Anti-preset for packers
US11142990B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2020 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Apr 3, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1295
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed herein are embodiments of a packer assembly and a well system. In one embodiment, a packer assembly includes an inner mandrel; a packing element at least partially surrounding the inner mandrel; a packing element activation sleeve coupled to the packing element; a hydrostatic setting assembly engageable with the packing element activation sleeve; and a hydraulic setting assembly positioned between the packing element and the hydrostatic setting assembly. The hydrostatic setting assembly includes a hydrostatic piston; a hydrostatic prop piston engageable to push the hydrostatic piston to engage the packing element activation sleeve; and a hydrostatic locking mechanism to maintain the hydrostatic piston in a locked position. The hydraulic setting assembly includes a hydraulic piston; a hydraulic locking mechanism coupled to the hydraulic piston; and a hydraulic prop piston engageable with the hydraulic locking mechanism and operable to move the hydraulic locking mechanism between locked and unlocked position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.