US Patent Issued to CHONGQING UNIVERSITY on Sept. 15 for "Method of staged refracturing for fractured well" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,967, issued on Sept. 15, was assigned to CHONGQING UNIVERSITY (Chongqing, China).

"Method of staged refracturing for fractured well" was invented by Hanyi Wang (Chongqing, China) and Xiangyue Wei (Chongqing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "This application belongs to the technical field of oil and gas exploitation and provides a method of staged refracturing for a fractured well. The method includes re-perforating a target wellbore to form a new perforation where a position of the new perforation is different from a position of an old perforation of the wellbore. A fracturing fluid is injected into a first fracturing stage of t...