A method for reducing a permeability of at least one zone in a subterranean formation that
includes introducing a treatment fluid to at least one permeable zone in a subterranean …

Gellable treatment fluids may have their gel times modified by using a polymer mixture
therein that contains two or more polymers having disparate average molecular weights …

A method of treating a subterranean formation is disclosed. The method can include placing
in the subterranean formation a crosslinked composition that includes proppant particles …