Through bulkhead explosive initiator for oil well usage
US4759291A · kind A · utility
36Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1987 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Jul 6, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42D1/043
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In an exposed perforating gun assembly, contact with well fluids at high pressure and temperature is detrimental to explosives in the explosive train. This device protects such explosives and includes a cylindrical housing with a bore having an electrical feedthrough at one end, an enclosed initiator, a cooperative sleeve and cooperative sealed retainer. The detonating cord is sealed into proximity with the initiator and is held against high pressure extrusion by the sealed retainer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.