Method of forming in place a gelled suspension explosive

Patent · Tue Jul 11 04:00:00 EDT 1972

OSTI ID:6024771

Klima, F J; Duncan, J D

A method is described of forming in place a stable, gelled suspension explosive composition by pumping into a hole an aqueous slurry consisting of (1) at least 8% by wt water; (2) at least 40% by wt ammonium nitrate; (3) at least 0.5% by wt finely divided solid fuel, selected from particulate aluminum and gilsonite; (4) at least 1% by wt dissolved hexamethylene-tetramine sufficient to improve sensitivity; and (5) a stabilizing amount of a water- soluble hydroxy-substituted thickening agent. The pH of the aqueous slurry is regulated to a value between 4 and 7 and a sufficient quantity of an aqueous solution of zirconium sulfate, aluminum sulfate, and chromic acid is injected into the exit stream from the pump to convert the thickened slurry into a stable, uniform, water- resistant gel. (3 claims)

• Assignee: Gulf Oil Corp.
• Patent Number(s): US 3676236
• OSTI ID: 6024771
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100 -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
ALUMINIUM
ALUMINIUM COMPOUNDS
ALUMINIUM SULFATES
AMMONIUM COMPOUNDS
AMMONIUM NITRATES
CHEMICAL COMPOSITION
CHEMICAL EXPLOSIVES
CHROMIC ACID
CHROMIUM COMPOUNDS
COLLOIDS
DISPERSIONS
ELEMENTS
ENERGY SOURCES
EXPLOSIVE STIMULATION
EXPLOSIVES
FOSSIL FUELS
FUELS
GELATION
GELS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
METALS
MIXTURES
NITRATES
NITROGEN COMPOUNDS
OIL WELLS
OXYGEN COMPOUNDS
PETROLEUM
PH VALUE
SENSITIVITY
SLURRIES
STIMULATION
SULFATES
SULFUR COMPOUNDS
SUSPENSIONS
TRANSITION ELEMENT COMPOUNDS
WATER
WELL COMPLETION
WELL STIMULATION
WELLS
ZIRCONIUM COMPOUNDS
ZIRCONIUM SULFATES