ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,860, issued on March 25, was assigned to SOUTHWEST PETROLEUM UNIVERSITY (Chengdu, China).

"Method for predicting amount of water-sealed gas in high-sulfur water-bearing gas reservoir" was invented by Xiaohua Tan (Chengdu, China), Jiajia Shi (Chengdu, China), Heng Xiao (Chengdu, China), Yilong Li (Chengdu, China), Honglin Lu (Chengdu, China), Jin Fang (Chengdu, China), Xian Peng (Chengdu, China), Desheng Jiang (Chengdu, China), Qian Li (Chengdu, China), Dong Hui (Chengdu, China), Qilin Liu (Chengdu, China), Tao Li (Chengdu, China), Hang Zhang (Chengdu, China), Lu Liu (Chengdu, China), Shilin Huang (Chengdu, China), Haoran Hu (Chengdu, China), Yuchuan Zhu (Chengdu, China), Guowei Z...