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Chengdu, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Two-stage reverse-torque bent screw orientation tool
Patent number
12,110,794
Issue date
Oct 8, 2024
CHENGDU UNIVERSITY OF TECHNOLOGY
Qingyou Liu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole explosion robot based on planetary roller screw telescopin...
Patent number
11,668,148
Issue date
Jun 6, 2023
CHENGDU UNIVERSITY OF TECHNOLOGY
Xuelian Dong
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for controlling toe-end sliding sleeve of horizontal well ba...
Patent number
11,473,401
Issue date
Oct 18, 2022
University of Electronic Science and Technology of China
Hua Wang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Physical simulation and calibration device and method for formation...
Patent number
11,067,492
Issue date
Jul 20, 2021
Southwest Petroleum University
Tianshou Ma
E21 - EARTH DRILLING MINING
Information
Patent Grant
Dynamic inwardly eccentrically-placed directional drill bit type ro...
Patent number
10,233,694
Issue date
Mar 19, 2019
SOUTHWEST PETROLEUM UNIVERSITY
Wei Li
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
DOWNHOLE TRACTION SYSTEM
Publication number
20240360733
Publication date
Oct 31, 2024
Chengdu University of Technology
Jianguo ZHAO
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD, APPARATUS AND SYSTEM FOR AUTOMATICALLY ADJUSTING OPENING DE...
Publication number
20240310861
Publication date
Sep 19, 2024
Chengdu University of Technology
Jianguo ZHAO
G05 - CONTROLLING REGULATING
Information
Patent Application
WIRELESS REMOTE CONTROL METHOD AND SYSTEM FOR CONTROLLABLE ROTARY S...
Publication number
20240093589
Publication date
Mar 21, 2024
Chengdu University of Technology
Jianguo ZHAO
E21 - EARTH DRILLING MINING
Information
Patent Application
TWO-STAGE REVERSE-TORQUE BENT SCREW ORIENTATION TOOL
Publication number
20240093554
Publication date
Mar 21, 2024
Chengdu University of Technology
Qingyou LIU
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR CONTROLLING TOE-END SLIDING SLEEVE OF HORIZONTAL WELL BA...
Publication number
20210238955
Publication date
Aug 5, 2021
University of Electronic Science and Technology of China
Hua WANG
E21 - EARTH DRILLING MINING
Information
Patent Application
PHYSICAL SIMULATION AND CALIBRATION DEVICE AND METHOD FOR FORMATION...
Publication number
20200300746
Publication date
Sep 24, 2020
SouthWest Petroleum University
Tianshou MA
E21 - EARTH DRILLING MINING
Information
Patent Application
DYNAMIC INWARDLY ECCENTRICALLY-PLACED DIRECTIONAL DRILL BIT TYPE RO...
Publication number
20180100352
Publication date
Apr 12, 2018
SOUTHWEST PETROLEUM UNIVERSITY
Wei LI
E21 - EARTH DRILLING MINING