Vertical conformance in an alternating water-miscible gas flood

Conference · Wed Sep 01 00:00:00 EDT 1982 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5327262

Stone, H L

Oil recovery by the injection of water alternately with gas (WAG flooding) is often limited by gravity segregation, which causes the injected gas to rise to the top of the formation and water to migrate to the bottom. This segregation results in a miscible flood in only a thin layer at the top of the formation, whereas the remainder is waterflooded. However, vertical conformance in a WAG flood can be greatly improved by use of injection rates that are high relative to well spacing. The degree of improvement and, hence, the resultant oil recovery is primarily a function of a single dimensionless parameter, depending on the viscosity density ratio.

• Research Organization: Exxon Production Research Co.
• OSTI ID: 5327262
• Report Number(s): CONF-820927-
• Journal Information: Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE11130; ISSN SEAPA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ENHANCED RECOVERY
FLOW RATE
FLUID FLOW
FLUID INJECTION
FLUID MECHANICS
FLUIDS
GAS INJECTION
GASES
GRAVITATION
HYDROGEN COMPOUNDS
INJECTION WELLS
MECHANICS
OIL WELLS
OXYGEN COMPOUNDS
RECOVERY
RESERVOIR ROCK
SEGREGATION
WATER
WATERFLOODING
WELL SPACING
WELLS