US Patent Issued to Southwest Petroleum University on Sept. 16 for "Active energy-absorbing shock absorber for perforation combined well testing" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,224, issued on Sept. 16, was assigned to Southwest Petroleum University (Chengdu, China).

"Active energy-absorbing shock absorber for perforation combined well testing" was invented by Liangliang Ding (Chengdu, China), Kai Wang (Chengdu, China), Jialin Tian (Chengdu, China), Hongtao Liu (Chengdu, China), Yongzhi Xue (Chengdu, China), Ruifeng Guo (Chengdu, China), Hongtao Jing (Chengdu, China) and Qiang Zhang (Chengdu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An active energy-absorbing shock absorber for perforation combined well testing includes a first energy-absorbing mechanism, a second energy-absorbing mechanism and an axial-force c...