Modular time delay for actuating wellbore devices and methods for using same
US7721650B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2008 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Apr 3, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B3/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for controlling a wellbore energy train may include a firing head, a detonator cord associated with the firing head, and a plurality of serially aligned modules. Each module may include an enclosure, a first portion of a high order detonation material positioned at one end of the enclosure, a second portion of the high order detonation material positioned at the other end of the enclosure, and a low order detonation material interposed between the first portion and the second portion. A method for controlling an energy train generated in a wellbore may include serially aligning a plurality of the modules along the path of the energy train, and detonating at least one of the plurality of modules by detonating a detonator cord.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.