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Chengdu, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Controllable downhole drilling and completion tool separating devic...
Patent number
11,988,055
Issue date
May 21, 2024
SOUTHWEST PETROLEUM UNIVERSITY
Gao Li
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure pulse communication system and method during gas drilling
Patent number
11,713,674
Issue date
Aug 1, 2023
SOUTHWEST PETROLEUM UNIVERSITY
Xingyu Chen
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PREPARING HEAT-CONDUCTIVE CEMENT SLURRY FOR WELL CEMENTA...
Publication number
20240166936
Publication date
May 23, 2024
SOUTHWEST PETROLEUM UNIVERSITY
Gao LI
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
DEVICE FOR PREVENTING ABRUPT BLOCKAGE IN BLOOIE LINE OF GAS DRILLING
Publication number
20240052713
Publication date
Feb 15, 2024
SOUTHWEST PETROLEUM UNIVERSITY
Hongtao Li
E21 - EARTH DRILLING MINING
Information
Patent Application
CONTROLLABLE DOWNHOLE DRILLING AND COMPLETION TOOL SEPARATING DEVIC...
Publication number
20230392464
Publication date
Dec 7, 2023
SOUTHWEST PETROLEUM UNIVERSITY
Gao Li
E21 - EARTH DRILLING MINING
Information
Patent Application
ACTIVE INTELLIGENT WELLBORE PRESSURE CONTROL SYSTEM
Publication number
20230235636
Publication date
Jul 27, 2023
SOUTHWEST PETROLEUM UNIVERSITY
Hongtao LI
E21 - EARTH DRILLING MINING
Information
Patent Application
REMOTE INTELLIGENT ACTIVE DRILLING PRESSURE CONTROL SYSTEM AND METHOD
Publication number
20230235635
Publication date
Jul 27, 2023
SOUTHWEST PETROLEUM UNIVERSITY
Gao Li
E21 - EARTH DRILLING MINING
Information
Patent Application
PRESSURE PULSE COMMUNICATION SYSTEM AND METHOD DURING GAS DRILLING
Publication number
20230095056
Publication date
Mar 30, 2023
SOUTHWEST PETROLEUM UNIVERSITY
Xingyu CHEN
E21 - EARTH DRILLING MINING