CN102425375A - Deflection device - Google Patents
Deflection device Download PDFInfo
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- CN102425375A CN102425375A CN2011103009466A CN201110300946A CN102425375A CN 102425375 A CN102425375 A CN 102425375A CN 2011103009466 A CN2011103009466 A CN 2011103009466A CN 201110300946 A CN201110300946 A CN 201110300946A CN 102425375 A CN102425375 A CN 102425375A
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- circular ring
- eccentric circular
- eccentric
- inner hole
- deflection device
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Abstract
The invention belongs to the field of offset guide tools of rotary navigational drilling technology and specifically relates to a deflection device. The deflection device comprises a rotating shaft, an inner eccentric circular ring, an outer eccentric circular ring and a circular fixed ring, wherein each of the inner eccentric circular ring and the outer eccentric circular ring comprises two circles, namely an inner hole and an outer circle, the centers of the two circles, namely the inner hole and the outer circle in each eccentric circular ring are not arranged on the same point, the inner hole of the inner eccentric circular ring is sheathed on the rotating shaft, the inner hole of the outer eccentric circular ring is sheathed on the outer circle of the inner eccentric circular ring, and the inner hole of the circular fixed ring is sheathed on the outer circle of the outer eccentric circular ring. The deflection device has the beneficial effects that all the parts of the deflection device are designed into a whole, thereby being particularly suitable for being used and installed in a narrow space range; furthermore, the deflection device can ensure that the synthesis of the two eccentric circular rings through the rotating shaft can realize the three-dimensional expected deflection function with different eccentric values in any direction.
Description
Technical field
The invention belongs to the offset guiding tool field of rotary steerable drilling technology, be specifically related to a kind of kick-off device.
Background technology
Up to now, directed-drilling technique has experienced three milestones: utilize whipstock (whipstock) directed drilling; Utilize down-hole motor to cooperate the bent sub directed drilling; Utilize steerable motor (curved housing down-hole motor) directed drilling.Being widely used of these three kinds of directional drill tools promoted the fast development of directed-drilling technique, makes that today, people can use inclined shaft, cluster well, horizontal well, horizontal branch well technological development oil field.Along with the development of petroleum industry, in order to obtain better economic benefit, need to bore deep-well, ultradeep well, extended reach well and long apart from horizontal well, and usually will be in more complicated stratum such as the steep structural belt drilling well of height.These are all had higher requirement to directional drill tool.In order to overcome the deficiency of slide-and-guide technology, from the later stage eighties 20th century, the rotary steerable drilling technology that begins one's study in the world, rotary steerable drilling system comes down to a downhole closed loop tapered stabilizer and measures the tool system that conveyor apparatus constitutes jointly.
For this reason; Country " 12. five " novel rotary steerable drilling system is confirmed as great scientific research special project; And core, critical component that high build angle rate hole trajectory control instrument is novel rotary steerable drilling system; Be the indispensable technology of controlling the bad hole track accurately, flexibly, wherein kick-off device is again an indispensable instrument in the high build angle rate hole trajectory control instrument.Simultaneously; Existing rotary steerable drilling system creeps into mode with rotary steering, can adjust hole deviation and orientation automatically, neatly, has improved bit speed and drilling safety property greatly; The TRAJECTORY CONTROL precision is also higher relatively; But because its complex structure, cost is expensive, and it is very difficult to operate in narrow and small place, some space.
Summary of the invention
The technical problem that the present invention solves provides a kind of simple in structure, and is with low cost and be applicable to the kick-off device of small space operation.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of kick-off device; Comprise axis of rotation, interior eccentric annulus, outer eccentric annulus, circular retainer plate; Eccentric annulus, outer eccentric annulus include endoporus, two circles of cylindrical in said, and the center of circle of said endoporus, two circles of cylindrical is in same point, said in eccentric annulus inner hole sleeve on said axis of rotation; Said outer eccentric annulus inner hole sleeve is in said on the eccentric annulus cylindrical, on the eccentric outside annulus cylindrical of said circular retainer plate inner hole sleeve.
Described kick-off device; Also comprise three needle bearings; Wherein first needle bearing is installed between axis of rotation and the interior eccentric annulus endoporus; Between eccentric annulus cylindrical and the outer eccentric annulus endoporus, the 3rd needle bearing was installed between outer eccentric annulus cylindrical and the circular retainer plate in second needle bearing was installed in.
The invention has the beneficial effects as follows the volume that has reduced kick-off device; Be particularly suitable in narrow spatial dimension, using, installing, and can guarantee through the stereoscopic three-dimensional expection deflecting function of axis of rotation with the synthetic realization arbitrary orientation of two eccentric annulus, different eccentricity values.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment technical scheme of the present invention is further specified.
Fig. 1 is the kick-off device structure chart of one embodiment of the invention.
The specific embodiment
As shown in Figure 1; The kick-off device of the high build angle rate hole trajectory control instrument that the embodiment of the invention provides, it comprises axis of rotation 1, three needle bearings (first needle bearing 2, second needle bearing 4 and the 3rd needle bearing 6), two eccentric annulus (eccentric annulus 3 and outer eccentric annulus 5 promptly) and circular retainer plate 7.Wherein the material of axis of rotation 1 is the 42CrMo steel; First needle bearing 2, second needle bearing 4 and the 3rd needle bearing 6 are standard component, and material is the 65Mn steel; In eccentric annulus, comprise endoporus, two circles of cylindrical, and the center of circle of said endoporus, two circles of cylindrical is not in same point.Outer eccentric annulus, comprise endoporus, two circles of cylindrical, and the center of circle of said endoporus, two circles of cylindrical is in same point, material is the 65Mn steel.Circular retainer plate 7 materials are the 65Mn steel.
