CN203383730U - Directive rotary steering well drilling steering tool - Google Patents
Directive rotary steering well drilling steering tool Download PDFInfo
- Publication number
- CN203383730U CN203383730U CN201320243322.XU CN201320243322U CN203383730U CN 203383730 U CN203383730 U CN 203383730U CN 201320243322 U CN201320243322 U CN 201320243322U CN 203383730 U CN203383730 U CN 203383730U
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- CN
- China
- Prior art keywords
- live spindle
- crossover sub
- spindle
- steering
- ball bearing
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a directive rotary steering well drilling steering tool, which mainly comprises a transition joint, a rotating spindle and a non-rotating outer sleeve, wherein the transition joint is connected with the rotating spindle through a square hole in the transition joint and a square face of the rotating spindle, the outer side of the transition joint is provided with a thrust ball bearing and a motive seal, bit thrust can be transmitted to the non-rotating outer sleeve through the thrust ball bearing, the rotating spindle is a stepped spindle, external threads are arranged on the upper end of the rotating spindle, a nut is arranged, and the square hole in the transition joint and the square face of the rotating spindle can move relative to each other in the axial direction.
Description
Technical field
The utility model relates to a kind of guiding type rotary steering drilling tool for the oil and gas exploitation aspect, belongs to the oil drilling technical field of underground.
Background technology
The directional type rotary steerable drilling system is to make the live spindle biasing by a set of eccentric stiffener between rotary sleeve not and live spindle, thus for drill bit provide one with the inconsistent inclination angle of borehole axis, produce guide effect.In existing directional type rotary steerable drilling system, live spindle will transmit the pressure of the drill and moment of torsion on the one hand under rotation status, also will under the effect of eccentric stiffener, the transverse bending distortion occur, BENDING PROCESS repeatedly causes live spindle to be easy to just produce fatigue failure simultaneously.Chinese patent CN 101586440A " a kind of guiding type rotary steering drilling tool " is optimized this problem, solved the problem that can not freely extend in the live spindle BENDING PROCESS, the pressure of the drill also can be delivered on drill bit by bearing simultaneously, but live spindle but can not be realized the transmission of moment of torsion.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of existing rotary steering drilling tool technology, and existing structure is improved, and a kind of novel directional type rotary steerable drilling steering tool is provided.
The technical solution of the utility model is: a kind of directional type rotary steerable drilling of the utility model steering tool, and mainly by crossover sub, live spindle, rotary sleeve does not form.
The pin thread of described crossover sub by its upper end is connected with hollow drill collar, and described crossover sub is connected by square hole in crossover sub and the realization of live spindle square face and live spindle; The outside of described crossover sub is equipped with thrust ball bearing and movable sealing, can be load transfer to rotary sleeve not by thrust ball bearing.
Described live spindle is a Step Shaft, and there is external screw thread the upper end of described live spindle, and mounting nuts; Axially relative motion of square hole in live spindle square face on described live spindle and crossover sub; Installation one eccentric stiffener is run through in described live spindle middle part; Described live spindle lower end, through spherical bearing and movable sealing, is connected with a swivel joint.
The upper end of described not rotary sleeve is equipped with thrust ball bearing and movable sealing, and lower end is equipped with spherical bearing and movable sealing, on the inwall of described not rotary sleeve, fixedly mounts eccentric stiffener.
The beneficial effects of the utility model and advantage are as follows:
1. the utility model can be realized the transmission that separates of the pressure of the drill and moment of torsion, on the one hand can by crossover sub and thrust ball bearing load transfer to rotary sleeve not, can the moment of torsion of drill collar be delivered on live spindle by the connection of crossover sub and live spindle on the other hand; 2. when live spindle is crooked, the live spindle square face can be realized axial freely extending along square hole axially-movable in crossover sub, improves greatly the life-span of live spindle.
The accompanying drawing explanation
Fig. 1 is directional type rotary steerable drilling steering tool structural representation.
Fig. 2 is the A-A sectional view.
In figure: 1. hollow drill collar, 2. nut, 3. external screw thread, 4. crossover sub, 5. movable sealing, 6. not rotary sleeve, 7. thrust ball bearing, 8. live spindle, 9. eccentric stiffener, 10. spherical bearing, 11. movable sealing, 12. swivel joints, 13. live spindle square faces, square hole in 14. crossover subs.
