Tubing conveyed perforating gun electrical detonator
US4574892A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1984 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Oct 24, 2004 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/11855
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
For use with a tubing conveyed perforating gun assembly, a wireline manipulated electrically actuated detonator assembly traversing the interior of the tubing is described. In the preferred and illustrated embodiment, a wireline connected with a sinker bar supports the detonator assembly having a sinker bar sub terminating in a taper adjacent to a set of deflectable collet fingers comprising a latch assembly. The collet fingers are deflected outwardly by the tapered surface and are forced into an undercut located above a booster and detonating cord affixed to the tubing conveyed perforating gun assembly for firing the perforating guns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.