Y CN U2008200161681 U CNU2008200161681 U CN U2008200161681U CN 200820016168 U CN200820016168 U CN 200820016168U CN 201159056 Y CN201159056 Y CN 201159056Y
- Authority
- CN
- China
- Prior art keywords
- wear
- oil pipe
- resistant body
- friction
- oil
- 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
- 230000002265 prevention Effects 0.000 claims description 8
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000003129 oil well Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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- Lubricants (AREA)
Abstract
An anti-friction device of an oil pipe is composed of an anti-friction rod, an oil pipe and an anti-friction body, wherein the anti-friction body is sleeved on the anti-friction rod, the anti-friction rod and the anti-friction body are arranged in the oil pipe, a plurality of strip bodies are arranged on the end portion of the anti-friction body, the outer sides of a plurality of the strip bodies of the end portion of the anti-friction body are contacted with the inner wall of the oil pipe, when a plurality of the strip bodies of the end portion of the anti-friction are in free state, the external diameter of a circle which is formed through connecting free ends is larger than the inner diameter of the oil pipe, each strip body is a strip spring and can change with the inner diameter of the oil pipe, the anti-friction body can generate the axial force and the radial force, and is temporarily fixed on the inner wall of the oil pipe, the anti-friction body can not be abraded on the rough inner surface of the oil pipe, and the service life is prolonged.
Description
One, technical field
The utility model relates to the oil production equipment of petroleum industry, particularly a kind of oil conduit wear prevention device.
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, 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, behind the generation eccentric wear oil pipe and sucker rod can not be used, cause the oil well operation, oil well repair free period is short, increases operating cost, increases rod tube consumption, the oil well off-time is many, has reduced crude output.In order to address this problem, there is the aboveground device that is the wear-resistant pair of sucker rod that used of eccentric wear in the oil field, this device is a suit wearing bush on smooth abrasionproof bar, be lowered on the pump in the oil pipe with sucker rod, require wearing bush to be fixed on the tube inner wall during oil pumping, smooth abrasionproof bar moves relative to wearing bush, abrasionproof club shaft smooth surface surface, frictional force is little when mobile, can not produce wearing and tearing.But the wearing bush of this device and the support force of tube inner wall are little, always move with smooth abrasionproof bar, and wearing bush self is easy to wearing and tearing.Therefore, the problem of sucker rod partial wear oil pipe still exists.
Three, summary of the invention
The purpose of this utility model is a kind of oil conduit wear prevention device of design, avoids sucker rod wearing and tearing oil pipe, the application life of improving sucker rod, oil pipe.
The purpose of this utility model has been achieved in that wear bar, oil pipe, also comprise wear-resistant body, wear-resistant body is sleeved on the wear bar, and wear bar, wear-resistant body are in oil pipe, wear-resistant end of body is a plurality of bodies, and a plurality of external sides of wear-resistant end of body contact with tube inner wall.
When a plurality of bodies of wear-resistant end of body were in free state, the external diameter of the circle that free end is linked to be was greater than the internal diameter of oil pipe.
Wear-resistant body is made up of friction piece 2-2 and wear sleeve 2-1, and friction piece 2-2 and wear sleeve 2-1 are connected into one.
The beneficial effects of the utility model are: when a plurality of bodies of wear-resistant end of body are in free state, the external diameter of the circle that free end is linked to be is greater than the internal diameter of oil pipe, each bar body is exactly a bar-spring, can change with pipe aperture, therefore, can produce axial force and radial load between wear-resistant body and the oil pipe, temporarily be fixed on the tube inner wall, wear-resistant body can not rub on coarse pipe inner surface and wear and tear, and improves and uses.
Four, description of drawings
Accompanying drawing 1 is the assembling drawing of first kind of embodiment of the utility model oil conduit wear prevention device.
Accompanying drawing 2 is combining structures of wear-resistant body 2 in the utility model accompanying drawing 1.
Accompanying drawing 3 is assembling drawings of second kind of embodiment of the utility model oil conduit wear prevention device.
Accompanying drawing 4 is combining structures of wear-resistant body 2 in the utility model accompanying drawing 3.
Five, the specific embodiment
1,2 couples of first kind of embodiment describe in detail below in conjunction with accompanying drawing.
