综合高分辨率模型构建:来自阿曼苏丹国的案例研究

M. Farooqui, D. Carotti, M. Al-Jahdhami
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引用次数: 0

摘要

阿曼北部的地质条件对陆地速度模型的建立提出了重大挑战。我们在本文中表明,这些挑战可以通过使用集成的高分辨率速度模型工作流程来克服,通过组合不同类型的波,可以解决速度模型的不同部分。该专用工作流程包括近地表多波反演(MWI),其次是最佳传输全波形反演(OT-FWI),然后是基于射线的联合反射波和潜水波层析反演。它解决了复杂的浅层地质所带来的挑战,并允许对深层结构进行适当的成像。与传统的仅基于射线的模型构建流程相比,集成的高分辨率工作流能够生成地质上合理的速度模型,从而最大限度地减少深度定位误差,并大大增强构造和地层趋势。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Integrated high-resolution model building: a case study from the Sultanate of Oman
Summary The geology of northern Oman presents significant challenges for land velocity model building. We show in this paper that these challenges can be overcome by using an integrated high-resolution velocity model workflow, through the combination of different types of waves, that allow resolving different parts of the velocity model. This dedicated workflow consists of Multi-Wave Inversion (MWI) for the near-surface, followed by Optimal Transport Full Waveform Inversion (OT-FWI) and then by ray-based joint reflected and diving wave tomography inversion. It resolves challenges imposed by complex shallow geology and allows for proper imaging of deeper structures. Compared to a conventional ray-based only model building flow, the integrated high-resolution workflow enabled generating a geologically plausible velocity model which minimizes depth positioning errors and greatly enhances structural and stratigraphic trends.
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