Downhole automatic tool release and method of use
US7353871B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2005 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Jul 8, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/1193
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A release tool adapted to be connected between a perforating gun and a tubing for releasing the perforating gun from the tubing after detonation of the perforating gun, the tool including a housing in connection with the tubing, the housing having an axial bore; an axially shiftable member in connection between the housing and a perforating gun; a seal member positioned in the axial bore of the housing, the axially shiftable member positioned through the seal member; a frangible member maintaining the axially shiftable member in connection between the housing and the perforating gun until the frangible member is shatter disconnecting the shiftable member; and a mechanism for equalizing the pressure across the seal member after the axially shiftable member is disconnected allowing the perforating gun to separate from the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.