Forbedrede metoder for fluidplassering og avledning i underjordiske formasjoner Bakgrunn

摘要

Improved methods of placing and/or diverting treatment fluids in subterranean formations are provided. In one embodiment, the methods comprise: introducing a diverting material into a subterranean formation penetrated by a well bore to reduce or prevent the flow of fluid into a first portion of the subterranean formation; introducing a first fluid into a second portion of the subterranean formation having a higher fluid flow resistance than the first portion of the subterranean formation; allowing the diverting material to be removed from the subterranean formation after at least a portion of the first fluid has been introduced into the second portion of the subterranean formation; and introducing a second fluid into the first portion of the subterranean formation.