Chenggang Zheng

Title: Chenggang Zheng: Innovator in Cationic Copolymers

Introduction

Chenggang Zheng is a notable inventor based in Beijing, China. He has made significant contributions to the field of chemical engineering, particularly in the development of cationic copolymers. His innovative work has led to advancements in lost circulation additives used in oil well construction.

Latest Patents

Chenggang Zheng holds a patent for a cationic copolymer and its use as a lost circulation additive. The patent describes a cationic copolymer represented by a specific formula, which has a viscosity average molecular weight ranging from 2 million to 10 million. The copolymer consists of three structural units corresponding to three monomers, with specific mole fractions that enhance its effectiveness. When utilized in oil well construction, this copolymer, when mixed with an anionic drilling fluid, undergoes neutral and cross-linking reactions. This process results in a rapid increase in viscosity, forming a space grid structure that effectively blocks leakage paths, thereby facilitating efficient leaking stoppage in a short time frame.

Career Highlights

Chenggang Zheng has worked with prominent organizations, including China Petroleum & Chemical Corporation and the China Petroleum & Chemical Corporation Exploration & Production Research Institute. His experience in these companies has allowed him to apply his innovative ideas in practical settings, contributing to the advancement of oil drilling technologies.

Collaborations

Chenggang Zheng has collaborated with esteemed colleagues such as Changming Su and Mengyun Zhao. Their joint efforts have furthered research and development in the field of chemical additives for oil drilling.

Conclusion

Chenggang Zheng's contributions to the field of cationic copolymers and lost circulation additives have made a significant impact on oil well construction. His innovative patent showcases the potential for improved efficiency in drilling operations.