Title:
HIGH-FLEXIBILITY DOWNHOLE SELF-POWERED WHILE-DRILLING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/218317
Kind Code:
A1
Abstract:
Disclosed is a high-flexibility downhole self-powered while-drilling system, relating to the technical field of drilling. The high-flexibility downhole self-powered while-drilling system comprises articulated sub strings (2), and the output end of each articulated sub string is fixedly connected to a near-downhole electric appliance (9) near the output end of the articulated sub string. According to the high-flexibility downhole self-powered while-drilling system, directional drilling under the condition that a short-radius drill pipe rotates is achieved by means of the articulated sub strings, and particularly, power transmission between the near-downhole electric appliance and a turbine generator (1) is achieved by using a bridged power transmission line (7), thereby solving the problem that the near-downhole electric appliance cannot effectively obtain power, and further promoting the development of short or ultra-short radius drilling, well logging, or stratum testing technologies.
Inventors:
XU ZICHEN (CN)
YANG ZHONGHUA (CN)
WAN XIAOYUE (CN)
YANG ZHONGHUA (CN)
WAN XIAOYUE (CN)
Application Number:
PCT/CN2022/086489
Publication Date:
October 20, 2022
Filing Date:
April 13, 2022
Export Citation:
Assignee:
WAN XIAOYUE (CN)
International Classes:
E21B7/06; E21B41/00; E21B47/00; F03B13/02
Foreign References:
| CN216130870U | 2022-03-25 | |||
| CN112943097A | 2021-06-11 | |||
| CN114320157A | 2022-04-12 | |||
| CN112031653A | 2020-12-04 | |||
| CN112392410A | 2021-02-23 | |||
| CN104499940A | 2015-04-08 | |||
| CN101725338A | 2010-06-09 | |||
| US20180355710A1 | 2018-12-13 |
Attorney, Agent or Firm:
SUZHUO TUOYUN INTELLECTUAL PROPERTY AGENCY (CN)
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