US Patent Issued to Southwest Petroleum University on Sept. 22 for "Method for evaluating rock compressive strength based on cuttings mineral composition, nano-indentation, and friction tests" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,742,713, issued on Sept. 22, was assigned to Southwest Petroleum University (Chengdu, China).

"Method for evaluating rock compressive strength based on cuttings mineral composition, nano-indentation, and friction tests" was invented by Qiangui Zhang (Jintang, China), Xiangyu Fan (Chengdu, China), Cheng Meng (Ziyang, China), Hongxi Li (Chengdu, China), Tianshou Ma (Chengdu, China), Zhilin Li (Deyang, China), Pengfei Zhao (Chengdu, China), Zhuzheng Li (Pengzhou, China), Lichun Jia (Pengzhou, China) and Yufei Chen (Chengdu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application discloses a method for evaluating rock compressive stren...