High energy firing head for well perforating guns
Patent
·
OSTI ID:6825473
A method is described of firing a well perforating gun in a well environment of about 400/sup 0/F. The gun contains charges formed of thermal resistant explosive material, comprising the steps of: running a primer cord of thermal resistant explosive material adjacent the detonating ends of the thermal resistant shaped charges; disposing a downwardly directed shaped charge formed of thermal resistant explosive material immediately above the top end of the primer cord; mounting an impact detonatable flyer plate primer immediately above the downwardly directed shaped charge; and detonating the primer to fire the downwardly directed shaped charge by the flyer plate. A perforating gun is described for high-temperature wells comprising carrier means for supporting radially directed shaped charges in vertically spaced relation. A primer cord passes upwardly adjacent the detonating end of all the shaped charges; a downwardly directed shaped charge positioned immediately above the top end of the primer cord, all of the shaped charges and the primer cord being formed of thermally resistant explosive material. And an impact detonatable, flying plate primer is positioned immediately above and adjacent to the downwardly directed shaped charge, whereby the detonation of the primer detonates the downwardly directed shaped charge and the primer cord at a high level of detonating energy to assure the detonation of the radially directed shaped charges.
- Assignee:
- Baker Oil Tools, Inc., Orange, CA
- Patent Number(s):
- US 4658900
- OSTI ID:
- 6825473
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
DETONATIONS
EXPLOSIVES
GUNS
HIGH TEMPERATURE
NATURAL GAS WELLS
OIL WELLS
PERFORATION
PHYSICAL PROPERTIES
SPACE DEPENDENCE
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
WELLS
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
DETONATIONS
EXPLOSIVES
GUNS
HIGH TEMPERATURE
NATURAL GAS WELLS
OIL WELLS
PERFORATION
PHYSICAL PROPERTIES
SPACE DEPENDENCE
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
WELLS