Title:
ROTARY GUIDE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/244629
Kind Code:
A1
Abstract:
A rotary guide device, which comprises a rotary guide sub (1) and at least one set of universal drill pressure transfer subs (2). The rotary guide sub (1) at least comprises a mandrel (11), a guide sleeve (12), and a deflection control assembly (13) comprising an abutment element (121); the universal drill pressure transfer sub (2) is connected to the upper end of the rotary guide sub (1); the universal drill pressure transfer sub (2) comprises a universal joint (21); the deflection control assembly (13) can drive the guide sleeve (12) and the mandrel (11) to rotate around the center of the universal joint (21). The rotary guide sub (1) can easily generate a rotation angle, can achieve a high build rate, can reduce the working load of rotary guide, and can reduce wear in rotary guide.
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Inventors:
XU ZICHEN (CN)
WAN XIAOYUE (CN)
WAN XIAOYUE (CN)
Application Number:
PCT/CN2020/094661
Publication Date:
December 10, 2020
Filing Date:
June 05, 2020
Export Citation:
Assignee:
WAN XIAOYUE (CN)
International Classes:
E21B7/06; E21B17/10
Domestic Patent References:
| WO2017087490A1 | 2017-05-26 |
Foreign References:
| CN108005579A | 2018-05-08 | |||
| CN107060643A | 2017-08-18 | |||
| CN208396654U | 2019-01-18 | |||
| CN1299915A | 2001-06-20 | |||
| CN109025820A | 2018-12-18 | |||
| US20140345944A1 | 2014-11-27 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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