Inventor
HU JINGDONG
CN2 patents
Patents
2 patentsUS9890318B1Feb 13, 2018
Drilling fluid additive composition and water-based drilling fluid suitable for high-pressure plugging
UNIV CHINA PETROLEUM BEIJING15 citations82
US9902890B1Feb 27, 2018
Drilling fluid additive composition suitable for coal-bed gas wells, and water-based drilling fluid and use thereof
UNIV CHINA PETROLEUM BEIJING1 citations50