The specific embodiment
Further illustrate the utility model below in conjunction with accompanying drawing.
In Fig. 1, a kind of directional type rotary steerable drilling steering tool, mainly by crossover sub 4, live spindle 8, rotary sleeve 6 does not form.
As depicted in figs. 1 and 2, crossover sub 4 is connected with hollow drill collar 1, realize being connected of crossover sub 4 and live spindle 8 by square hole in crossover sub 14 and live spindle square face 13, simultaneously when live spindle 8 is biased mechanism's 9 press-bending, live spindle square face 13 can be along 14 axially-movables of square hole in crossover sub, the outside of crossover sub 4 is equipped with thrust ball bearing 7 and movable sealing 5, can be load transfer to rotary sleeve 6 not by thrust ball bearing 7.
As shown in Figure 1, live spindle 8 is a Step Shaft, and there is external screw thread 3 upper end of live spindle 8, and mounting nuts 2, installation one eccentric stiffener 9 is run through in live spindle 8 middle parts, and live spindle 8 lower ends, through spherical bearing 10 and movable sealing 11, are connected with a swivel joint 12; The upper end of rotary sleeve 6 is not equipped with thrust ball bearing 7 and movable sealing 5, and lower end is equipped with spherical bearing 10 and movable sealing 11, not fixed installation eccentric stiffener 9 on the inwall of rotary sleeve 6.
Claims (2)
1. a directional type rotary steerable drilling steering tool, mainly by crossover sub (4), live spindle (8), rotary sleeve (6) forms, it is characterized in that described crossover sub (4) being connected by square hole (14) in crossover sub and live spindle square face (13) realization and live spindle (8), the outside of crossover sub (4) is equipped with thrust ball bearing (7) and movable sealing (5), can be load transfer to rotary sleeve (6) not by thrust ball bearing (7).
2. according to the described a kind of directional type rotary steerable drilling steering tool of right 1, it is characterized in that described live spindle (8) is a Step Shaft, there is external screw thread (3) upper end of live spindle (8), and nut (2) is installed, axially relative motion of square hole (14) in the live spindle square face (13) on live spindle (8) and crossover sub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320243322.XU CN203383730U (en) | 2013-05-08 | 2013-05-08 | Directive rotary steering well drilling steering tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320243322.XU CN203383730U (en) | 2013-05-08 | 2013-05-08 | Directive rotary steering well drilling steering tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203383730U true CN203383730U (en) | 2014-01-08 |
Family
ID=49872239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320243322.XU Expired - Fee Related CN203383730U (en) | 2013-05-08 | 2013-05-08 | Directive rotary steering well drilling steering tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203383730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507897A (en) * | 2014-10-09 | 2016-04-20 | 山特维克矿山工程机械有限公司 | Rotation unit, rock drilling unit and method for rock drilling |
| CN113622819A (en) * | 2021-07-28 | 2021-11-09 | 长江大学 | Drilling pressure transmission sealing device used inside drilling tool |
-
2013
- 2013-05-08 CN CN201320243322.XU patent/CN203383730U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507897A (en) * | 2014-10-09 | 2016-04-20 | 山特维克矿山工程机械有限公司 | Rotation unit, rock drilling unit and method for rock drilling |
| CN105507897B (en) * | 2014-10-09 | 2017-12-19 | 山特维克矿山工程机械有限公司 | Rotary unit, rock drilling unit and the method for rock drilling |
| US9951559B2 (en) | 2014-10-09 | 2018-04-24 | Sandvik Mining And Construction Oy | Rotation unit, rock drilling unit and method for rock drilling |
| CN113622819A (en) * | 2021-07-28 | 2021-11-09 | 长江大学 | Drilling pressure transmission sealing device used inside drilling tool |
| CN113622819B (en) * | 2021-07-28 | 2023-11-03 | 长江大学 | Drilling pressure transmission sealing device for drilling tool |
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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: 20140108 Termination date: 20150508 |
|
| EXPY | Termination of patent right or utility model |