CN202810691U - Antifriction resistance reducing short connection for well drilling - Google Patents
Antifriction resistance reducing short connection for well drilling Download PDFInfo
- Publication number
- CN202810691U CN202810691U CN 201220389702 CN201220389702U CN202810691U CN 202810691 U CN202810691 U CN 202810691U CN 201220389702 CN201220389702 CN 201220389702 CN 201220389702 U CN201220389702 U CN 201220389702U CN 202810691 U CN202810691 U CN 202810691U
- Authority
- CN
- China
- Prior art keywords
- tool body
- sleeve
- drilling tool
- short connection
- resistance reducing
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 26
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a petroleum drilling tool, in particular to an antifriction resistance reducing short connection for well drilling. A tool body of the antifriction resistance reducing short connection comprises an upper connector and a lower connector, and a friction sleeve is sleeved on the tool body. A centralizer body is sleeved outside the friction sleeve, and a cushion cover is sleeved on the tool body located on the lower end of the centralizer body and fixed through a locking sleeve. The antifriction resistance reducing short connection achieves reduction of friction torque between a drilling tool and the inner wall of a sleeve pipe, prevents abrasion between the drilling tool body and the sleeve pipe, overcomes the defects that an existing drilling tool has large friction resistance with the inner wall of the sleeve pipe, and the drilling tool body and the sleeve pipe are easy to wear.
Description
Technical field:
The utility model relates to a kind of oil drilling tool, particularly a kind of drilling well antifriction short circuit.
Background technology:
In the drilling process of directional well, high angle hole and horizontal well, because the Action of Gravity Field of drilling tool, so that drilling tool is close on the casing wall, drilling tool and internal surface of sleeve pipe contact area are large, produce larger frictional resistance, can produce very large moment of torsion again during rotary drilling, the load of rig is obviously increased, all can cause larger wearing and tearing to the inwall of drilling tool body and sleeve pipe simultaneously, cause wellbore construction normally to carry out when serious, cause huge economic loss.
The utility model content:
The technical problems to be solved in the utility model provides a kind of drilling well antifriction short circuit, and this instrument has realized reducing the mill resistance moment of torsion between drilling tool and the internal surface of sleeve pipe, prevents drilling tool body and casing wear.Overcome existing drilling tool and internal surface of sleeve pipe frictional resistance is large, drilling tool body and sleeve pipe deficiency easy to wear.
Technical solution adopted in the utility model is: a kind of drilling well antifriction short circuit comprises tool body; Tool body is designed with respectively up and down top connection and lower contact, is set with friction sleeve on the tool body, and friction sleeve is set with centralizer body outward, and cushion cover is sleeved on the tool body of centralizer body lower end and by lock sleeve and fixes.
The beneficial effects of the utility model are: the utility model is owing to having adopted the mode that is set with friction sleeve and centralizer body outside tool body, thereby has a function of the mill resistance moment of torsion that reduces between drilling tool and the internal surface of sleeve pipe, prevent drilling tool body and casing wear, safe and reliable.
Description of drawings:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Accompanying drawing is structural representation of the present utility model.
The specific embodiment:
As shown in drawings, a kind of drilling well antifriction short circuit comprises tool body 1; Tool body 1 is designed with respectively up and down top connection and lower contact, is set with friction sleeve 3 on the tool body 1, and the outer centralizer bodies 2 that are set with of friction sleeve 3, cushion cover 4 are sleeved on the tool body 1 of centralizer body 2 lower ends and are fixing by lock sleeve 5.2 pairs of whole drill strings of centralizer body are played a supporting role, and reduce the frictional force between drill string and the internal surface of sleeve pipe; Friction sleeve 3 is processed by the lightweight high abrasion resisting material, and the material friction coefficient is low, relatively rotates between the friction sleeve during drill string rotating, has played the effect that reduces moment of torsion because of the reduction of friction factor.
Be understandable that, above about specific descriptions of the present utility model, only for the utility model being described and being not to be subject to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection domain of the present utility model.
Claims (1)
1. a drilling well antifriction short circuit comprises tool body (1); It is characterized in that: tool body (1) is designed with respectively up and down top connection and lower contact, be set with friction sleeve (3) on the tool body (1), the outer centralizer body (2) that is set with of friction sleeve (3), cushion cover (4) is sleeved on the tool body (1) of centralizer body (2) lower end and upward and by lock sleeve (5) fixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389702 CN202810691U (en) | 2012-08-07 | 2012-08-07 | Antifriction resistance reducing short connection for well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389702 CN202810691U (en) | 2012-08-07 | 2012-08-07 | Antifriction resistance reducing short connection for well drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202810691U true CN202810691U (en) | 2013-03-20 |
Family
ID=47869589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220389702 Expired - Fee Related CN202810691U (en) | 2012-08-07 | 2012-08-07 | Antifriction resistance reducing short connection for well drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202810691U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806848A (en) * | 2014-02-28 | 2014-05-21 | 成都大漠石油机械有限公司 | Drill column abrasion resisting device |
| CN103867191A (en) * | 2014-03-10 | 2014-06-18 | 中国地质大学（武汉） | Anti-wear insulation pipe nipple for electromagnetic wave measurement while drilling |
| CN103912223A (en) * | 2014-04-12 | 2014-07-09 | 山东陆海石油装备有限公司 | Swivel bearing type drag reduction tool |
| CN104481401A (en) * | 2015-01-05 | 2015-04-01 | 西南石油大学 | Novel petroleum and natural gas underground anti-friction and resistance-reduction device |
| CN105781444A (en) * | 2016-04-29 | 2016-07-20 | 中国石油大学(北京) | Torque reducing and resistance reducing stabilizer |
-
2012
- 2012-08-07 CN CN 201220389702 patent/CN202810691U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806848A (en) * | 2014-02-28 | 2014-05-21 | 成都大漠石油机械有限公司 | Drill column abrasion resisting device |
| CN103867191A (en) * | 2014-03-10 | 2014-06-18 | 中国地质大学（武汉） | Anti-wear insulation pipe nipple for electromagnetic wave measurement while drilling |
| CN103912223A (en) * | 2014-04-12 | 2014-07-09 | 山东陆海石油装备有限公司 | Swivel bearing type drag reduction tool |
| CN104481401A (en) * | 2015-01-05 | 2015-04-01 | 西南石油大学 | Novel petroleum and natural gas underground anti-friction and resistance-reduction device |
| CN104481401B (en) * | 2015-01-05 | 2016-08-17 | 西南石油大学 | A kind of nonpetroleum and antifriction device under the natural gas well |
| CN105781444A (en) * | 2016-04-29 | 2016-07-20 | 中国石油大学(北京) | Torque reducing and resistance reducing stabilizer |
| CN105781444B (en) * | 2016-04-29 | 2018-06-29 | 中国石油大学(北京) | One kind subtracts torsion drop resistance stabilizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20140807 |
|
| EXPY | Termination of patent right or utility model |