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US 9,091,163 B2Granted
Insensitive explosive composition and method of fracturing rock using an extrudable form of the composition
AssigneeLos Alamos National Security, LLC
InventorLloyd L. Davis
Life of this patent
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Abstract
Insensitive explosive compositions were prepared by reacting di-isocyanate and/or poly-isocyanate monomers with an explosive diamine monomer. Prior to a final cure, the compositions are extrudable. The di-isocyanate monomers tend to produce tough, rubbery materials while polyfunctional monomers (i.e. having more than two isocyanate groups) tend to form rigid products. The extrudable form of the composition may be used in a variety of applications including rock fracturing.
Claims9
A method for extending a fracture network in rock, comprising:
- inserting an extrudable insensitive explosive composition into fissures in rock, the composition comprising an insensitive explosive reaction product of a reaction between an explosive diamine monomer and a monomer selected from an alkyl di-isocyanate monomer, an aryl di-isocyanate monomer, an alkyl poly-isocyanate monomer, an aryl poly-isocyanate monomer, or mixtures thereof, and thereafter
- detonating the composition, thereby extending the fracture network in the rock.
Dependencies are inferred from the claim text.