Inventor
HAN LIEXIANG
CN11 patents
⚠️ This page may combine multiple inventors who share the name “HAN LIEXIANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHINA UNIV OF PETROLEUM (BEIJING)
4 patentsUS9783725B1Oct 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 patentsUS10266744B2Apr 23, 2019
Accelerator used for drilling fluids, water-based drilling fluid and usage thereof
UNIV CHINA PETROLEUM BEIJING0 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
US10253237B1Apr 9, 2019
Film former used for coal-bed gas well drilling and preparation method thereof, drilling fluid and usage thereof
UNIV CHINA PETROLEUM BEIJING0 citations39