Patent ID: 7665522
Filing Date: 2010-02-23
Classification: C09K,Y10S

Abstract:
1. A method of fracturing a subterranean formation comprising: a. preparing a fluid comprising an aqueous medium, and a viscosifying agent; b. adding a gas component to the fluid to form a foam; c. adding fiber to the fluid to stabilize a foam, said fiber selected from the group consisting of natural organic fibers, comminuted plant materials, novoloids, novoloid-type polymers, polyaramides, glasses, ceramics, metals, carbon, and any mixture thereof; d. injecting the mixture of the fluid, gas component and fiber into a subterranean formation at a pressure sufficient to fracture the formation, wherein a foam formed from the mixture of fluid, fibers and gas component has a foam half-life value greater than 2 hours.