CN203626608U - Reverse eccentric fixed wing rotary steering tool - Google Patents
Reverse eccentric fixed wing rotary steering tool Download PDFInfo
- Publication number
- CN203626608U CN203626608U CN201320778647.8U CN201320778647U CN203626608U CN 203626608 U CN203626608 U CN 203626608U CN 201320778647 U CN201320778647 U CN 201320778647U CN 203626608 U CN203626608 U CN 203626608U
- Authority
- CN
- China
- Prior art keywords
- urceolus
- barrel body
- rotary
- inner core
- rotate
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of large displacement well drilling, in particular to a reverse eccentric fixed wing rotary steering tool. Rotary sealed bearings are respectively mounted at upper and lower ends between an irrotional outer barrel body and a rotary inner barrel body of the tool; the irrotional outer barrel body and the rotary inner barrel body are connected by a connection tool; the rotary inner barrel body is internally provided with an outer barrel positioning electronic control device; the lower end of the rotary inner barrel body is connected with a drill bit; a rotary inner barrel coupling coil is mounted on the outer wall of the rotary inner barrel body; an irrotional outer barrel coupling coil is mounted on the inner wall of the irrotional outer barrel body. According to the reverse eccentric fixed wing rotary steering tool, the control on well deviation and orientation is realized under the rotary state, the occurrence of complicated underground conditions and accidents that well tracks are out of control and the like is reduced for the drilling operation of a large displacement well, the control capacity and the drilling speed of the well tracks are improved, and the smooth completion of the drilling construction of the large displacement well is ensured.
Description
Technical field:
The utility model relates to a kind of extended reach well drilling technology field, particularly a kind of oppositely eccentric type fixed-wing rotary steerable tool.
Background technology:
Steerable drilling technology is the new technology developing rapidly in recent years, is the very useful control technology that realizes hole trajectory control.Steerable drilling technology mainly comprises slide-and-guide technology and the large class of rotary steering technology two.When the former refers to guiding operation, the drill string on steering tool top does not rotate, and only has along the slip of borehole axis direction.Latter refers to realizes guiding in the continuous rotary course of drill string.For slide-and-guide, frictional resistance, well are clean etc., and problem is the key factor that affects its result of use.Along with the continuous increase of displacement and well depth, drill string does not rotate and must cause frictional resistance, moment of torsion excessive, bearing swing is serious and even out of control. the problems such as hole cleaning is poor, thereby make directional well, horizontal well, easily there is well track down hole problem and the dangerous accident of waiting out of control in the drillng operation of extended reach well especially.Rotary steering can overcome these unfavorable factors preferably, improves the control ability of well track.Grasp already extended reach well rotary steerable drilling technology abroad, due to not transferring technology of foreign corporation, only provide service.For meeting domestic and international extended reach well market demand, be necessary that exploitation has the rotary steerable tool of the independent intellectual property rights of oneself.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of oppositely eccentric type fixed-wing rotary steerable tool, this instrument has been realized the control that can complete hole deviation and orientation under rotation status, make the drillng operation of extended reach well reduce well track down hole problem and the dangerous accident of waiting out of control that occur, the control ability and the rate of penetration that improve well track, can guarantee that the wellbore construction of extended reach well completes smoothly.Overcome existing slide-and-guide technology the well track deficiency that waits down hole problem and dangerous accident out of control has easily occurred.
Technical solution adopted in the utility model is: a kind of oppositely eccentric type fixed-wing rotary steerable tool, comprises and do not rotate urceolus body and rotation inner core body, do not rotate upper and lower two ends between urceolus body and rotation inner core body rotatory sealing bearing is all installed, do not rotate between urceolus body and rotation inner core body and connect by fastening means, in rotation inner core body, urceolus positioning electronic control device is set, rotation inner core body lower end connects drill bit, on rotation inner core body outer wall, rotation inner core coupling coil is installed, do not rotate in urceolus inner body wall and install and do not rotate urceolus coupling coil, do not rotate urceolus body outer wall and be separately installed with up and down eccentric centralizer and the eccentric centralizer of nearly drill bit, on the eccentric centralizer of nearly drill bit, install and do not rotate urceolus tool-face electronic measuring device.
The beneficial effects of the utility model are: the utility model can complete the control in hole deviation and orientation under rotation status, make the drillng operation of extended reach well reduce well track down hole problem and the dangerous accident of waiting out of control that occur, the control ability and the rate of penetration that improve well track, can guarantee that the wellbore construction of extended reach well completes smoothly.
