US Patent Issued to Institute of Geomechanics, Chinese Academy of Geological Sciences on Aug. 5 for "Method and device for determining fracture closure pressure based on hydraulic fracturing" (Chinese Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,863, issued on Aug. 5, was assigned to Institute of Geomechanics, Chinese Academy of Geological Sciences (Beijing).

"Method and device for determining fracture closure pressure based on hydraulic fracturing" was invented by Yuehui Yang (Beijing), Dongsheng Sun (Beijing), Qunce Chen (Beijing), Awei Li (Beijing) and Bangchen Wu (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and a device for determining fracture closure pressure based on hydraulic fracturing are provided. The method includes: determining a leak-off volume of a fluid during a refrac cycle according to a fluid pressure during the refrac cycle; generating a stiffness chan...