A new approach to remove the numerical dispersion in elastic wave modeling using R-Cycle-GAN networks

IF 1.6 3区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS Journal of Geophysics and Engineering Pub Date : 2023-09-13 DOI:10.1093/jge/gxad074
Wanqiu Zheng, Jian Wang, Xiaohong Meng
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引用次数: 0

Abstract

Abstract The finite difference forward modeling has been widely used in geophysics exploration and petroleum fields. Because of its high efficiency and easy application for graphical processing units, it has been widely concerned by industry and academia. However, owing to many factors, the problem of numerical dispersion has been an important factor hindering this method. To overcome the numerical dispersion, this paper proposes a method for removing numerical dispersion using deep learning. Unlike the conventional optimized algorithms target to optimize the finite difference coefficients, our strategy is based on big data training to eliminate the dispersion data after seismic data modeling. We design a neural network architecture based on cycle-consistent generative adversarial networks (Cycle-GANs) and residual learning for elastic wave propagation. Under the premise of not significantly increasing the calculation time, we can obtain higher calculation accuracy. Compared with the high-order finite difference algorithm, the calculation time is the advantage of our proposed deep learning method. Tests prove the efficiency and stability of our proposed algorithm.
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一种利用r - cycle gan网络消除弹性波模型数值色散的新方法
有限差分正演模拟在地球物理勘探和油田中得到了广泛的应用。由于其在图形处理单元上的高效率和易于应用,受到了工业界和学术界的广泛关注。然而,由于诸多因素的影响,数值色散问题一直是阻碍该方法发展的重要因素。为了克服数值色散,本文提出了一种利用深度学习消除数值色散的方法。与传统的优化算法以优化有限差分系数为目标不同,我们的策略是基于大数据训练来消除地震数据建模后的分散数据。我们设计了一个基于循环一致生成对抗网络(Cycle-GANs)和残差学习的弹性波传播神经网络架构。在不显著增加计算时间的前提下,可以获得较高的计算精度。与高阶有限差分算法相比,计算时间短是我们提出的深度学习方法的优势。实验证明了该算法的有效性和稳定性。
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来源期刊
Journal of Geophysics and Engineering
Journal of Geophysics and Engineering 工程技术-地球化学与地球物理
CiteScore
2.50
自引率
21.40%
发文量
87
审稿时长
4 months
期刊介绍: Journal of Geophysics and Engineering aims to promote research and developments in geophysics and related areas of engineering. It has a predominantly applied science and engineering focus, but solicits and accepts high-quality contributions in all earth-physics disciplines, including geodynamics, natural and controlled-source seismology, oil, gas and mineral exploration, petrophysics and reservoir geophysics. The journal covers those aspects of engineering that are closely related to geophysics, or on the targets and problems that geophysics addresses. Typically, this is engineering focused on the subsurface, particularly petroleum engineering, rock mechanics, geophysical software engineering, drilling technology, remote sensing, instrumentation and sensor design.
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