US Patent Issued to CHINA PETROLEUM & CHEMICAL on Nov. 4 for "Composition, preparation method for and application of composition, and self-healing method for well cementing in oil/gas field" (Chinese Inventors)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,121, issued on Nov. 4, was assigned to CHINA PETROLEUM & CHEMICAL Corp. (Beijing).

"Composition, preparation method for and application of composition, and self-healing method for well cementing in oil/gas field" was invented by Hongwen Liang (Beijing), Gewei Peng (Beijing), Hailiang Zhang (Xiangtan, China), Xiaojun Mo (Beijing), Fan Yang (Beijing), Junhua Zhang (Beijing), Xu Wang (Beijing), Qichun Wang (Beijing) and Min Zeng (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described are a self-healing composition, and a preparation method for and an application of the composition. The composition is of a core-shell structure; the core contain...