Gas-Oil Contact 1
Gas-Oil Contact 1 : (n). Geology. A bounding surface in a reservoir above which predominantly gas occurs and below which predominantly oil occurs. Gas and oil are miscible, so the contact between gas and oil is transitional, forming a zone containing a mix of gas and oil. Alt. form: GOC. See: downdip, fluid contact, gas-water contact, immiscible, oil-water contact, updip