In recent years, three dimensional conditional simulation (3DCS) has become a popular technique to interpolate reservoir characteristics such as porosity, permeability, and facies between wells. 3DCS is usually thought to be the best characterization method for flow studies. However, this technique is also quite CPU intensive. Other geostatistical methods, such as pseudo 3D conditional simulation (P3DCS), 3D kriging (3DK), and pseudo 3D kriging (P3DK) are less CPU intensive. Therefore it is important to know how much less intensive these methods are and when they can be substituted for 3DCS.

In this paper, we will compare results from the above methods using actual resistivity data from the Kern River Field in California as input. We will also compare the output from two different 3D graphics packages.

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