US Patent Issued to NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY on May 5 for "Joint assembly, production well manufacturing method, and gas production method" (Japanese Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,301, issued on May 5, was assigned to NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Tokyo).

"Joint assembly, production well manufacturing method, and gas production method" was invented by Jun Yoneda (Sapporo, Japan), Yusuke Jin (Sapporo, Japan), Koji Yamada (Sapporo, Japan), Hideki Minagawa (Sapporo, Japan) and Kazunori Shinjo (Sapporo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A joint assembly that selectively isolates an isolation target layer in an open hole drilled in the strata including a hydrocarbon-bearing reservoir and the isolation target layer, and is a production well manufacturing method and gas production...