First needle bearing 2 is installed between axis of rotation 1 and interior eccentric hoop 3 endoporus.Interior eccentric hoop 3 is installed between first needle bearing 2 and second needle bearing 4; Second needle bearing 4 is installed between interior eccentric hoop cylindrical and the outer eccentric annulus endoporus; Outer eccentric annulus 5 is installed between second needle bearing 4 and the 3rd needle bearing 6; The 3rd needle bearing 6 is installed between outer eccentric annulus cylindrical and the retainer plate endoporus.
When using the kick-off device of present embodiment; Circular retainer plate 7 cylindricals are fixed on other devices and go up motionless; 3 one angles of eccentric annulus in rotation; During outer eccentric annulus 5 another angles of rotation simultaneously, just can realize the off-centre of axis of rotation 1, promptly the eccentricity value A of axis of rotation and eccentric azimuth a change thereupon.
It should be noted last that; The above specific embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the spirit and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (2)
1. kick-off device; It is characterized in that, comprise axis of rotation, interior eccentric annulus, outer eccentric annulus, circular retainer plate, said in eccentric annulus, outer eccentric annulus include endoporus, two circles of cylindrical; And the center of circle of said endoporus, two circles of cylindrical is not in same point; Eccentric annulus inner hole sleeve is on said axis of rotation in said, and said outer eccentric annulus inner hole sleeve is in said on the eccentric annulus cylindrical, on the eccentric outside annulus cylindrical of said circular retainer plate inner hole sleeve.
2. kick-off device according to claim 1; It is characterized in that; Also comprise three needle bearings; Wherein first needle bearing is installed between axis of rotation and the interior eccentric annulus endoporus, and between eccentric annulus cylindrical and the outer eccentric annulus endoporus, the 3rd needle bearing was installed between outer eccentric annulus cylindrical and the circular retainer plate endoporus in second needle bearing was installed in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103009466A CN102425375A (en) | 2011-10-09 | 2011-10-09 | Deflection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103009466A CN102425375A (en) | 2011-10-09 | 2011-10-09 | Deflection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102425375A true CN102425375A (en) | 2012-04-25 |
Family
ID=45959400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103009466A Pending CN102425375A (en) | 2011-10-09 | 2011-10-09 | Deflection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102425375A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794345A (en) * | 2012-08-29 | 2012-11-28 | 绍兴文理学院 | Eccentric mechanism of vertical type numerical control rotary pressing machine |
| CN113399688A (en) * | 2021-07-10 | 2021-09-17 | 浙江尔格科技股份有限公司 | Raw material rod automatic feeding device for machine tool machining |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2545352Y (en) * | 2002-04-19 | 2003-04-16 | 胜利石油管理局钻井工程技术公司 | Rotary guide for drilling |
| CN1853029A (en) * | 2003-08-18 | 2006-10-25 | 法默机械服务有限公司 | Angle and reactive torque control device for a gerotor type motor provided with a spindle and drilling bit in a bended drill string |
| CN1965143A (en) * | 2004-01-28 | 2007-05-16 | 哈利伯顿能源服务公司 | Rotary vector gear for use in rotary steerable tools |
| CN101473102A (en) * | 2006-03-27 | 2009-07-01 | 弗朗索瓦·米勒 | Device for steering drilling tools |
| CN201738813U (en) * | 2010-04-28 | 2011-02-09 | 李孝勇 | Well drilling equipment and well fixing equipment for radial horizontal well with ultra-short radius |
| CN201786254U (en) * | 2010-09-15 | 2011-04-06 | 长江大学 | Stepless adjustable borehole track control tool |
-
2011
- 2011-10-09 CN CN2011103009466A patent/CN102425375A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2545352Y (en) * | 2002-04-19 | 2003-04-16 | 胜利石油管理局钻井工程技术公司 | Rotary guide for drilling |
| CN1853029A (en) * | 2003-08-18 | 2006-10-25 | 法默机械服务有限公司 | Angle and reactive torque control device for a gerotor type motor provided with a spindle and drilling bit in a bended drill string |
| CN1965143A (en) * | 2004-01-28 | 2007-05-16 | 哈利伯顿能源服务公司 | Rotary vector gear for use in rotary steerable tools |
| CN101473102A (en) * | 2006-03-27 | 2009-07-01 | 弗朗索瓦·米勒 | Device for steering drilling tools |
| CN201738813U (en) * | 2010-04-28 | 2011-02-09 | 李孝勇 | Well drilling equipment and well fixing equipment for radial horizontal well with ultra-short radius |
| CN201786254U (en) * | 2010-09-15 | 2011-04-06 | 长江大学 | Stepless adjustable borehole track control tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794345A (en) * | 2012-08-29 | 2012-11-28 | 绍兴文理学院 | Eccentric mechanism of vertical type numerical control rotary pressing machine |
| CN113399688A (en) * | 2021-07-10 | 2021-09-17 | 浙江尔格科技股份有限公司 | Raw material rod automatic feeding device for machine tool machining |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120425 |