SOLIDS-FREE DIVERTING AGENTS AND METHODS RELATED THERETO

摘要

Diverting fluids may include a solids-free diverting agent having a non-dissolved suspended solids content of less than about 0.01% by weight of the solids-free diverting agent and comprising degradable polyesters dissolved in a water-miscible solvent. Method of utilizing such diverting fluids in subterranean operations may include providing a subterranean formation that comprises a first portion and a second portion, wherein the first portion has a higher permeability than the second portion; introducing the diverting fluid into the first portion; precipitating the degradable polyester in the diverting fluid by contacting at least a portion of the diverting fluid in the first portion with an aqueous fluid to form a precipitated degradable polyester, thereby reducing fluid flow into the first portion; diverting at least a portion of a treatment fluid to the second portion; and treating at least a portion of the second portion with the treatment fluid.