DIW based reflection full waveform inversion and its application of land data

IF 1.6 3区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS
Guanghui Hu, Wencai Xu, Binghong He, Weiguang He, Zeyuan Du, Jiashun Yao
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引用次数: 0

Abstract

Abstract The exploration zone in Northwest China poses unique challenges due to its complex structures, fractured blocks, deep reservoirs, and geological anomalies. Conventional velocity modeling and migration imaging methods face difficulties in accurately imaging the underlying reservoirs beneath abnormal rock formations, resulting in poor signal-to-noise ratio and resolution. Moreover, the seismic data quality often falls short, leading to unfocused images. To address these challenges, we propose a novel approach: dynamic image warping-based reflection full waveform inversion. This method combines a model regularization strategy and structural constraints to generate high-resolution velocity models. The application in the Taha Industrial Zone demonstrates that the proposed method effectively characterizes the velocity characteristics of special geological bodies, such as deep weathering crusts, improving imaging effects and resolution, which allows for a more precise understanding of the complex geological features.
基于DIW的反射全波形反演及其在陆地数据中的应用
西北探区构造复杂,裂缝性块体多,储层深,地质异常多,面临着独特的挑战。常规的速度建模和偏移成像方法难以准确成像异常岩层下伏储层,导致信噪比和分辨率较差。此外,地震数据质量往往不高,导致图像不聚焦。为了解决这些挑战,我们提出了一种新的方法:基于动态图像扭曲的反射全波形反演。该方法结合模型正则化策略和结构约束生成高分辨率速度模型。在塔哈工业区的应用表明,该方法有效表征了深层风化壳等特殊地质体的速度特征,提高了成像效果和分辨率,可以更准确地了解复杂的地质特征。
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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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