Depositional history and performance of a Bell Canyon sandstone reservoir, Ford-Geraldine field, west Texas

Conference · Sun Apr 01 04:00:00 EST 1984 · Am. Assoc. Pet. Geol., Bull.; (United States)

OSTI ID:6376239

Ruggiero, R W; Scott, A J

The late Guadalupian Bell Canyon Formation comprises alternating siltstone and fine to very fine-grained sandstone, which constitute economically important, shallow (2000-3000 ft, 600-900 m) oil reservoirs in the Delaware basin. In Ford-Geraldine field (Reeves and Culberson Counties), the Ramsey sandstone member, uppermost sand of the Bell Canyon Formation, was deposited in a deep-water, sediment-starved, euxinic basin. The Ford-Geraldine field produces from one of these Ramsey sandfilled terminal channels with original reserves estimated at 110 million bbl of oil. Within this complex trap framework, hydrocarbon distribution in the field is determined by a combination of stratigraphy, subtle structure, and hydrodynamics. Large variations in sandstone porosity and permeability over short vertical and horizontal distances result from: (1) channeling within the larger channel complex, (2) the occurrence of thinly laminated siltstone layers isolating individual sand layers, (3) sandstone pinch-out into siltstone, and (4) the distribution of calcite and authigenic clay cements. Primary and secondary production extracted 22% of the original oil in place. Tertiary production (alternating carbon dioxide and waterflood) is underway. Reservoir characteristics described here must be incorporated into the enhanced recovery model to make valid predictions of tertiary recovery performance.

• Research Organization: Sohio Petroleum Co., Houston, TX
• OSTI ID: 6376239
• Report Number(s): CONF-8405216-
• Conference Information: Journal Name: Am. Assoc. Pet. Geol., Bull.; (United States) Journal Volume: 68:4
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
DEPOSITION
ENHANCED RECOVERY
FEDERAL REGION VI
FLUID INJECTION
GAS INJECTION
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GEOLOGIC HISTORY
GEOLOGIC TRAPS
MINERAL RESOURCES
NORTH AMERICA
OIL FIELDS
PETROLEUM DEPOSITS
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RECOVERY
RESERVOIR ROCK
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
TEXAS
USA
WATERFLOODING