One approach to the grid orientation problem in reservoir simulation

Conference · Mon Jan 01 04:00:00 EST 1979 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5775011

Au, A D.K.; Vinsome, P K

A simple physical explanation is given for the grid orientation problem. It is argued that when a saturation shock front exists between nodal points, there is an inconsistency in the standard upstream finite-difference approximations, which leads to incorrect pressure drops across the shock front. The problem is reformulated under the assumption that a saturation shock front is present. The result is a harmonic expression for total fluid mobility, which can easily be incorporated into any existing finite-difference simulator, whether implicit, explicit, thermal or isothermal. It is shown by means of demonstration examples, with adverse mobility ratios up to 1000, that the grid orientation problem is greatly alleviated.

• OSTI ID: 5775011
• Report Number(s): CONF-790913-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE-8247
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
580300* -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
ENERGY SOURCES
ENGINEERING
ENHANCED RECOVERY
FLUID FLOW
FLUID INJECTION
FOSSIL FUELS
FUELS
MATHEMATICS
ORIENTATION
PERFORMANCE
PETROLEUM
RECOVERY
RESERVOIR ENGINEERING
RESERVOIR PRESSURE
RESERVOIR ROCK
SATURATION
SIMULATION
WATERFLOODING