METHOD FOR FRACTURING SUBTERRANEAN ROCK

摘要

A method of hydraulically fracturing a subterranean formation is provided. The method comprises generating a primary fracture using a fracturing fluid. The method further comprises extending the primary fracture and/or creating micro fractures about the primary fracture by initiating a chemical reaction such as an exothermic reaction at about the primary fracture. In one embodiment, the fracturing fluid is used to convey one of the reactive components participating in the chemical reaction.

主权项

1. A method of hydraulically fracturing a subterranean formation penetrated by a wellbore, the method comprising:
injecting a fracturing fluid through the wellbore and against the formation at a rate and pressure sufficient to generate at least a primary fracture into the formation at a fracture zone; deploying a first and a second reactive component, which are isolated from each other, into the wellbore and maintaining said isolation until the first and second reactive components reach the fracture zone; generating the primary fracture; and extending the primary fracture and/or creating micro fractures about the primary fracture by initiating a chemical reaction at about the primary fracture by enabling contact between the first and second reactive components at the fracture zone.