Petrochina Company Limited

Siwen Guo

Kai Lin Li

Jianguo Yao

Xiangjun Hu

Guofu Ren

Zhiguo Wang

Xiaowei Xue

Minqi Zhao

Changqing Feng

Penggang Huang

Kai Li

A metal-based dissolvable ball seat comprises a mandrel, a tail base, a sliding body, a slip and a sealing ring. The mandrel can be disengaged from the tail base under predefined shearing force. The sliding body is disposed to sleeve the mandrel and located above the tail base; the slip is disposed outside the mandrel and slidably abutted against the tail base and the sliding body respectively; the slip and the sliding body are slidably abutted against each other through a first conical surface structure, and/or the slip and the tail base are slidably abutted against each other through a second conical surface structure; the sealing ring is movable along axial direction of the mandrel together with the slip; when the sliding body and the tail base are approaching each other, the slip opens up and the sealing ring expands outward. A setting system and a setting method are provided.

Metal-based dissolvable ball seat, setting system and setting method

Growing community of inventors

Beijing, China

Siwen Guo