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Oilfield Glossary
Oilfield Glossary
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1. n. [Geology]
Abbreviation for gas-water contact, a bounding surface in a reservoir above which predominantly gas occurs and below which predominantly water occurs. Gas and water are somewhat miscible, so the contact between gas and water is not necessarily sharp and there is typically a transition zone between 100% gas and 100% water in reservoirs.
Alternate Form: gas-water contact