Improved methods and compositions for consolidating proppant in
subterranean fractures are provided. In certain embodiments, the
hardenable resin compositions may be especially suited for consolidating
proppant in subterranean fractures having temperatures above about
200.degree. F. Improved methods include providing proppant particles
coated with a hardenable resin composition mixed with a gelled liquid
fracturing fluid, and introducing the fracturing fluid into a
subterranean zone. The fracturing fluid may form one or more fractures in
the subterranean zone and deposit the proppant particles coated with the
resin composition therein. Thereafter, the hardenable resin composition
on the proppant particles is allowed to harden by heat and to consolidate
the proppant particles into degradation resistant permeable packs. The
hardenable resin composition may include a liquid bisphenol
A-epichlorohydrin resin, a 4,4'-diaminodiphenyl sulfone hardening agent,
a solvent, a silane coupling agent, and a surfactant. The solvent may
include diethylene glycol monomethyl ether or dimethyl sulfoxide.