CO/sub 2/ injection for tertiary oil recovery, Granny's Creek field, Clay County, West Virginia

Conference · Fri Jan 01 04:00:00 EST 1982 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:6468795

Watts, R J; Conner, W D; Wasson, J A; Yost, II, A B

Columbia Gas Transmission Corporation, with financial assistance from the US DOE,planned and operated an Enhanced Oil Recovery Project in the Granny's Creek oil field, Clay County, West Virginia. The objective of the field test was to determine the feasibility and economics of recovering additional oil from a (flooded-out) low-oil saturated reservoir using carbon dioxide (CO/sub 2/) for miscible displacement of residual oil. CO/sub 2/ injection was initiated in early June 1976. Injection was into four corner wells of a normal five-spot. In the initial test, 10,000 tons (9070 t) of CO/sub 2/ was injected into the four wells, employing the WAG injection technique for mobility control. Due to pilot pressure distribution, less than 12 percent of the CO/sub 2/ entered the pattern. In a second pilot operation phase, a single injection well minitest was initiated within the original CO/sub 2/ pilot pattern. Over 2100 tons (1900 t) of CO/sub 2/ was injected for this test. Oil production within the pattern during the first phase was over 4000 barrels (640 m/sup 3/) with a CO/sub 2//oil ratio of 2500 to 5000 scf/bbl (445 to 890 m/sup 3//m/sup 3/). The minitest produced oil at a 17,337 scf/bbls (3100 m/sup 3//m/sup 3/) CO/sub 2/ utilization rate. It does not appear that the CO/sub 2/ miscible displacement process will be economical for tertiary oil recovery in such low-oil saturation reservoirs without better mobility control for greater sweep efficiency. The test results have determined though, that the CO/sub 2/ process can mobilize and recover a significant volume of additional oil after waterflooding. (JMT)

• OSTI ID: 6468795
• Report Number(s): CONF-820419-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States)
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON DIOXIDE INJECTION
CARBON OXIDES
CHALCOGENIDES
ENHANCED RECOVERY
FEDERAL REGION III
FLUID INJECTION
GEOLOGIC DEPOSITS
MINERAL RESOURCES
MISCIBLE-PHASE DISPLACEMENT
NORTH AMERICA
OIL FIELDS
OIL SATURATION
OIL WELLS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM DEPOSITS
RECOVERY
RESERVOIR ROCK
RESOURCES
SATURATION
USA
WATERFLOODING
WELLS
WEST VIRGINIA