Petrophysical Modeling Using Seismic Attributes and Geological Maps

A-25 PETROPHYSICAL MODELING USING SEISMIC ATTRIBUTES AND GEOLOGICAL MAPS Abstract 1 Subsurface models of reservoir properties like porosity or permeability are often related to lithofacies distribution. In addition seismic attributes can also provide valuable information regarding the lateral variation of reservoir properties which well data cannot furnish because of relatively large well spacing. An integrated method is proposed here to generate a reservoir model in terms of physical properties by the control of lithofacies and seismic information. Neural network and geostatistics are incorporated in this method. The method is divided in three steps: 2D neural network prediction of porosity where