Oilfield Glossary
Oilfield Glossary
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1. n. [Enhanced Oil Recovery, Heavy Oil]
An enhanced oil recovery process whereby water injection and gas injection are carried out alternately for periods of time to provide better sweep efficiency and reduce gas channeling from injector to producer. This process is used mostly in CO2 floods to improve hydrocarbon contact time and sweep efficiency of the CO2.
Alternate Form: water alternating gas