Steam flood pilot, Nacatoch Sand--Troy field, Arkansas

Conference · Tue Jan 01 04:00:00 EST 1974 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:6812884

Connally, Jr, C A; Marberry, J E

A test of steam flooding to improve recovery of 14/sup 0/ API, 7,000 Hz oil from the Nacatoch Sand was conducted in a 15-acre inverted 5-spot pattern in Troy field, Arkansas. Five observation wells within the pattern were used to monitor temperature and pressure. Oil saturation was about 50% of pore space when steam injection began after a long history of pressure depletion and edge water influx. Steam fingered a distance of 2 well locations (1,200 ft) outside the pilot pattern while reaching only 2 of the pilot producers.Ultimate areal sweep within the test pattern was about 50%. Invasion efficiency of the steam zone in the 20 ft thick sand was approx. 40% with gravity override causing steam to move to the upper part of the sand. Oil recovery from the pattern during steam drive was about 10% of the oil in place and the steam/oil ratio was about 12 bbl/bbl. Injection of water subsequent to steam resulted in recovery of an additional 6%. It was concluded that closer well spacing would likely enhance recovery but would be uneconomic.

• Research Organization: Mobil Res and Develop Corp.
• OSTI ID: 6812884
• Report Number(s): CONF-7404143-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE-4758
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ARKANSAS
ENERGY SOURCES
ENHANCED RECOVERY
FEDERAL REGION VI
FLUID INJECTION
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
MINERAL RESOURCES
NORTH AMERICA
OIL FIELDS
OIL SATURATION
OIL WELLS
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PETROLEUM DEPOSITS
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RESOURCES
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STIMULATION
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WATER INFLUX
WELL SPACING
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