Comparison of the Function of Conventional Neural Networks for Estimating Porosity in One of the Southeastern Iranian Oil Fields

Document Type : Research Paper

Authors

1 Department of Mining, Faculty of Engineering, Imam Khomeini International University

2 Department of Geology, Faculty of Sciences, Imam Khomeini International University

3 Head of Exploration Project Management, Iranian Offshore Oil Company

Abstract

In the oil industry, artificial intelligence is used to identify relationships, optimize, estimate and classify porosity. One of the most important steps in evaluating the petrophysical parameters of the reservoir is to identify the porosity properties. The main purpose of this study is to compare the accuracy and generalizability of three multilayer feed neural networks (MLFNs), radius base function networks (RBFNs) and probabilistic neural networks (PNNs) to estimate porosity using seismic properties. In this regard, geological data of 7 wells were evaluated from an offshore oil field in Hindijan in the northwest of the Persian Gulf basin. Acoustic impedance was estimated using model-based inversion method, and then the mentioned neural networks were designed using optimal seismic properties and evaluated by stepwise regression method. Finally, it became clear that the MLFN model did not work well for estimating porosity. PNN has the best performance accuracy in porosity interpolation, but RBFNꞌs generalizability is better.
 

Keywords

References

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Journal of Petroleum Research
Volume 31, 1400-3 - Serial Number 118
September and October 2021
Pages 90-105

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