US Patent Issued to Xiaoyue Wan on May 20 for "Short-radius trajectory-controllable drilling tool and combined type steerable drilling tool" (Chinese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,512, issued on May 20, was assigned to Xiaoyue Wan (Beijing).

"Short-radius trajectory-controllable drilling tool and combined type steerable drilling tool" was invented by Zichen Xu (Beijing), Zhonghua Yang (Beijing) and Xiaoyue Wan (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A short-radius trajectory-controllable drilling tool and a combined type steerable drilling tool, including a drill bit and a controllable flexible WOB and torque transmission drilling string. The controllable flexible WOB and torque transmission drilling string includes a deflecting lever and a plurality of load-bearing joints. A lower end of the deflecting lever ...