China Petroleum Chemical Corporation

Sinopec Petroleum Engineering Technology Service Co., Ltd.

Sinopec Shengli Petroleum Engineering Co., Ltd

Geosteering & Logging Research Institute, Sinopec Matrix Corporation

Sinopec Matrix Corporation

Jieran Zhu

Qingming Ma

Ningning Yang

Haiyang Du

Guangquan Li

Haiquan Tang

Yufeng Li

Nan Lin

Chao Lu

A steerable drilling device has an outer tube extending along a longitudinal axis; a drill bit joint inserted into said outer tube, a lower end of said drill bit joint extending out of a lower end of said outer tube for connection to a drill bit; a joint drive mechanism, provided in said outer tube and configured to drive said drill bit joint to swing relative to the longitudinal axis; and a lower connection mechanism. The lower connection mechanism has a connection body connected to said joint drive mechanism in such a manner that said joint drive mechanism is non-rotatable with respect to said connection body, a first centralizer arranged between said connection body and said outer tube, a circuit system arranged in said connection body and configured to provide an electrical signal to said joint driving mechanism, and an attitude sensor arranged in said connection body.

Steerable drilling device

Growing community of inventors

Shandong, China

Jieran Zhu