CN200943454Y - Taper thread anti-slip abrasive-resistant centralizer for screw pump well - Google Patents
Taper thread anti-slip abrasive-resistant centralizer for screw pump well Download PDFInfo
- Publication number
- CN200943454Y CN200943454Y CN 200620132070 CN200620132070U CN200943454Y CN 200943454 Y CN200943454 Y CN 200943454Y CN 200620132070 CN200620132070 CN 200620132070 CN 200620132070 U CN200620132070 U CN 200620132070U CN 200943454 Y CN200943454 Y CN 200943454Y
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- CN
- China
- Prior art keywords
- centralizer
- sucker rod
- taper thread
- sliding bearing
- wear
- 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 taper-thread anti-release wearable centralizer for the screw pump well is provided, mostly dealing with the problem that the existing centralizers have a short life and moves easily along the sucker rod, Characterized in that both ends of the sucker rod substitute (2) have inner threads (6), the centralizing block (1) is coupled to the middle of the sucker rod substitute (2), a sliding bearing housing (3) is arranged between the centralizing block (1) and the sucker rod substitute (2), the sliding bearing housing has on the external wall a groove (4), and the groove is embedded with a solid lubricant (5). The taper-thread anti-release wearable centralizer for the screw pump well adopts a hoop structure, so that the irregular movement of the centralizing block is limited and the centralizer is more resistant to lateral wearing. The utility model is wearable, corrosion-resistant and self-lubricating.
Description
Technical field:
The utility model relates to a kind of downhole tool in the oil recovery field, oil field, especially the wear-resisting centralizer of screw bolt well taper thread anti-drop rod.
Background technology:
In oil recovery field, oil field, centralizer is the downhole tool commonly used that prevents sucker rod partial wear, and frictional force is bigger between existing centralizer and the sucker rod, the centralizer abrasion resistance is relatively poor, application life is short, and centralizer is easily along sucker rod play up and down, anti-eccentric wear weak effect in addition.
The utility model content:
Short and in order to overcome existing centralizer application life easily along the sucker rod deficiency of play up and down, the utility model provides a kind of screw bolt well taper thread anti-drop rod wear-resisting centralizer, the wear-resisting centralizer of this screw bolt well taper thread anti-drop rod adopts the coupling type structure, limited the play of wiper block, anti-eccentric wear effect strengthens, and has the characteristics of wear-resistant, corrosion-resistant and self-lubricating.
The technical solution of the utility model is: the wear-resisting centralizer of this screw bolt well taper thread anti-drop rod comprises wiper block and sucker rod short circuit, the two ends of sucker rod short circuit all have internal thread, wiper block is enclosed within the middle part of sucker rod short circuit, between wiper block and sucker rod short circuit, sliding bearing sleeve is arranged, the outer wall of sliding bearing sleeve has groove, is inlaid with kollag in the groove.
Above-mentioned internal thread is a taper thread; The external surface of wiper block is provided with 4 critical guiding gutters, critical guiding gutter with axially become 50-60 ° of angle; The material of sliding bearing sleeve is a brass.
The utlity model has following beneficial effect: owing to take such scheme, the outer wall of sliding bearing sleeve has groove, be inlaid with kollag in the groove, friction factor between wiper block and the sucker rod short circuit is reduced, wiper block spin friction resistance reduces, and the reduction of the wearing and tearing between oil pipe, and the sucker rod short circuit has limited the play of wiper block, anti-eccentric wear effect strengthens, and has the characteristics of wear-resistant, corrosion-resistant and self-lubricating.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
1-wiper block among the figure, 2-sucker rod short circuit, 3-sliding bearing sleeve, 4-groove, 5-kollag, 6-internal thread, the critical guiding gutter of 7-.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, the wear-resisting centralizer of this screw bolt well taper thread anti-drop rod comprises wiper block 1 and sucker rod short circuit 2, and the two ends of sucker rod short circuit 2 all have internal thread 6, and internal thread 6 is a taper thread.Wiper block 1 is enclosed within the middle part of sucker rod short circuit 2, between wiper block 1 and sucker rod short circuit 2 sliding bearing sleeve 3 is arranged, and the material of sliding bearing sleeve 3 is a brass.The outer wall of sliding bearing sleeve 3 has groove 4, is inlaid with kollag 5 in the groove 4, and kollag 5 can be selected graphite for use.The external surface of wiper block 1 is provided with 4 critical guiding gutters 7, critical guiding gutter 7 with axially become 50-60 ° of angle, rotation when guaranteeing the liquid overcurrent, the moment keeps equidistant between sucker rod and the tube wall.
