The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2023
Filed:
Sep. 30, 2020
Petrochina Company Limited, Beijing, CN;
Xiaowei Xue, Beijing, CN;
Jianguo Yao, Beijing, CN;
Zhiguo Wang, Beijing, CN;
Guofu Ren, Beijing, CN;
Xiangjun Hu, Beijing, CN;
Siwen Guo, Beijing, CN;
Minqi Zhao, Beijing, CN;
Changqing Feng, Beijing, CN;
Kai Li, Beijing, CN;
Penggang Huang, Beijing, CN;
PetroChina Company Limited, Beijing, CN;
Abstract
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.