CN201934022U - Rotary guide mechanism used for directional drilling - Google Patents
Rotary guide mechanism used for directional drilling Download PDFInfo
- Publication number
- CN201934022U CN201934022U CN2010206871732U CN201020687173U CN201934022U CN 201934022 U CN201934022 U CN 201934022U CN 2010206871732 U CN2010206871732 U CN 2010206871732U CN 201020687173 U CN201020687173 U CN 201020687173U CN 201934022 U CN201934022 U CN 201934022U
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- drilling
- main shaft
- transmission main
- ball bearing
- guide mechanism
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Abstract
The utility model relates to a rotary guide mechanism used for directional drilling, belonging to the technical field of the design of a petroleum drilling tool. The rotary guide mechanism used for directional drilling is characterized in that in a shell (1), a bearing (2) capable of sliding along the axial direction is fixedly connected onto a transmission main shaft (3); the lower part of the transmission main shaft (3) is provided with an eccentric motion mechanism (4); the lower end of the transmission main shaft (3) is connected with a universal joint (5) by taper thread; the lower end of the universal joint (5) is articulated with a continuous axle (6); the lower end of the continuous axle (6) is connected with a ball bearing (7) by taper thread; and the lower part of the ball bearing (7) is connected with an output shaft (8) by taper thread. Compared with the prior art, the rotary guide mechanism used for directional drilling has the characteristics of being simple in structure, reasonable in stress, reliable in work, high in build-up rate and long in service life; and the drilling direction and the drilling angle of a drill bit can be freely adjusted without picking up the drill bit, so that the drilling operation procedures are greatly simplified, and the economic benefit of drilling operation can be improved.
Description
Technical field:
The utility model relates to a kind of rotary steering mechanism that is used for directed drilling, belongs to the oil drilling tool design field.
Background technology:
In the research and application of rotary steering mechanism, the sensing formula rotary steering mechanism that is used for directed drilling is not limited by the mellowness on stratum, can form a stable adjustable bent angle, and the guiding hole deviation changes, and is subjected to numerous spudders author's favor.But this rotary steering mechanism deflecting ability is strong relevant with weak structure with drilling tool itself.China has carried out the theory and the experimental study of relevant sensing formula rotary steering mechanism successively, and has obtained certain progress since " 15 ".Pertinent literature has proposed the semi girder free end and has added the fixedly statically-indeterminate structure mechanics scheme of hinged-support.But there is the problem of two aspects in this structural mechanics scheme: the one, and build angle rate is lower, and adjustable bent angle is less; The 2nd, the main shaft anti-fatigue ability is poor, the whole stressed complexity of main drive shaft, and its alternating stresses causes that fatigue phenomenon takes place, and has influenced the application life of guiding mechanism, therefore, far can not satisfy the needs of present oil exploration drilling engineering.
Summary of the invention:
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of rotary steering mechanism that is used for directed drilling, have simple in structure, stressed rationally, reliable operation, build angle rate height, the characteristics of long service life.
The utility model is to realize above-mentioned purpose by following technical solution.
In a kind of structure that is used for the rotary steering mechanism of directed drilling, but be provided with shell axial plain bearing, transmission main shaft, eccentric motion mechanism, universal joint, continuous axle, ball bearing, output shaft; In the enclosure, but axial plain bearing be fixedly connected on the transmission main shaft; In the bottom of transmission main shaft eccentric motion mechanism is installed; The lower end of transmission main shaft is connected by taper thread with universal joint; The lower end and the continuous axle of universal joint are hinged; The lower end of continuous axle is connected by taper thread with ball bearing; The bottom of ball bearing is connected by taper thread with output shaft.
The utility model compared with prior art, have simple in structure, stressed rationally, reliable operation, build angle rate height, the characteristics of long service life; Need not carry boring and just can adjust orientation and the inclination angle that drill bit creeps into arbitrarily, simplify the drillng operation program greatly, improve the economic benefit of drillng operation.
Description of drawings:
Fig. 1 is the A section structural representation partly that is used for the rotary steering mechanism of directed drilling.
Fig. 2 is the B section structural representation partly that is used for the rotary steering mechanism of directed drilling.
Fig. 3 is the C section structural representation partly that is used for the rotary steering mechanism of directed drilling.
In the drawings: but 1. shell, 2. axial plain bearing, 3. transmission main shaft, 4. eccentric motion mechanism, 5. universal joint, 6. continuous axle, 7. ball bearing, 8. output shaft.