Because the outer wall of sliding bearing sleeve 3 has groove 4, be inlaid with kollag 5 in the groove 4, friction factor between wiper block 1 and the sucker rod short circuit 2 is reduced, wiper block 1 spin friction resistance reduces, and the wearing and tearing between oil pipe reduce, sucker rod short circuit 2 has limited the play of wiper block 1, and anti-eccentric wear effect strengthens, and has the characteristics of wear-resistant, corrosion-resistant and self-lubricating.
Claims (4)
1, the wear-resisting centralizer of a kind of screw bolt well taper thread anti-drop rod, comprise wiper block (1) and sucker rod short circuit (2), it is characterized in that: the two ends of sucker rod short circuit (2) all have internal thread (6), wiper block (1) is enclosed within the middle part of sucker rod short circuit (2), between wiper block (1) and sucker rod short circuit (2), sliding bearing sleeve (3) is arranged, the outer wall of sliding bearing sleeve (3) has groove (4), is inlaid with kollag (5) in the groove (4).
2, the wear-resisting centralizer of screw bolt well taper thread anti-drop rod according to claim 1, it is characterized in that: internal thread (6) is a taper thread.
3, the wear-resisting centralizer of screw bolt well taper thread anti-drop rod according to claim 1, it is characterized in that: the external surface of wiper block (1) is provided with 4 critical guiding gutters (7), critical guiding gutter (7) with axially become 50-60 ° of angle.
4, the wear-resisting centralizer of screw bolt well taper thread anti-drop rod according to claim 1, it is characterized in that: the material of sliding bearing sleeve (3) is a brass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620132070 CN200943454Y (en) | 2006-08-31 | 2006-08-31 | Taper thread anti-slip abrasive-resistant centralizer for screw pump well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620132070 CN200943454Y (en) | 2006-08-31 | 2006-08-31 | Taper thread anti-slip abrasive-resistant centralizer for screw pump well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200943454Y true CN200943454Y (en) | 2007-09-05 |
Family
ID=38718087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620132070 Expired - Fee Related CN200943454Y (en) | 2006-08-31 | 2006-08-31 | Taper thread anti-slip abrasive-resistant centralizer for screw pump well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200943454Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644445A (en) * | 2011-12-21 | 2012-08-22 | 贵州高峰石油机械股份有限公司 | Self-lubricating method and structure of roller type stabilizer and roller component of redresser |
| CN102031933B (en) * | 2009-09-24 | 2013-03-13 | 江苏宏泰石化机械有限公司 | Serial anti-fall centralizer |
| CN107630665A (en) * | 2017-06-22 | 2018-01-26 | 泰州市时代科研设备仪器有限公司 | A kind of abrasion-resistant alloy protective pipe connector of oil-pumping rod with guide function |
| CN107642339A (en) * | 2017-06-22 | 2018-01-30 | 泰州市时代科研设备仪器有限公司 | Multifunctional pumping rod abrasion-resistant alloy protective pipe connector |
| CN111456931A (en) * | 2020-04-15 | 2020-07-28 | 青岛理工大学 | Dynamic-fixed combined three-cylinder double-helix centering plug valve integrated cone valve pump |
-
2006
- 2006-08-31 CN CN 200620132070 patent/CN200943454Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031933B (en) * | 2009-09-24 | 2013-03-13 | 江苏宏泰石化机械有限公司 | Serial anti-fall centralizer |
| CN102644445A (en) * | 2011-12-21 | 2012-08-22 | 贵州高峰石油机械股份有限公司 | Self-lubricating method and structure of roller type stabilizer and roller component of redresser |
| CN102644445B (en) * | 2011-12-21 | 2015-06-17 | 贵州高峰石油机械股份有限公司 | Self-lubricating method and structure of roller type stabilizer and roller component of redresser |
| CN107630665A (en) * | 2017-06-22 | 2018-01-26 | 泰州市时代科研设备仪器有限公司 | A kind of abrasion-resistant alloy protective pipe connector of oil-pumping rod with guide function |
| CN107642339A (en) * | 2017-06-22 | 2018-01-30 | 泰州市时代科研设备仪器有限公司 | Multifunctional pumping rod abrasion-resistant alloy protective pipe connector |
| CN111456931A (en) * | 2020-04-15 | 2020-07-28 | 青岛理工大学 | Dynamic-fixed combined three-cylinder double-helix centering plug valve integrated cone valve pump |
| CN111456931B (en) * | 2020-04-15 | 2021-09-07 | 青岛理工大学 | Dynamic-fixed combined three-cylinder double-helix centering plug valve integrated cone valve pump |
| US11434702B2 (en) | 2020-04-15 | 2022-09-06 | Qingdao university of technology | Plug and valve integrated cone valve pump with combined type movable and fixed three cylinders and two spiral centralizers |
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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: 20070905 Termination date: 20100831 |