1887
Volume 73, Issue 2
  • E-ISSN: 1365-2478

Abstract

Abstract

High‐quality seismic data play a crucial role in accurately interpreting tectonic and lithologic features such as small faults, river margins and thin beds. Over the past decades, researchers have developed numerous methods to enhance seismic resolution and signal‐to‐noise ratio. However, the benefits of quality‐improved seismic data for seismic interpretation have received limited attention. In response, we propose a generative adversarial network–based algorithm to enhance seismic quality and assess how this algorithm improves the accuracy of both machine learning–based and manual fault identification. For machine learning–based fault identification, we integrate a resolution enhancement and noise attenuation neural network (HRNet) with a fault identification neural network (FaultNet). A raw seismic image is first fed into the trained HRNet to obtain a resolution‐enhanced and noise‐suppressed image, which is then input into the trained FaultNet to produce the high‐resolution fault probability map. For manual fault identification, we enlisted three interpreters with geophysical backgrounds to annotate faults on seismic images both before and after HRNet enhancement. Comparison experiments on three field seismic samples show that our method generates more accurate, cleaner and sharper fault probability maps than directly feeding raw seismic images into FaultNet. In addition, our workflow outperforms both the milestone fault identification method and state‐of‐the‐art Transformer‐based neural networks, particularly in detecting small‐scale faults. Furthermore, the HRNet‐enhanced seismic images help interpreters identify small‐ and medium‐scale faults with reduced uncertainty. In the future, HRNet‐enhanced seismic data can be applied to a broader range of high‐precision seismic interpretation tasks, including horizon picking, channel boundary detection and attribute inversion.

© 2025 European Association of Geoscientists & Engineers. © 2025 European Association of Geoscientists & Engineers.
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2025-01-26
2026-01-25

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Applications of deep learning‐based resolution‐enhanced seismic data in fault identification
Geophysical Prospecting 73, 523 (2025); https://doi.org/10.1111/1365-2478.13664
/content/journals/10.1111/1365-2478.13664
/content/journals/10.1111/1365-2478.13664
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  • Article Type: Research Article
Keyword(s): data processing; deep learning; fault identification; fault interpretation; seismic images; seismic resolution; seismics

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