Cheng Xian

Title: Cheng Xian: Innovator in Surfactant Technology

Introduction

Cheng Xian is a notable inventor based in Beijing, China. He has made significant contributions to the field of surfactant technology, particularly in enhancing the wettability of tight sandstone. His innovative approach has implications for improving oil recovery in low-permeability reservoirs.

Latest Patents

Cheng Xian holds a patent for a surfactant that changes the wettability of tight sandstone and its preparation method and application. The patent describes a process where an aqueous phase solution is added to an oil phase solution. Under the action of an emulsifier, a uniformly dispersed phase is achieved. An initiator is then added, followed by stirring and raising the temperature to react and obtain a colorless and transparent liquid, which is a high polymer. At room temperature, a fluorocarbon surfactant and biosurfactant are added, and stirring continues for four hours to produce the surfactant. This surfactant effectively reduces oil-water interfacial tension, transforming oil-wet surfaces into water-wet surfaces, thereby improving the flowability of crude oil in the original stratum.

Career Highlights

Cheng Xian is currently employed at PetroChina Company Limited, where he applies his expertise in surfactant technology. His work focuses on enhancing oil recovery methods, which are crucial for the energy sector. His innovative solutions have the potential to significantly impact the efficiency of oil extraction processes.

Collaborations

Cheng has collaborated with notable colleagues, including Gang Guo and Zhongxing Li. Their combined efforts in research and development have contributed to advancements in surfactant applications in the oil industry.

Conclusion

Cheng Xian's contributions to surfactant technology demonstrate his commitment to innovation in the energy sector. His patented surfactant not only enhances oil recovery but also showcases the potential for further advancements in this field.