Title:
MECHANICS-ELECTRONICS-HYDRAULICS INTEGRATED DIRECTIONAL TOOL FOR CONTINUOUS TUBING DRILLING
Document Type and Number:
WIPO Patent Application WO/2024/007955
Kind Code:
A1
Abstract:
The present invention provides a mechanics-electronics-hydraulics integrated directional tool for continuous tubing drilling. The directional tool comprises an electronic control module; and a hydraulic driving module, wherein the hydraulic driving module comprises an electric motor in signal connection with the electronic control module, an oil bag unit arranged between the electronic control module and the electric motor, a bidirectional hydraulic pump connected to the electric motor, and a piston unit, which compensates for hydraulic oil to balance a difference between internal and external pressures of the hydraulic driving module stored in the oil bag unit, the piston unit comprising a piston housing and a piston, and a first liquid cavity and a second liquid cavity in communication with the bidirectional hydraulic pump being formed at two ends of the piston; and a mechanical transmission module, which has two ends respectively connected to the piston and a downhole drilling tool, wherein the electronic control module can transmit a ground control command to the hydraulic driving module to control the electric motor to drive the bidirectional pump to alternately provide high-pressure oil and low-pressure oil in the first liquid cavity and the second liquid cavity, such that the piston moves in a reciprocating manner in an axial direction, and the mechanical driving module can convert the axial motion of the piston into rotation to drive the downhole drilling tool to rotate, so as to adjust the downhole drilling tool.
Inventors:
HU LIANG (CN)
RUAN CHENLIANG (CN)
CHEN WUJUN (CN)
GU LEI (CN)
CHENG GUANGMING (CN)
YIN HUIBO (CN)
CAO HAITAO (CN)
RUAN CHENLIANG (CN)
CHEN WUJUN (CN)
GU LEI (CN)
CHENG GUANGMING (CN)
YIN HUIBO (CN)
CAO HAITAO (CN)
Application Number:
PCT/CN2023/103937
Publication Date:
January 11, 2024
Filing Date:
June 29, 2023
Export Citation:
Assignee:
CHINA PETROLEUM & CHEM CORP (CN)
SINOPEC PETROLEUM ENGINEERING TECH RESEARCH INSTITUTE CO LTD (CN)
SHELFOIL PETROLEUM EQUIPMENT & SERVICES CO LTD (CN)
SINOPEC PETROLEUM ENGINEERING TECH RESEARCH INSTITUTE CO LTD (CN)
SHELFOIL PETROLEUM EQUIPMENT & SERVICES CO LTD (CN)
International Classes:
E21B7/04
Foreign References:
| CN105888550A | 2016-08-24 | |||
| EP1245783A2 | 2002-10-02 | |||
| CN114508520A | 2022-05-17 | |||
| CN114109256A | 2022-03-01 | |||
| CN105134071A | 2015-12-09 | |||
| CN106050144A | 2016-10-26 | |||
| US20120145462A1 | 2012-06-14 |
Attorney, Agent or Firm:
YUHUA UNITED INTELLECTUAL PROPERTY LAW FIRM (CN)
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