Inventor
SUN HAIFANG
CN10 patents
⚠️ This page may combine multiple inventors who share the name “SUN HAIFANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHINA UNIV OF PETROLEUM (BEIJING)
5 patentsUS9790415B1Oct 17, 2017
Modified silicon dioxide nano-particles and preparation method thereof, and drilling fluid suitable for shale gas wells
CHINA UNIV OF PETROLEUM (BEIJING)22 citations92
US9783725B1Oct 10, 2017
Drilling fluid additive composition and water-based drilling fluid suitable for horizontal shale gas wells
CHINA UNIV OF PETROLEUM (BEIJING)14 citations82
US9790417B1Oct 17, 2017
High-density water-based drilling fluid suitable for horizontal shale gas wells
CHINA UNIV OF PETROLEUM (BEIJING)2 citations71
US9783726B1Oct 10, 2017
Environment-friendly water-based drilling fluid applicable to horizontal shale gas wells
CHINA UNIV OF PETROLEUM (BEIJING)6 citations71
US9834717B1Dec 5, 2017
Drilling fluid additive composition and pseudo oil-based drilling fluid suitable for horizontal shale gas wells
CHINA UNIV OF PETROLEUM (BEIJING)1 citations50
UNIV CHINA PETROLEUM BEIJING
4 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
US10030188B2Jul 24, 2018
Nano-hybrid lubricant and method thereof, and oil-based drilling fluid
UNIV CHINA PETROLEUM BEIJING0 citations40
US10000684B2Jun 19, 2018
Drilling fluid additive composition, and oil-based drilling fluid and use thereof
UNIV CHINA PETROLEUM BEIJING0 citations40