China Oilfield Services, Limited

China National Offshore Oil Corporation

Shusheng Guo

Yongren Feng

Lin Huang

Tiemin Liu

Zhibin Tian

Zanqing Wei

Xingfang Wu

Yong Jiang

Peng Sun

Bin Gao

Shiwei Zong

Aijun Zhang

Jianyong Zhang

Xiaodong Chu

Tao Lu

Yongzeng Xue

Yongchao Chen

Yang Shen

Guoqiang Zhang

Kun Xu

Xinhuo Weng

Suogui Shang

Ya Jin

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 spacer insertion device is disclosed. The spacer insertion device comprises a spacer insertion mechanism fixed on a base body of a core detection device of a coring instrument, wherein the spacer insertion mechanism comprises a slider and a cylinder body, an output end of the cylinder body is connected with the slider, and the slider is slidably connected with the base body to push a spacer to the a core channel provided in the base body and in communication with a core barrel.

Core detection device of coring instrument and spacer insertion device

A core detection device of a coring instrument includes a base body and a core switch mechanism provided on the base body. The base body is provided with a core channel communicated with a core barrel. The core switch mechanism includes a detection portion, a connecting rod assembly and a travel switch which are sequentially arranged and connected along a length direction of the coring instrument. The detection portion is rotatably installed on the base body and one end thereof is extended into the core channel, so that a core passing through the core channel pushes the detection portion to rotate. The connecting rod assembly can be pulled by the rotating detection portion to trigger the travel switch to operate. The core switch mechanism adopts a slider-connecting rod structure, and the kinematic pairs are mainly a sliding pair and a rotating pair.

Core detection device of coring instrument

Growing community of inventors

Hebei, China

Shusheng Guo