1. n. [Well Workover and Intervention]

The use of mechanical devices, such as ball sealers, packers and straddle-packer assemblies, to divert reservoir treatments to the target zone. Ball sealers and solid-particle diverting agents incorporated into the treatment fluid form a temporary plug in the perforations accepting the most fluid flow, thereby diverting the remaining treatment fluid to the less permeable zones. Packers and straddle-packer assemblies function by performing several short treatments over a longer interval to help ensure an even treatment over the entire zone.