CO sub 2 miscible flooding - How and where it works

Conference · Sun Feb 01 04:00:00 EST 1987 · AAPG Bulletin (American Association of Petroleum Geologists); (USA)

OSTI ID:5284995

Birk, S C ^[1]

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1. Mobil Research and Development Corp., Dallas, TX (USA)

In an oil reservoir, capillary forces cause a substantial oil saturation to remain after waterflooding. Miscible flooding is designed to eliminate the capillary forces and to move the trapped crude oil to the production wells. The most commonly used type of miscible flooding is a dynamic process called multiple contact miscibility, in which the injected fluid and the reservoir crude oil exchange components. An example of a fluid that can develop multiple contact miscibility is carbon dioxide. Carbon dioxide flooding can be applied to nearly all reservoir environments. Screening criteria for this process include reservoir temperature and pressure, crude oil composition, reservoir size, and proximity of a large source of inexpensive CO{sub 2}. The major problems in CO{sub 2} flooding arise from the low viscosity and low density of the CO{sub 2} and from the reservoir heterogeneity. Techniques have been developed to reduce the effects of the fluid properties. A good reservoir description is essential to minimize the effects of the reservoir character.

• OSTI ID: 5284995
• Report Number(s): CONF-8703189--
• Conference Information: Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (USA) Journal Volume: 71:2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CARBON DIOXIDE INJECTION
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FUELS
MISCIBLE-PHASE DISPLACEMENT
OIL SATURATION
OIL WELLS
PETROLEUM
RECOVERY
RESERVOIR ROCK
SATURATION
VISCOSITY
WATERFLOODING
WELLS