Yonggui Liu

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Daqing City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Shale inhibitors used in the water-based fluid for shale formation
- Patent number 10,787,602
- Issue date Sep 29, 2020
- CNPC USA Corporation
- Chun Zhou
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
SHALE INHIBITORS USED IN THE WATER-BASED FLUID FOR SHALE FORMATION
- Publication number 20190382642
- Publication date Dec 19, 2019
- CNPC USA CORPORATION
- Chun Zhou
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...