Water/oil displacement characteristics in cross-bedded reservoir zones
Conference
·
· Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:5718671
Festoon cross-bedding is one of the typical sedimentary structures in sandstone reservoirs. It is especially common in fluviatile deposits. To gain insight into the complex, direction-dependent displacement characteristics of a cross-bedded reservoir zone, numeric simulations were conducted on a centimeter scale in a small part of a cross-bedded reservoir zone. The simulations indicate that, during water/oil displacement, considerable amounts of movable oil are initially left behind in the higher-permeability foreset laminae with fluid flow perpendicular to the foreset laminae, whereas with flow parallel to the foreset laminae, the displacement efficiency is good. To enable a proper description of the displacement characteristics on a reservoir scale, a procedures was developed for calculating direction- dependent pseudo relative permeability and capillary- pressure curves to be used as input for the simulations of water/oil displacement in a cross-bedded reservoir zone.
- OSTI ID:
- 5718671
- Report Number(s):
- CONF-8310121-
- Conference Information:
- Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE-12112
- Country of Publication:
- United States
- Language:
- English
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