Porous media have properties with heterogeneities on several length scales. It is possible to
build digital models of such properties. However these can be so detailed that a computing …

A variety of approaches for gridding and upscaling of detailed geocellular models for flow
simulation are reviewed. Local, extended local, global and quasi global techniques for the …

Despite computational advances, geo-cellular models are routinely upscaled for reservoir
simulation purposes. Geo-cellular models typically incorporate small scale variations …

Compositional simulation of oil reservoirs is necessary for accurate representation of the
physics associated with processes such as miscible or near-miscible gas injection with the …

Upscaling of absolute permeability from geological/geostatistical models to reservoir flow
simulation models has been discussed for a long time. It has been generally recognized that …

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Compositional flow simulation can be very demanding computationally because it can
involve complex physics and many unknowns. This issue is of particular concern in certain …

In this paper, a technique for upscaling of absolute permeability in the well vicinity on CPG
(Corner-Point Geometry) gridblocks is presented. The near-well upscaling procedure is very …

The difficulty of permeability upscaling from fine to coarse gridblocks is the dependence of
upscaling results on boundary conditions, that lead to a non-unique solution. Using a near …

Near-well effects can have a strong impact on many subsurface flow processes. In oil
production, because dissolved gas is released from the oil phase when the pressure falls …