Title:
ROTARY STEERABLE DRILLING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/165936
Kind Code:
A1
Abstract:
A rotary steerable drilling device, comprising a plurality of cylinders (1) which are fixedly connected in series, at least part of the adjacent cylinders being electrically connected by means of an electric power connection unit (2). The electric power connection unit comprises a first electrical connection assembly (21) and a second electrical connection assembly (22); each cylinder that is electrically connected has one end provided with the first electrical connection assembly, and the other end provided with the second electrical connection assembly; the adjacent cylinders are electrically connected by means of the first electrical connection assembly and the second electrical connection assembly; the first electrical connection assembly and the second electrical connection assembly on the same cylinder are electrically connected; the first electrical connection assembly comprises a first electrical connection ring (211) which is annularly arranged; the first electrical connection ring comprises a plurality of first conductive areas (2111) and first insulation areas (2112) which are distributed in a circumferential direction and arranged at intervals; and the second electrical connection assembly comprises a second electrical connection ring (221) which is annularly arranged; and the second electrical connection ring comprises a plurality of second conductive areas (2211) and second insulation areas (2212) which are arranged at intervals. The rotary steerable drilling device can implement multi-path electric power connection between the adjacent cylinders, and has the advantages of being convenient to mount, high in conductive reliability and the like.
Inventors:
XIE QIJUN (CN)
DI QINGYUN (CN)
LIU QINGBO (CN)
YANG YONGYOU (CN)
HONG LINFENG (CN)
WANG XIANGYANG (CN)
DI QINGYUN (CN)
LIU QINGBO (CN)
YANG YONGYOU (CN)
HONG LINFENG (CN)
WANG XIANGYANG (CN)
Application Number:
PCT/CN2021/081994
Publication Date:
August 11, 2022
Filing Date:
March 22, 2021
Export Citation:
Assignee:
INST GEOLOGY & GEOPHYSICS CAS (CN)
International Classes:
E21B7/04
Foreign References:
| CN101315022A | 2008-12-03 | |||
| CN203626888U | 2014-06-04 | |||
| CN102865038A | 2013-01-09 | |||
| CN109779524A | 2019-05-21 | |||
| DE4037259A1 | 1992-05-27 | |||
| US4220381A | 1980-09-02 |
Attorney, Agent or Firm:
BEIJING JUNHUI INTELLECTUAL PROPERTY AGENT OFFICE (ORDINARY PARTNERSHIP) (CN)
Download PDF: