Using Convolutional Neural Networks for Denoising and Deblending of Marine Seismic Data

TL;DR

This paper explores using deep convolutional neural networks to efficiently denoise and deblend marine seismic data, showing promising preliminary results and improvements over traditional shot domain processing.

Contribution

The study demonstrates the application of CNNs in seismic data processing, highlighting the benefits of common channel domain for improved noise separation and computational efficiency.

Findings

Preliminary results show effective denoising and deblending.

Common channel domain improves noise separation and efficiency.

CNN-based processing reduces computational demands.

Abstract

Processing marine seismic data is computationally demanding and consists of multiple time-consuming steps. Neural network based processing can, in theory, significantly reduce processing time and has the potential to change the way seismic processing is done. In this paper we are using deep convolutional neural networks (CNNs) to remove seismic interference noise and to deblend seismic data. To train such networks, a significant amount of computational memory is needed since a single shot gather consists of more than 106 data samples. Preliminary results are promising both for denoising and deblending. However, we also observed that the results are affected by the signal-to-noise ratio (SnR). Moving to common channel domain is a way of breaking the coherency of the noise while also reducing the input volume size. This makes it easier for the network to distinguish between signal and noise. It also increases the efficiency of the GPU memory usage by enabling better utilization of multi core processing. Deblending in common channel domain with the use of a CNN yields relatively good results and is an improvement compared to shot domain.