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Patents Grants
last 30 patents
Information
Patent Grant
Wireless remote control method and system for controllable rotary s...
Patent number
12,312,934
Issue date
May 27, 2025
CHENGDU UNIVERSITY OF TECHNOLOGY
Jianguo Zhao
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole traction system
Patent number
12,264,544
Issue date
Apr 1, 2025
CHENGDU UNIVERSITY OF TECHNOLOGY
Jianguo Zhao
E21 - EARTH DRILLING MINING
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