China Petroleum Chemical Corporation

Sinopec Petroleum Engineering Technology Research Institute Co., Ltd.

Baoping Lu

Xiaodan Liu

Haiping Zhang

Yanbin Zang

Jiachang Wang

Renlong Zhang

Lishuang Wang

Lingchao Xuan

Xinghua Tao

Mingguang Sun

A drilling tool includes an outer cylinder; a power rotary shaft arranged in an inner chamber of the outer cylinder; a percussion generator arranged below the power rotary shaft, having a transmission shaft extending in the outer cylinder and can be driven by the power rotary shaft to rotate around its axis, an output main shaft engaged with a lower end of the transmission shaft so as to be driven by the transmission shaft to rotate about its axis and is movable relative to the transmission shaft along an axial direction, and an percussion assembly The percussion assembly is arranged between an annulus formed between the upper end of the output main shaft and the outer cylinder and can generate reciprocating impact along the axial direction on the output main shaft. A drilling bit connected with the output main shaft extending out of the inner chamber of the outer cylinder.

Drilling tool

Growing community of inventors

Beijing, China

Baoping Lu