As shown in Figure 1, wear bar 1, oil pipe 3, wear-resistant body 2 are arranged, wear-resistant body 2 is sleeved on the wear bar 1, wear bar 1, wear-resistant body 2 are in oil pipe 3, wear-resistant body 2 bottom endoporus and wear bar 1 are formed pair of friction components, wear-resistant body 2 bottoms are a plurality of bodies, and a plurality of external sides of wear-resistant body 2 bottoms contact with oil pipe 3 inwalls, and oil stream is from the Clearance Flow between the bar body.When a plurality of bodies of wear-resistant body 2 bottoms were in free state, the external diameter of the circle that free end is linked to be was greater than the internal diameter of oil pipe 3.A plurality of the external sides and the oil pipe 3 inwall contact portions of wear-resistant body 2 bottoms are provided with anti-slop serrations.During oil pumping, wear bar 1 is with the upper and lower motion of sucker rod, by the frictional force of wear-resistant body 2 and pipe inner surface greater than the frictional force of wear-resistant body 2, so wear-resistant body 2 does not move during oil pumping with wear bar 1.In the wear-resistant body 2 wear-resistant sleeve can be set.Also can set up an organization on the wear-resistant body 2, make to be rolling friction between itself and the wear bar.But a plurality of external sides of wear-resistant body 2 bottoms and oil pipe 3 inwall contact site spraying abrasion-proof layers.For the ease of processing, wear-resistant body 2 can adopt fabricated structure, as shown in Figure 2, is made up of friction piece 2-2 and wear sleeve 2-1, and friction piece 2-2 and wear sleeve 2-1 are connected into one.Connecting mode can adopt several different methods.The effect different with wear sleeve 2-1 according to friction piece 2-2, friction piece 2-2 can adopt different materials and heat treatment method with wear sleeve 2-1.Wear-resistant body 2 invertible types of this embodiment use.
3,4 couples of second kind of embodiment describe in detail below in conjunction with accompanying drawing.
Shown in Fig. 3,4, wear bar 1, oil pipe 3, wear-resistant body 2 are arranged, wear-resistant body 2 is sleeved on the wear bar 1, wear bar 1, wear-resistant body 2 are in oil pipe 3, wear-resistant body 2 middle part endoporus and wear bar 1 are formed pair of friction components, wear-resistant body 2 both ends are a plurality of bodies, and a plurality of the external sides at wear-resistant body 2 both ends contact with oil pipe 3 inwalls, and oil stream is from the Clearance Flow between the bar body.When a plurality of the bodies at wear-resistant body 2 both ends were in free state, the external diameter of the circle that free end is linked to be was greater than the internal diameter of oil pipe 3.A plurality of the external sides and the oil pipe 3 inwall contact portions at wear-resistant body 2 one ends or both ends are provided with anti-slop serrations.During oil pumping, wear bar 1 is with the upper and lower motion of sucker rod, by the frictional force of wear-resistant body 2 and pipe inner surface greater than the frictional force of wear-resistant body 2, so wear-resistant body 2 does not move during oil pumping with wear bar 1.In the wear-resistant body 2 wear-resistant sleeve can be set.Also can set up an organization on the wear-resistant body 2, make to be rolling friction between itself and the wear bar.But a plurality of external sides at wear-resistant body 2 both ends and oil pipe 3 inwall contact site spraying abrasion-proof layers.For the ease of processing, wear-resistant body 2 can adopt fabricated structure, as shown in Figure 4, is made up of friction piece 2-2 and wear sleeve 2-1, and wear sleeve 2-1 two ends symmetry is installed rub body 2-2, and friction piece 2-2 and wear sleeve 2-1 are connected into one.Connecting mode can adopt several different methods.The effect different with wear sleeve 2-1 according to friction piece 2-2, friction piece 2-2 can adopt different materials and heat treatment method with wear sleeve 2-1.
Claims (3)
1, a kind of oil conduit wear prevention device, wear bar (1), oil pipe (3) are arranged, it is characterized in that: also comprise wear-resistant body (2), wear-resistant body (2) is sleeved on the wear bar (1), wear bar (1), wear-resistant body (2) are in oil pipe (3), wear-resistant body (2) end is a plurality of bodies, and a plurality of external sides of wear-resistant body (2) end contact with oil pipe (3) inwall.
2, oil conduit wear prevention device according to claim 1 is characterized in that: when a plurality of bodies of wear-resistant body (2) end were in free state, the external diameter of the circle that free end is linked to be was greater than the internal diameter of oil pipe (3).
3, oil conduit wear prevention device according to claim 1 is characterized in that: wear-resistant body is made up of friction piece (2-2) and wear sleeve (2-1), and friction piece (2-2) and wear sleeve (2-1) are connected into one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200161681U CN201159056Y (en) | 2008-01-11 | 2008-01-11 | Oil tube abrasion-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200161681U CN201159056Y (en) | 2008-01-11 | 2008-01-11 | Oil tube abrasion-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159056Y true CN201159056Y (en) | 2008-12-03 |
Family
ID=40109642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200161681U Expired - Fee Related CN201159056Y (en) | 2008-01-11 | 2008-01-11 | Oil tube abrasion-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159056Y (en) |
-
2008
- 2008-01-11 CN CNU2008200161681U patent/CN201159056Y/en not_active Expired - Fee Related
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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: 20081203 Termination date: 20100211 |