Performance Evaluation of Complex Neural Networks in Reservoir Characterization: Applied to Boonsville 3-D Seismic Data

Summary Geophysical reservoir characterization requires building a nonlinear relation between seismic attributes and rock/fluid properties computed from well logs. With such a relation, the rock/fluid properties computed from well logs can be extended to inter-well points. Neural networks are powerful tools to obtain such nonlinear relation. In this study, radial basis function (RBF) neural networks are evaluated in the application of porosity prediction, and multilayer RBF networks are confirmed to outperform traditional single layer RBF networks. Also, centroid based multilayer perceptron (CMLP) network, hybrid of RBF and multilayer perceptron (MLP), turns out to have the best performance among all the tested network types. Porosity of Caddo Member in Boonsville field, Texas is predicted by the CMLP network which has the best prediction performance among tests.