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US 4,428,292 AGranted
High temperature exploding bridge wire detonator and explosive composition
AssigneeHalliburton Company
InventorRobert A. Riggs
Life of this patent
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Abstract
A chemically and thermally stable explosive composition comprising hexanitrostilbene, a perhalogenate oxidizing agent, a sensitizing metal and a source of copper ions. The explosive composition is thermally stable up to a temperature of about 550.degree. F. and can be initiated by an exploding bridge wire or an electrostatic discharge of sufficient energy.
Claims20
An explosive composition capable of initiation by an exploding bridge wire comprising:
- from about 25 percent to about 50 percent by weight of hexanitrostilbene;
- from about 40 percent to about 70 percent by weight of a perhalogenate oxidizing agent;
- from about 1.5 percent to about 6 percent by weight of a sensitizing metal, and
- from about 0.0006 percent to about 20 percent by weight of copper ions provided by a suitable copper compound source.
1 more element
An electrical detonator comprising:
- an electrically insulated container;
- an explodable bridge wire positioned within said container and connected to a pair of electrically conductive wires which penetrate said container to provide a means of introducing an electrical charge into said bridge wire, and
- an explosive composition contained within said container comprising from about 25 percent to about 50 percent by weight of hexanitrostilbene, from about 40 percent to about 70 percent by weight of a perhalogenate oxidizing agent from about 1.5 percent to about 6 percent by weight of a sensitizing metal, and from about 0.0006 percent to about 20 percent by weight of copper ions.
Dependencies are inferred from the claim text.