Patent ID: 7261159

Claim:
A method for perforating a well, comprising: placing a perforating device in a wellbore, wherein the wellbore is defined by a generally cylindrical casing and passes through a subterranean formation that comprises hydrocarbon formation fluids, wherein the perforating device comprises at least one explosive perforating charge that can be detonated, and wherein the casing is located between the subterranean formation and the perforating device; placing a perforating fluid in the wellbore between the perforating device and the casing, wherein the ratio of the critical temperature of the perforating fluid in ° K and the temperature of the subterranean formation adjacent to the casing in ° K is between about 1.0-1.3; and detonating the at least one explosive charge, whereby the perforating device forms at least one perforation in the casing that permits the flow of hydrocarbon formation fluids from the subterranean formation into the wellbore, and at least a portion of the perforating fluid is forced into the subterranean formation.