US Patent Issued to CHINA PETROLEUM & CHEMICAL, SINOPEC PETROLEUM ENGINEERING TECHNOLOGY SERVICE, SINOPEC SHENGLI PETROLEUM ENGINEERING, SINOPEC MATRIX, GEOSTEERING & LOGGING RESEARCH INSTITUTE SINOPEC MATRIX on March 18 for "Steerable drilling device" (Chinese Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,986, issued on March 18, was assigned to CHINA PETROLEUM & CHEMICAL Corp. (Beijing), SINOPEC PETROLEUM ENGINEERING TECHNOLOGY SERVICE Co. LTD (Beijing), SINOPEC SHENGLI PETROLEUM ENGINEERING Co. LTD (Shandong, China), SINOPEC MATRIX Corp. (Shandong, China) and GEOSTEERING & LOGGING RESEARCH INSTITUTE SINOPEC MATRIX Corp. (Shandong, China).

"Steerable drilling device" was invented by Qingming Ma (Shandong, China), Jieran Zhu (Shandong, China), Ningning Yang (Shandong, China), Guangquan Li (Shandong, China), Yufeng Li (Shandong, China), Nan Lin (Shandong, China), Haiquan Tang (Shandong, China), Haiyang Du (Shandong, China) and Chao Lu (Shandong, China).

According to the abstract* ...