US Patent Issued to Yangtze University on Sept. 16 for "Silicate water-based drilling fluid for coalbed methane wells and application thereof" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,945, issued on Sept. 16, was assigned to Yangtze University (Jingzhou, China).

"Silicate water-based drilling fluid for coalbed methane wells and application thereof" was invented by Yu Wu (Jingzhou, China) and Chaowu Ni (Jingzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A silicate water-based drilling fluid for coalbed methane wells and an application are provided. In terms of parts by weights, raw materials of the silicate water-based drilling fluid comprise: 100 parts of water, 1-3 parts of bentonite, 1-5 parts of pH regulator, 3-5 parts of silicate, 2-4 parts of silicate stabilizer, 0.1-0.15 parts of tackifier, 2-4 parts of filtrat...