CPC C09K 8/805 (2013.01) [C09K 8/64 (2013.01); C09K 8/703 (2013.01); E21B 43/267 (2013.01); C09K 2208/08 (2013.01); C09K 2208/10 (2013.01); C09K 2208/30 (2013.01)] | 14 Claims |
1. A method of hydraulic fracturing, comprising:
providing a foam fracturing fluid through a wellbore into a subterranean formation;
hydraulically fracturing the subterranean formation with the foam fracturing fluid, thereby generating fractures in the subterranean formation;
conveying proppant in the foam fracturing fluid through the wellbore into the fractures, wherein the proppant comprises resin coating comprising unfunctionalized organic resin and functionalized nanoparticles that adhere to the unfunctionalized organic resin, wherein nanoparticles are reacted with at least one of an alkoxysilane solution or a halosilane solution to form the functionalized nanoparticles comprising at least one of a fluorosilane moiety, a perfluorosilane moiety, or an alkylsilane moiety for incorporation into the resin coating, and
wherein a surface modifier is applied to the resin coating prior to inclusion of the proppant in the foam fracturing fluid, the surface modifier comprising at least one of an alkyl fluorosilane, a fluorinated surfactant, a fluorinated polymer, or a fluorinated polymeric surfactant; and
forming pillars of proppant in the fractures by intermittently adjusting a property of the foam fracturing fluid conveying the proppant.
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