Chengdu
China
20
2023-01-03
The entities that hold a legal rights for patent applications filed by inventor LUO Pingya:
Pingya LUO from Chengdu, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
Leak-proof lost-circulation control water-based drilling fluid composition and preparation method and use thereof
#2 | 2022-12-13Preparation method of fully adaptive modified nanographene plugging type anti-collapse drilling fluid and use thereof
#3 | 2022-09-15Oil-based drilling fluid composition, oil-based drilling fluid and preparation method and use thereof
#4 | 2022-08-25Pressure-bearing plugging agent and preparation method and use thereof
#5 | 2022-07-26Pressure-bearing plugging composition, pressure-bearing plugging slurry and preparation method and use thereof
#6 | 2022-05-31Fiber silica composite microsphere for shale stratum, drilling fluid and preparation method and use thereof
#7 | 2022-01-18Drilling fluid for enhancing stratum pressure bearing capacity and preparation method and method of using thereof
#8 | 2021-06-03Nanometer plugging water-based drilling fluid and preparation method and use thereof
#9 | 2020-11-26Multi-functional weighting agent for drilling fluid and preparation method thereof, and water-based drilling fluid and use thereof
#10 | 2020-11-10Micro-nanometer plugging anti-collapse drilling fluid and preparation method and use thereof
#11 | 2020-11-10Modified nano-silica plugging agent, water-based drilling fluid, and preparation method and use thereof
#12 | 2020-07-09Experimental device and experimental method for testing the lubricity in horizontal well drilling with a cuttings bed taken into consideration
#13 | 2019-11-26Expandable plugging agent and preparation method thereof, micro-capsule plugging agent, water-based drilling fluid, and use thereof
#14 | 2019-08-08Strong plugging drilling fluid suitable for shale gas wells and preparation method thereof
#15 | 2019-07-02Micro-nano composite plugging agent for drilling fluid and preparation method thereof, and drilling fluid and use thereof
#16 | 2019-03-19Gel plugging slurry for well drilling and preparation method thereof, and slug plugging method
#17 | 2019-03-19Drilling fluid for inhibiting surface hydration of clay and preparation method thereof
#18 | 2018-07-10Plugging agent for improving formation bearing capacity and preparation method thereof
#19 | 2018-06-26High-temperature cross-linking deep-well drilling fluid and preparation method thereof
#20 | 2018-03-27Deep-well polysulfonate drilling fluid and preparation method thereof
2579971 ⎘