Inventor
LUO PINGYA
CN22 patents
Patents
22 patentsUS10829681B1Nov 10, 2020
Modified nano-silica plugging agent, water-based drilling fluid, and preparation method and use thereof
UNIV SOUTHWEST PETROLEUM24 citations94
US10829679B1Nov 10, 2020
Micro-nanometer plugging anti-collapse drilling fluid and preparation method and use thereof
UNIV SOUTHWEST PETROLEUM17 citations86
US10487255B1Nov 26, 2019
Expandable plugging agent and preparation method thereof, micro-capsule plugging agent, water-based drilling fluid, and use thereof
UNIV SOUTHWEST PETROLEUM9 citations83
US10233377B1Mar 19, 2019
Gel plugging slurry for well drilling and preparation method thereof, and slug plugging method
UNIV SOUTHWEST PETROLEUM7 citations82
US9926482B1Mar 27, 2018
Deep-well polysulfonate drilling fluid and preparation method thereof
UNIV SOUTHWEST PETROLEUM12 citations82
US10017679B1Jul 10, 2018
Plugging agent for improving formation bearing capacity and preparation method thereof
UNIV SOUTHWEST PETROLEUM14 citations79
US11225594B1Jan 18, 2022
Drilling fluid for enhancing stratum pressure bearing capacity and preparation method and method of using thereof
UNIV SOUTHWEST PETROLEUM6 citations74
US10989576B1Apr 27, 2021
Method and system for obtaining micro-nano level fracture model and evaluating plugging performance of drilling fluid
UNIV SOUTHWEST PETROLEUM5 citations73
US10233375B1Mar 19, 2019
Drilling fluid for inhibiting surface hydration of clay and preparation method thereof
UNIV SOUTHWEST PETROLEUM2 citations73
US11525079B1Dec 13, 2022
Preparation method of fully adaptive modified nanographene plugging type anti-collapse drilling fluid and use thereof
UNIV SOUTHWEST PETROLEUM2 citations72
US11453814B2Sep 27, 2022
Pressure-bearing plugging agent and preparation method and use thereof
UNIV SOUTHWEST PETROLEUM2 citations72
US10336932B1Jul 2, 2019
Micro-nano composite plugging agent for drilling fluid and preparation method thereof, and drilling fluid and use thereof
UNIV SOUTHWEST PETROLEUM4 citations72
US11396621B1Jul 26, 2022
Pressure-bearing plugging composition, pressure-bearing plugging slurry and preparation method and use thereof
UNIV SOUTHWEST PETROLEUM3 citations71
US10005946B1Jun 26, 2018
High-temperature cross-linking deep-well drilling fluid and preparation method thereof
UNIV SOUTHWEST PETROLEUM5 citations71
US10928300B2Feb 23, 2021
Experimental device and experimental method for testing the lubricity in horizontal well drilling with a cuttings bed taken into consideration
UNIV SOUTHWEST PETROLEUM2 citations68
US11162010B2Nov 2, 2021
Nanometer plugging water-based drilling fluid and preparation method and use thereof
UNIV SOUTHWEST PETROLEUM1 citations62
US11542425B1Jan 3, 2023
Leak-proof lost-circulation control water-based drilling fluid composition and preparation method and use thereof
UNIV SOUTHWEST PETROLEUM0 citations61
US11345841B1May 31, 2022
Fiber silica composite microsphere for shale stratum, drilling fluid and preparation method and use thereof
UNIV SOUTHWEST PETROLEUM0 citations59
US11441062B1Sep 13, 2022
Modified polyvinyl acetate and preparation method and use thereof and oil-based drilling fluid
UNIV SOUTHWEST PETROLEUM0 citations57
US10865337B1Dec 15, 2020
Multi-functional weighting agent for drilling fluid and preparation method thereof, and water-based drilling fluid and use thereof
UNIV SOUTHWEST PETROLEUM0 citations52
US11485896B2Nov 1, 2022
Oil-based drilling fluid composition, oil-based drilling fluid and preparation method and use thereof
UNIV SOUTHWEST PETROLEUM0 citations50
US10407608B2Sep 10, 2019
Strong plugging drilling fluid suitable for shale gas wells and preparation method thereof
UNIV SOUTHWEST PETROLEUM0 citations42