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Dongying City, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Comb polymer, method of preparing the same, and use thereof
Patent number
9,938,445
Issue date
Apr 10, 2018
Sinopec Oilfield Service Corporation
Gongrang Li
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Apparatus for well logging capable of forward investigation
Patent number
9,927,548
Issue date
Mar 27, 2018
China Petroleum and Chemical Corporation
Jinzhou Yang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rotating magnetic field downhole power generation device
Patent number
9,598,937
Issue date
Mar 21, 2017
China Petroleum and Chemical Corporation
Wei Chen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus and method for well logging and data processing device
Patent number
9,377,555
Issue date
Jun 28, 2016
China Petroleum and Chemical Corporation
Jinzhou Yang
G01 - MEASURING TESTING
Information
Patent Grant
Downhole casing expansion tool and method of expanding casings usin...
Patent number
9,347,297
Issue date
May 24, 2016
China Petroleum and Chemical Corporation
Zuohui Li
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Static push-the-bit rotary guiding device
Publication number
20180223599
Publication date
Aug 9, 2018
SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY RESEARCH...
Jinzhou Yang
E21 - EARTH DRILLING MINING
Information
Patent Application
Push-the-bit rotary guiding device and application method thereof
Publication number
20170284158
Publication date
Oct 5, 2017
SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD., DRILLING TECHNOLOGY RESEARCH...
Xiao Hongbing
G01 - MEASURING TESTING
Information
Patent Application
APPARATUS AND METHOD FOR WELL LOGGING AND DATA PROCESSING DEVICE
Publication number
20160274265
Publication date
Sep 22, 2016
China Petroleum and Chemical Corporation
Jinzhou YANG
G01 - MEASURING TESTING
Information
Patent Application
Comb polymer, method of preparing the same, and use thereof
Publication number
20150203736
Publication date
Jul 23, 2015
Sinopec Oilfield Service Corporation
Gongrang LI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
ROTATING MAGNETIC FIELD DOWNHOLE POWER GENERATION DEVICE
Publication number
20140251592
Publication date
Sep 11, 2014
SHENGLI DRILLING TECHNOLOG RESEARCH INSTITUTE OF SINOPEC
Wei Chen
F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information
Patent Application
DOWNHOLE CASING EXPANSION TOOL AND METHOD OF EXPANDING CASINGS USIN...
Publication number
20140110136
Publication date
Apr 24, 2014
Drilling Technology Research Institute of Sinopec Oilfield Service Shengli Co...
Zuohui LI
E21 - EARTH DRILLING MINING
Information
Patent Application
APPARATUS AND METHOD FOR WELL LOGGING AND DATA PROCESSING DEVICE
Publication number
20130338925
Publication date
Dec 19, 2013
Jinzhou Yang
G01 - MEASURING TESTING