Accompanying drawing explanation:
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
The specific embodiment:
As shown in Figure 1, a kind of oppositely eccentric type fixed-wing rotary steerable tool, comprises and does not rotate urceolus body 5 and rotation inner core body 6, do not rotate upper and lower two ends between urceolus body 5 and rotation inner core body 6 rotatory sealing bearing 1 is all installed, do not rotate between urceolus body 5 and rotation inner core body 6 and connect by fastening means 4, the rotation inner core body 6 interior urceolus positioning electronic control device 3 that arrange, rotation inner core body 6 lower ends connect drill bit 11, on rotation inner core body 6 outer walls, rotation inner core coupling coil 8 is installed, do not rotate on urceolus body 5 inwalls and install and do not rotate urceolus coupling coil 7, do not rotate urceolus body 5 outer walls and be separately installed with up and down eccentric centralizer 2 and the eccentric centralizer 9 of nearly drill bit, on the eccentric centralizer 9 of nearly drill bit, install and do not rotate urceolus tool-face electronic measuring device 10.
Rotatory sealing bearing 1 is rotation inner core body 6 rotation torques not to be delivered to not rotate between urceolus body 5 and inner/outer tube, do not allow to enter landwaste solid matter.The effect of eccentric centralizer 2 and the eccentric centralizer 9 of nearly drill bit is that assurance instrument is always inclined.Not rotating urceolus body 5 is in the time that down-hole equipment rotates, to be inactive state, guarantees tool tilt state.Not rotating urceolus coupling coil 7 is measurement mechanism stationary singnal outputs of the direction of urceolus tool-face.Not rotating urceolus tool-face electronic measuring device 10 is the measurement mechanisms for the direction of measurement while drilling urceolus tool-face.
Urceolus positioning electronic control device 3 is that electronic signal reception and the control device that inner/outer tube connects controlled on ground.Fastening means 4 does not rotate for controlling the fastening means that urceolus body 5 rotates.Rotation inner core body 6 is the inner tubes that drive drill bit for connecting rotation drilling tool.Rotation inner core coupling coil 8 is to receive not rotate urceolus coupling coil 7 measurement mechanism stationary singnal receiving terminals, and signal is passed to the MWD on top.
Be understandable that, above about specific descriptions of the present utility model, only for being described, the utility model is not limited to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as meet, all within protection domain of the present utility model.
Claims (1)
1. a reverse eccentric type fixed-wing rotary steerable tool, comprises and does not rotate urceolus body (5) and rotation inner core body (6), it is characterized in that: do not rotate upper and lower two ends between urceolus body (5) and rotation inner core body (6) rotatory sealing bearing (1) is all installed, do not rotate between urceolus body (5) and rotation inner core body (6) and connect by fastening means (4), in rotation inner core body (6), urceolus positioning electronic control device (3) is set, rotation inner core body (6) lower end connects drill bit (11), on rotation inner core body (6) outer wall, rotation inner core coupling coil (8) is installed, do not rotate on urceolus body (5) inwall and install and do not rotate urceolus coupling coil (7), do not rotate urceolus body (5) outer wall and be separately installed with up and down eccentric centralizer (2) and the nearly eccentric centralizer of drill bit (9), urceolus tool-face electronic measuring device (10) is not rotated in the upper installation of the nearly eccentric centralizer of drill bit (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320778647.8U CN203626608U (en) | 2013-11-28 | 2013-11-28 | Reverse eccentric fixed wing rotary steering tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320778647.8U CN203626608U (en) | 2013-11-28 | 2013-11-28 | Reverse eccentric fixed wing rotary steering tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203626608U true CN203626608U (en) | 2014-06-04 |
Family
ID=50813097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320778647.8U Expired - Fee Related CN203626608U (en) | 2013-11-28 | 2013-11-28 | Reverse eccentric fixed wing rotary steering tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203626608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285512A (en) * | 2016-10-10 | 2017-01-04 | 贵州高峰石油机械股份有限公司 | A kind of eccentric centralizer and using method thereof |
| CN108678670A (en) * | 2018-08-01 | 2018-10-19 | 徐芝香 | Camcylinder pushing type rotary steerable tool |
-
2013
- 2013-11-28 CN CN201320778647.8U patent/CN203626608U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285512A (en) * | 2016-10-10 | 2017-01-04 | 贵州高峰石油机械股份有限公司 | A kind of eccentric centralizer and using method thereof |
| CN106285512B (en) * | 2016-10-10 | 2018-10-30 | 贵州高峰石油机械股份有限公司 | A kind of bias centralizer and its application method |
| CN108678670A (en) * | 2018-08-01 | 2018-10-19 | 徐芝香 | Camcylinder pushing type rotary steerable 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: 20140604 Termination date: 20141128 |
|
| EXPY | Termination of patent right or utility model |