An experimental study of water imbibition in chalk from the Ekofisk Field

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

OSTI ID:6644763

Torsaeter, O

The Ekofisk Field in the North Sea produces from two lithologically similar, low permeability fractured chalk formations. The Ekofisk Formation of Danian age is separated from the lower Tor Formation of Maastrichtian age by a tight zone of about 15 m thickness. With a projected primary recovery factor of only 18%, the secondary recovery target is substantial. A pilot waterflood has been conducted in the Tor Formation and expansion of waterflooding to a large area of the Tor is planned. For waterflooding to recover substantial oil in a highly fractured rock large saturation changes in the matrix rock must be achieved through water imbibition.

• Research Organization: The Norwegian Inst. of Technology
• OSTI ID: 6644763
• Report Number(s): CONF-8304162-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE/DOE 12688
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ATLANTIC OCEAN
BENCH-SCALE EXPERIMENTS
CARBONATE ROCKS
CRYSTAL STRUCTURE
DISPLACEMENT FLUIDS
DRILL CORES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FRACTURED RESERVOIRS
GEOLOGIC DEPOSITS
LIMESTONE
MECHANICS
MICROSTRUCTURE
MINERAL RESOURCES
NORTH SEA
OIL FIELDS
OIL WELLS
PETROLEUM DEPOSITS
POROSITY
RECOVERY
RESERVOIR ROCK
RESOURCES
ROCK MECHANICS
ROCK-FLUID INTERACTIONS
ROCKS
SEAS
SEDIMENTARY ROCKS
SORPTIVE PROPERTIES
SURFACE PROPERTIES
SURFACE WATERS
WATERFLOODING
WELLS