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. (WO2018022693) METHOD FOR FRACTURING USING A BUOYANT ADDITIVE FOR PROPPANT TRANSPORT AND SUSPENSION

Pub. No.:    WO/2018/022693    International Application No.:    PCT/US2017/043853
Publication Date: Fri Feb 02 00:59:59 CET 2018 International Filing Date: Thu Jul 27 01:59:59 CEST 2017
IPC: C09K 8/80
E21B 43/267
Applicants: BAKER HUGHES, A GE COMPANY, LLC
Inventors: BESTAOUI-SPURR, Naima
CREWS, James B.
Title: METHOD FOR FRACTURING USING A BUOYANT ADDITIVE FOR PROPPANT TRANSPORT AND SUSPENSION
Abstract:
The transport and suspension of proppant in a fracturing fluid used to fracture a subterranean formation is improved by incorporating a buoyant additive into a carrier fluid that also comprises a proppant. The buoyant additive has a surface, in one non-limiting embodiment a hydrophobic surface or a superhydrophobic surface, and the buoyant additive is present in an amount effective to suspend at least a portion of the proppant in the fracturing fluid. The buoyant additive has had its surface modified with a surface modifying agent, which may include, but is not necessarily limited to, wax, silica, an organo silane, a siliconate, a silicate, a silsesquioxane, phosphonic acids, transition metal oxides, post-transition metal oxides, silicon, and combinations thereof.