Patent ID: 6887834
Filing Date: 2005-05-03
Classification: C09K,Y10S

Abstract:
1. An improved method of forming one or more fractures in a subterranean zone penetrated by a well bore and consolidating proppant particles therein, the subterranean zone having a temperature above about 200° F. comprising the steps of: (a) providing proppant particles coated with a hardenable resin composition comprising furfuryl alcohol resin, furfuryl alcohol, a solvent for said resin selected from the group consisting of dipropylene glycol methyl ether, dipropylene glycol dimethyl ether, diethylene glycol methyl ether, ethylene glycol butyl ether, diethylene glycol butyl ether, dimethyl formamide, propylene carbonate, butyl acetate, furfuryl acetate, d'limonene and fatty acid methyl esters, a silane coupling agent, and a surfactant for facilitating the coating of said resin on said proppant particles and for causing said resin to flow to the contact points between adjacent resin coated proppant particles; (b) providing a gelled liquid fracturing fluid; (c) pumping said gelled liquid fracturing fluid into said subterranean zone to form said one or more fractures and to deposit said proppant particles therein; (d) mixing said proppant particles coated with said hardenable resin composition with said fracturing fluid pumped in accordance with step (c) whereby said proppant particles coated with said hardenable resin composition are suspended therein; (e) terminating steps (c) and (d) when said proppant particles coated with said hardenable resin composition have been deposited in said one or more fractures; and; (f) allowing said hardenable resin composition on said resin composition coated proppant particles to harden by heat and consolidate said proppant particles into one or more chemical and thermal degradation resistant permeable packs.