Patent ID: 9441473
Filing Date: 2016-09-13
CPC Classification: E21B

Claim Text:
1. A method of enhancing production of a combustible fluid from a region of a subterranean formation below a surface region, the method comprising: combusting a fuel stream with an oxidant stream within a combustion assembly located at a surface region to generate a combusted fuel and oxidant combustion product fluid stream for use as a fracturing fluid stream, wherein the fracturing fluid stream comprises the combustion product fluid stream; maintaining a concentration of oxygen in the fracturing fluid stream comprising the combustion product below a limiting oxygen concentration for supporting combustion of the combustible fluid within the subterranean formation; cooling the fracturing fluid stream to a temperature of less than 200° C., flowing the cooled fracturing fluid stream through a wellbore from the surface region to the subterranean formation; and injecting the cooled fracturing fluid stream into the region of the subterranean formation at a pressure within the region of the subterranean formation that is greater than a hydraulic fracture pressure of the region of the subterranean formation to hydraulically fracture the subterranean formation.