China Oilfield Services, Limited

China National Offshore Oil Corporation

Guoqiang Zhang

Yongren Feng

Tiemin Liu

Xiaodong Chu

Zhibin Tian

Lin Huang

Xingfang Wu

Tao Lu

Jibin Zou

Yongzeng Xue

Shusheng Guo

Zhongtian Hao

Yongchao Chen

Yang Shen

Kun Xu

Xinhuo Weng

Suogui Shang

Guangshuai Li

Ya Jin

Yiming Wu

A coring and sampling integrated sub, including an integrally formed base body, a probe module, a coring module and a hydraulic module. The probe module, the coring module and the hydraulic module are all mounted on the base body. The hydraulic module, the probe module and the coring module are sequentially arranged from top to bottom. An output end of the hydraulic module is configured to be connected to the probe module and the coring module, respectively. The hydraulic module is configured to provide telescopic power for the probe module, and provide power for movement, flipping, and pushing of the coring module. Also disclosed is a downhole instrument including the coring and sampling integrated sub.

Coring and sampling integrated sub and downhole instrument

A horizontal-to-vertical drilling module for a deep well includes a fixed plate () provided with a first guide hole having a turning section (), a core breaking section () and a moving section (); a movable plate () movably mounted on one side of the fixed plate and provided with a second guide hole having a turning driving section (), a core breaking driving section () and a moving driving section (), the projection of the first guide hole on the movable plate intersecting with the second guide hole; a coring module () positioned at the other side of the fixed plate and provided with a moving column () on the side facing the fixed plate; and a moving slider () having an open groove (), the moving slider being installed in the first guide hole and rotatably connected to the coring module.

Horizontal-to-vertical drilling module for deep well

Growing community of inventors

Langfang, China

Guoqiang Zhang