US Patent Issued to CHINA UNIVERSITY OF PETROLEUM(EAST CHINA) on July 14 for "Fracturing fluid pad fluid for optimizing size of in-situ self-generated proppant and application thereof" (Chinese Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,438, issued on July 14, was assigned to CHINA UNIVERSITY OF PETROLEUM(EAST CHINA) (Qingdao City, China).

"Fracturing fluid pad fluid for optimizing size of in-situ self-generated proppant and application thereof" was invented by Zengbao Wang (Qingdao City, China), Weian Huang (Qingdao City, China), Yuwei Gan (Qingdao City, China), Yingrui Bai (Qingdao City, China), Yongping Zhan (Qingdao City, China) and Junjie Jiang (Qingdao City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fracturing fluid pad fluid is applicable to a calcium-rich reservoir and composed of clear water, phosphate, pH regulator and Ca2+ chelator, wherein, for 100 weight p...