China National Petroleum Corporation

Cnpc Engineering Technology R&d Company Limited

Yifeng Fan

Lei Wang

Peng Wang

Xianwei Guo

Zhigang Wei

Jiajin Wang

Hengtian Jia

Weiping Ai

Xiurong Dou

Weimin Mao

The present disclosure discloses a mud pressure wave signal modulation apparatus and method, which relate to the technical field of petroleum drilling engineering. The apparatus includes: a motor (), a valve plate (), a main control circuit (), a motor drive control circuit, and a downhole communication circuit; the valve plate () is driven by the motor () to be rotated around an axial direction perpendicular to a flow direction of drilling fluid; the motor () and the valve plate () are disposed in a drilling fluid channel (), and the drilling fluid channel (), the motor (), the valve plate (), the main control circuit (), the motor drive control circuit and the downhole communication circuit are disposed in a drill collar.

Mud pressure wave signal modulation apparatus and method

Growing community of inventors

Beijing, China

Yifeng Fan