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Chengdu City, CN
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last 30 patents
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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
Patents Applications
last 30 patents
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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