Metal-based dissolvable ball seat, setting system and setting method
US11634961B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2020 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Feb 16, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.