The specific embodiment:
But the utility model is used for the rotary steering mechanism of directed drilling to be made up of shell 1 axial plain bearing 2, transmission main shaft 3, eccentric motion mechanism 4, universal joint 5, continuous axle 6, ball bearing 7, output shaft 8; In shell 1, but axial plain bearing 2 is fixedly connected on the transmission main shaft 3; In the bottom of transmission main shaft 3 eccentric motion mechanism 4 is installed; The lower end of transmission main shaft 3 and universal joint 5 are connected by taper thread; The lower end of universal joint 5 and continuous axle 6 are hinged; The lower end of continuous axle 6 and ball bearing 7 are connected by taper thread; The bottom of ball bearing 7 and output shaft 8 are connected by taper thread.
When needs are adjusted orientation that rotary steering mechanism creeps into and inclination angle, the utility model is by the orientation and the inclination angle of measurement and control instrument measuring mechanism, again according to the bearing data on ground, control and drive eccentric motion mechanism 4 drive transmission main shafts 3 skews, thereby cause the change at the orientation and the inclination angle of output shaft 8 and target drill, reach and adjust the orientation that drill bit creeps into and the purpose at inclination angle.
The utility model need not be carried boring and just can adjust orientation and the inclination angle that drill bit creeps into arbitrarily, has simplified the drillng operation program greatly, can form high build angle rate.All motion component all are immersed in the lubrication oil works, and combined beam structure is stressed rationally, so this rotary steering mechanism long working life.
Claims (4)
1. a rotary steering mechanism that is used for directed drilling is made up of shell (1), transmission main shaft (3), output shaft (8); But it is characterized in that in its structure, being provided with axial plain bearing (2), eccentric motion mechanism (4), universal joint (5), continuous axle (6), ball bearing (7); In shell (1), but axial plain bearing (2) is fixedly connected on the transmission main shaft (3); In the bottom of transmission main shaft (3) eccentric motion mechanism (4) is installed; The lower end of transmission main shaft (3) is connected with universal joint (5); The lower end of universal joint (5) and continuous axle (6) are hinged; The lower end of continuous axle (6) is connected with ball bearing (7); The bottom of ball bearing (7) is connected with output shaft (8).
2. the rotary steering mechanism that is used for directed drilling according to claim 1 is characterized in that the lower end of transmission main shaft (3) is connected by taper thread with universal joint (5).
3. the rotary steering mechanism that is used for directed drilling according to claim 1 is characterized in that the lower end of continuous axle (6) is connected by taper thread with ball bearing (7).
4. the rotary steering mechanism that is used for directed drilling according to claim 1 is characterized in that the bottom of ball bearing (7) is connected by taper thread with output shaft (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206871732U CN201934022U (en) | 2010-12-17 | 2010-12-17 | Rotary guide mechanism used for directional drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206871732U CN201934022U (en) | 2010-12-17 | 2010-12-17 | Rotary guide mechanism used for directional drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934022U true CN201934022U (en) | 2011-08-17 |
Family
ID=44445544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206871732U Expired - Fee Related CN201934022U (en) | 2010-12-17 | 2010-12-17 | Rotary guide mechanism used for directional drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934022U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900364A (en) * | 2012-09-20 | 2013-01-30 | 天津大学 | Static pointing type rotary guiding drilling tool |
| CN107060644A (en) * | 2016-12-28 | 2017-08-18 | 中国石油大学(华东) | A kind of wheel rotating state directional type rotary steering system and guiding control method |
| CN107060643A (en) * | 2016-12-16 | 2017-08-18 | 中国科学院地质与地球物理研究所 | A kind of hybrid rotary steering system of high build angle rate and its control method |
| WO2024017412A1 (en) * | 2022-07-21 | 2024-01-25 | 北京全地科技有限公司 | Three-dimensional well drilling tool |
-
2010
- 2010-12-17 CN CN2010206871732U patent/CN201934022U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900364A (en) * | 2012-09-20 | 2013-01-30 | 天津大学 | Static pointing type rotary guiding drilling tool |
| CN102900364B (en) * | 2012-09-20 | 2014-10-15 | 天津大学 | Static pointing type rotary guiding drilling tool |
| CN107060643A (en) * | 2016-12-16 | 2017-08-18 | 中国科学院地质与地球物理研究所 | A kind of hybrid rotary steering system of high build angle rate and its control method |
| CN107060643B (en) * | 2016-12-16 | 2019-03-08 | 中国科学院地质与地球物理研究所 | A kind of hybrid rotary steering system of high build angle rate and its control method |
| CN107060644A (en) * | 2016-12-28 | 2017-08-18 | 中国石油大学(华东) | A kind of wheel rotating state directional type rotary steering system and guiding control method |
| CN107060644B (en) * | 2016-12-28 | 2018-12-21 | 中国石油大学(华东) | A kind of wheel rotating state directional type rotary steering system and guiding control method |
| WO2024017412A1 (en) * | 2022-07-21 | 2024-01-25 | 北京全地科技有限公司 | Three-dimensional well drilling tool |
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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: 20110817 Termination date: 20111217 |