Long CHAI

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Filtration control agent and a drilling fluid containing the same
- Patent number 9,243,180
- Issue date Jan 26, 2016
- China Petroleum and Chemical Corporation
- Xiaohua Yang
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
MODIFIED STARCH, PREPARATION METHOD AND USE OF THE SAME, AND DRILLI...
- Publication number 20140186626
- Publication date Jul 3, 2014
- SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING
- Zhifa WANG
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
DISPERSANT AND A DRILLING FLUID CONTAINING THE SAME
- Publication number 20130079257
- Publication date Mar 28, 2013
- SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING
- Yongxue Lin
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Filtration Control Agent And A Drilling Fluid Containing The Same
- Publication number 20130079256
- Publication date Mar 28, 2013
- SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING
- Xiaohua YANG
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...