US Patent Issued to China University of Petroleum, China shi da Education Development on Sept. 23 for "Dual-purpose sacrificial anti-swelling agent, preparation method and application thereof" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,439, issued on Sept. 23, was assigned to China University of Petroleum (Dongying, China) and China shi da Education Development Co. Ltd (Qingdao, China).

"Dual-purpose sacrificial anti-swelling agent, preparation method and application thereof" was invented by Binglin Li (Shandong, China), Yuliang Su (Shandong, China), Binfei Li (Shandong, China), Chao Zhang (Shandong, China) and Qichao Lv (Shandong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dual-purpose sacrificial anti-swelling agent, and a preparation method and application thereof are provided and relate to the technical field of oil reservoir exploitation. The dual-purpose sacrifi...