| Patent | Date |
|---|
High-temperature resistant, high-strength, and thixotropic gel plugging agent and its preparation method and application
Grant 11,421,140 - Bai , et al. August 23, 2 | 2022-08-23 |
Pressure-bearing plugging composition, pressure-bearing plugging slurry and preparation method and use thereof
Grant 11,396,621 - Bai , et al. July 26, 2 | 2022-07-26 |
Nano-organosilicon film-forming and hydrophobic shale surface hydration inhibitor and its preparation method and application
App 20220228050 - HUANG; Xianbin ; et al. | 2022-07-21 |
High temperature-resistant and high oil-absorption resin particle plugging agent suitable for oil-based drilling fluid and its preparation method
Grant 11,384,275 - Bai , et al. July 12, 2 | 2022-07-12 |
Environment-friendly high-temperature resistant water-based drilling fluid plugging anti-sloughing agent, preparation method thereof and the water-based drilling fluid
Grant 11,072,738 - Huang , et al. July 27, 2 | 2021-07-27 |
Temperature-resistant calcium-resistant water-based drilling fluid for oil and gas reservoir protection and use thereof
Grant 11,053,424 - Yang , et al. July 6, 2 | 2021-07-06 |
Environment-friendly High-temperature Resistant Water-based Drilling Fluid Plugging Anti-sloughing Agent, Preparation Method Thereof And The Water-based Drilling Fluid
App 20210189216 - HUANG; Xianbin ; et al. | 2021-06-24 |
High Temperature-resistant And High Oil-absorption Resin Particle Plugging Agent Suitable For Oil-based Drilling Fluid And Its Preparation Method
App 20210139764 - BAI; YINGRUI ; et al. | 2021-05-13 |
High-Temperature Resistant, High-Strength, and Thixotropic Gel Plugging Agent and Its Preparation Method and Application
App 20210087453 - BAI; YINGRUI ; et al. | 2021-03-25 |
Multi-functional weighting agent for drilling fluid and preparation method thereof, and water-based drilling fluid and use thereof
Grant 10,865,337 - Bai , et al. December 15, 2 | 2020-12-15 |
High-temperature retarder suitable for oil and gas well cementation, preparation method thereof and cementing slurry
Grant 10,858,571 - Wang , et al. December 8, 2 | 2020-12-08 |
Multi-Functional Weighting Agent for Drilling Fluid and Preparation Method Thereof, and Water-Based Drilling Fluid and Use Thereof
App 20200369936 - BAI; Yang ; et al. | 2020-11-26 |
High-temperature Retarder Suitable For Oil And Gas Well Cementation, Preparation Method Thereof And Cementing Slurry
App 20200239760 - Wang; Chengwen ; et al. | 2020-07-30 |
Temperature-resistant Calcium-resistant Water-based Drilling Fluid For Oil And Gas Reservoir Protection And Use Thereof
App 20200115613 - Yang; Yuping ; et al. | 2020-04-16 |
Strong plugging drilling fluid composition and preparation method thereof, and use thereof
Grant 10,533,122 - Bai , et al. Ja | 2020-01-14 |
Expandable plugging agent and preparation method thereof, micro-capsule plugging agent, water-based drilling fluid, and use thereof
Grant 10,487,255 - Bai , et al. Nov | 2019-11-26 |
Water-based drilling fluid for protecting fractured reservoirs, and preparation method and use thereof
Grant 10,392,552 - Sun , et al. A | 2019-08-27 |
Use of dual-cation fluorocarbon surfactant as amphiphobic wettability reversal agent in drilling fluid
Grant 10,336,931 - Jiang , et al. | 2019-07-02 |
Micro-nano composite plugging agent for drilling fluid and preparation method thereof, and drilling fluid and use thereof
Grant 10,336,932 - Bai , et al. | 2019-07-02 |
Super-amphiphobic composite material and use of the same as inhibitor, lubricant, reservoir protectant, and accelerator in water-based drilling fluids
Grant 10,308,857 - Jiang , et al. | 2019-06-04 |
Water-based drilling fluid for protecting high-permeability reservoirs, and preparation method and use thereof
Grant 10,040,984 - Lv , et al. August 7, 2 | 2018-08-07 |
Water-based Drilling Fluid For Protecting High-permeability Reservoirs, And Preparation Method And Use Thereof
App 20180208824 - LV; Kaihe ; et al. | 2018-07-26 |
Water-based Drilling Fluid For Protecting Fractured Reservoirs, And Preparation Method And Use Thereof
App 20180208823 - SUN; Jinsheng ; et al. | 2018-07-26 |
Use Of Dual-cation Fluorocarbon Surfactant As Amphiphobic Wettability Reversal Agent In Drilling Fluid
App 20180201821 - JIANG; Guancheng ; et al. | 2018-07-19 |
Reservoir Protecting Agent Composition For Reservoir With Cracks, Drilling Fluid Containing The Same And Use Thereof
App 20180118993 - LV; Kaihe ; et al. | 2018-05-03 |
Polymer elastic particle reservoir protecting agent and drilling fluid containing the same
Grant 9,771,509 - Lv , et al. September 26, 2 | 2017-09-26 |
Nanometer film structured reservoir protecting agent, drilling fluid containing the same and use thereof in low-permeability reservoirs
Grant 9,701,884 - Sun , et al. July 11, 2 | 2017-07-11 |
Composition comprising a nanometer film structured reservoir protecting agent and a water block preventing agent, and drilling fluid containing the same and use thereof for drilling in low-permeability reservoirs
Grant 9,683,160 - Sun , et al. June 20, 2 | 2017-06-20 |
Preparation method of a wettability reversal agent
Grant 9,296,936 - Jiang , et al. March 29, 2 | 2016-03-29 |
Reservoir protecting agent composition and broad-spectrum drilling liquid and use thereof
Grant 9,279,076 - Jiang , et al. March 8, 2 | 2016-03-08 |
Protecting agent composition for high/ultra-high permeability reservoirs and drilling fluid and use thereof
Grant 9,267,068 - Jiang , et al. February 23, 2 | 2016-02-23 |
| 