CO/sub 2/ miscible flooding evaluation of the South Welch Unit, Welch San Andres Field

Conference · Sun Apr 01 04:00:00 EST 1984 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:6869239

Keeling, R J

The South Welch Unit, in Dawson County, Texas, was selected as a miscible flooding candidate in 1981 based on the recommendation of a feasibility study. The central 300 acres (1,214 Mm/sup 2/) of the unit were designated as the Phase One area, and infill drilling of this area was begun in 1981. CO/sub 2/ injection was initiated in February of 1982 with CO/sub 2/ trucked to the location in liquid form. Simulations were made to predict the recovery from the Phase One area under several production methods. These methods included: 20% IHCPV slug CO/sub 2/ injected continuously 20% IHCPV slug CO/sub 2/ injected using a 2:1 4 cycle WAG 25% IHCPV slug CO/sub 2/ injected using a 2:1 5 cycle WAG Continued waterflooding on 20 acre line drive patterns All simulations were made with the current CO/sub 2/ supply limitations taken into consideration. The 25% slug, 2:1 5 cycle WAG case is the optimum mode of operation based on sensitivity studies.

• Research Organization: Cities Service Oil and Gas Corp.
• OSTI ID: 6869239
• Report Number(s): CONF-8304162-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE/DOE 12664
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CARBON DIOXIDE INJECTION
ENHANCED RECOVERY
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FLUID INJECTION
FORECASTING
GEOLOGIC DEPOSITS
MINERAL RESOURCES
MISCIBLE-PHASE DISPLACEMENT
NORTH AMERICA
OIL FIELDS
OIL WELLS
PETROLEUM DEPOSITS
RECOVERY
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WELLS