Tubing actuated retrievable packer
US4610300A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1984 |
| Grant date | Sep 9, 1986 |
| Priority date | — |
| Expiry date | Sep 14, 2004 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1292
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A packer apparatus for use in a subterranean well comprises an inner mandrel and means for applying tension to the inner mandrel to set radially expandable slips and packing elements. The mandrel can be releasably positioned in a first position to secure the slips and packing element in the retracted position and can be shifted to a second position in which engagable lock segments secure the slips and packing element in expanded configuration. The packer can be released by rotational manipulation or by axial force. The packer apparatus can be used with rotationally manipulatable well tools positioned either above or below the packer apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.