Oilfield Glossary
Oilfield Glossary
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foam diversion

1. n. [Well Workover and Intervention]
The use of foam as a diverting agent during staged stimulation treatments. Stable foam is relatively viscous and the effect within a reservoir matrix can be used to divert subsequent acid stages from the zones already treated. Following the treatment, the foam breaks, with little risk of formation damage, to form a mixture of liquid and gaseous nitrogen that facilitates the cleanup process.