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Patents Grants
last 30 patents
Information
Patent Grant
Drilling tool
Patent number
11,946,342
Issue date
Apr 2, 2024
China Petroleum and Chemical Corporation
Baoping Lu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Well drilling acceleration tool
Patent number
11,920,437
Issue date
Mar 5, 2024
China Petroleum and Chemical Corporation
Haiping Zhang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole multidimensional imaging feature extraction method and ima...
Patent number
11,913,324
Issue date
Feb 27, 2024
China Petroleum and Chemical Corporation
Yijin Zeng
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling speed increasing device
Patent number
11,898,417
Issue date
Feb 13, 2024
China Petroleum and Chemical Corporation
Jiachang Wang
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
STATE SELF-ADAPTIVE TURBINE TYPE PULSE GENERATOR AND DOWNHOLE DRILL...
Publication number
20250092740
Publication date
Mar 20, 2025
China Petroleum and Chemical Corporation
Jiachang WANG
E21 - EARTH DRILLING MINING
Information
Patent Application
POLYMER, THICKENING AGENT, AND PREPARATION METHOD THEREFOR
Publication number
20240376242
Publication date
Nov 14, 2024
China Petroleum and Chemical Corporation
Shidong DING
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
OIL-GAS WELL, WELL CEMENTATION METHOD, AND CEMENT COMPOSITION
Publication number
20240271504
Publication date
Aug 15, 2024
China Petroleum and Chemical Corporation
Shiming ZHOU
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
POLYMER HAVING DISPERSING FUNCTION, POLYCARBOXYLIC ACID CEMENT DISP...
Publication number
20230391941
Publication date
Dec 7, 2023
China Petroleum and Chemical Corporation
Xia MIAO
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
POLYMER HAVING DISPERSING FUNCTION, OIL WELL CEMENT DISPERSANT, AND...
Publication number
20230286862
Publication date
Sep 14, 2023
China Petroleum and Chemical Corporation
Shiming ZHOU
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
WELL DRILLING ACCELERATION TOOL
Publication number
20230003084
Publication date
Jan 5, 2023
China Petroleum and Chemical Corporation
Haiping ZHANG
E21 - EARTH DRILLING MINING
Information
Patent Application
DRILLING SPEED INCREASING DEVICE
Publication number
20230003085
Publication date
Jan 5, 2023
China Petroleum and Chemical Corporation
Jiachang WANG
E21 - EARTH DRILLING MINING
Information
Patent Application
DRILLING TOOL
Publication number
20220412165
Publication date
Dec 29, 2022
China Petroleum and Chemical Corporation
Baoping LU
E21 - EARTH DRILLING MINING
Information
Patent Application
DOWNHOLE MULTIDIMENSIONAL IMAGING FEATURE EXTRACTION METHOD AND IMA...
Publication number
20220333478
Publication date
Oct 20, 2022
China Petroleum and Chemical Corporation
Yijin ZENG
E21 - EARTH DRILLING MINING