This inventor holds 1 USPTO granted patent. Top assignees: Beijing Huamei Inc., Cnpc USA Corporation. Active years: 2020.
Company Filing History:
1 out of 53 
1 out of 100 
Years Active: 2020
Title: Yonggui Liu - Innovator in Shale Inhibitors
Introduction
Yonggui Liu is a notable inventor based in Daqing, China. He has made significant contributions to the field of drilling fluids, particularly with his innovative work on shale inhibitors. His inventions aim to enhance the performance of water-based drilling fluids in shale formations.
Latest Patents
Yonggui Liu holds 1 patent for his invention titled "Shale inhibitors used in the water-based fluid for shale formation." This patent describes a shale inhibitor designed to improve the application of water-based drilling fluid in shale formation rock. One embodiment of the shale inhibitor is the reaction product of an amine, such as triethanolamine, and epichlorohydrin in a water solution. Another embodiment involves the reaction product of triethanolamine, epichlorohydrin, and hypophosphorous acid. This invention is highly effective and demonstrates better performance than most commercial products in preventing the disintegration and swelling of shale formations.
Career Highlights
Throughout his career, Yonggui Liu has worked with prominent companies in the industry, including CNPC USA Corporation and Beijing Huamei Inc. His expertise in the field has allowed him to develop innovative solutions that address critical challenges in drilling operations.
Collaborations
Yonggui Liu has collaborated with several professionals in his field, including Chun Zhou and Fuchen Craig Liu. These collaborations have contributed to the advancement of technology in shale drilling and fluid applications.
Conclusion
Yonggui Liu's contributions to the development of shale inhibitors have made a significant impact on the drilling industry. His innovative solutions continue to enhance the effectiveness of water-based drilling fluids in shale formations.