Methane hydrates improved hydrostatic pressure of foam fracturing

A method of fracturing a subterranean formation, comprising:

• (a) preparing a treatment fluid comprising an aqueous base fluid, and a viscosifying agent, wherein the treatment fluid has a first density;
• (b) introducing the treatment fluid into a wellbore extending into a subterranean formation wherein the wellbore has perforations allowing fluid flow communication between the subterranean formation and the wellbore;
• (c) pressurizing a liquefied natural gas and then vaporizing the thus pressurized liquefied natural gas;
• (d) introducing the thus vaporized natural gas into the treatment fluid so that the treatment fluid is foamed by the introduction of the vaporized natural gas and so that the vaporized natural gas forms gas hydrates with the aqueous base fluid in the treatment fluid in situ within the wellbore;
• (e) introducing the treatment fluid containing the gas hydrates into a portion of the wellbore extending into the subterranean formation where the temperature and pressure at the portion are sufficient to convert the gas hydrates into a gaseous state so as to further foam the treatment fluid by the conversion of the gas hydrates into a gaseous state;
• and
• (f) introducing the thus foamed treatment fluid into the subterranean formation at a pressure sufficient to fracture the formation.