Method and apparatus for firing exploding foil initiators over long firing lines
US4944225A · kind A · utility
34Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 8, 1989 |
| Grant date | Jul 31, 1990 |
| Priority date | — |
| Expiry date | Nov 8, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B3/124
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for use in well perforating systems and disclosed for firing slapper on exploding foil initiator over relatively lengthy firing lines. Specially designed detonators or initiators of the exploding foil or slapper type are used wherein the type of material used and/or the geometry of the exploding foil causes electrical preloading of the firing lines from the firing pulse generator to the detonator or initiator. The preloading prevents premature inductive and resistive disposition of the high intensity firing pulse traversing the firing lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.