Seismic Inverse Modeling Method based on Generative Adversarial Network

TL;DR

This paper introduces a seismic inverse modeling method using GANs that efficiently generates models consistent with geological data, improving inversion speed and reducing uncertainty in reservoir prediction.

Contribution

It presents a novel GAN-based approach for seismic inversion that integrates geological knowledge, enabling rapid and accurate model generation with low uncertainty.

Findings

Generated 1000 models in 1 second

Models conform to observation data

Low uncertainty in inversion results

Abstract

Seismic inverse modeling is a common method in reservoir prediction and it plays a vital role in the exploration and development of oil and gas. Conventional seismic inversion method is difficult to combine with complicated and abstract knowledge on geological mode and its uncertainty is difficult to be assessed. The paper proposes an inversion modeling method based on GAN consistent with geology, well logs, seismic data. GAN is a the most promising generation model algorithm that extracts spatial structure and abstract features of training images. The trained GAN can reproduce the models with specific mode. In our test, 1000 models were generated in 1 second. Based on the trained GAN after assessment, the optimal result of models can be calculated through Bayesian inversion frame. Results show that inversion models conform to observation data and have a low uncertainty under the premise of fast generation. This seismic inverse modeling method increases the efficiency and quality of inversion iteration. It is worthy of studying and applying in fusion of seismic data and geological knowledge.