XIONG Yan1, WANG Qing1, WU Jia-Yi1, FANG Shen-Wen1, SHI Peng1, LIU Shuai1, LIU Yi2
1. School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China; 2. Guanghan Drilling and Production Equipment Factory of BOMCO, Guanghan 618300, China