Title:
DRILLING TOOL, DRILLING METHOD AND DRILLING GUIDING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/186055
Kind Code:
A1
Abstract:
A drilling tool, a drilling method and a drilling guiding method are disclosed. The drilling tool comprises: a drill bit (1), a downhole motor, a force transmission mechanism (11), a control device (31) and an attitude measurement device. The downhole motor comprises a stator mechanism and a rotor mechanism, and the drill bit is connected to the lower end of the rotor mechanism. The force transmission mechanism and the attitude measurement device are both mounted to the downhole motor. The control device is electrically connected to the attitude measurement device, is disposed within a rotor of the downhole motor or above the downhole motor, and may control the force transmission mechanism to do radial motion according to a preset steering direction and attitude information measured by the attitude measurement device. The drilling tool solves the problem of difficult trajectory control caused by low drilling speed in drilling small boreholes, and a controllable trajectory three-dimensional drilling technology can be formed.
Inventors:
XU ZICHEN (CN)
YANG ZHONGHUA (CN)
YANG ZHONGHUA (CN)
Application Number:
PCT/CN2023/085303
Publication Date:
October 05, 2023
Filing Date:
March 31, 2023
Export Citation:
Assignee:
BLUELAND ENERGY TECH LIMITED (CN)
International Classes:
E21B4/04; E21B4/02; E21B19/24
Foreign References:
| CN114718443A | 2022-07-08 | |||
| CN113482526A | 2021-10-08 | |||
| CN113107365A | 2021-07-13 | |||
| CN112814568A | 2021-05-18 | |||
| CN112878910A | 2021-06-01 | |||
| US20130240268A1 | 2013-09-19 | |||
| US20170037685A1 | 2017-02-09 |
Attorney, Agent or Firm:
SUZHOU TUOHONG INTELLECTUAL PROPERTY AGENCY CO., LTD et al. (CN)
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