Reservoir characterization

Joint-Domain Full Waveform Inversion Avoids Cycle Skipping in Ultrashallow Water

The authors of this paper present a novel joint-domain full waveform inversion framework optimizing travel-time accuracy in both data and model domains.

Fig. 1鈥�(a) Initial model at a typical inline overlaid with its migration result; (b) inverted model using JDFWI for the same inline in (a) overlaid with its migration.
Fig. 1鈥�(a) Initial model at a typical inline overlaid with its migration result; (b) inverted model using JDFWI for the same inline in (a) overlaid with its migration.
Source: SPE 219190.

Full waveform inversion (FWI) is commonly used for high-resolution velocity model building. Conventional FWI with least-squares objective function often suffers from the problem of cycle skipping. This issue becomes prominent in subsurface structures with high complexity, significant deviations between the initial and true models, or a lack of low-frequency content in the data. To address the cycle-skipping problem, the authors present a novel joint-domain full waveform inversion (JDFWI) framework optimizing travel-time accuracy in both data and model domains.

Introduction

Various strategies have been proposed to address cycle skipping.

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原文链接/JPT
Reservoir characterization

Joint-Domain Full Waveform Inversion Avoids Cycle Skipping in Ultrashallow Water

The authors of this paper present a novel joint-domain full waveform inversion framework optimizing travel-time accuracy in both data and model domains.

Fig. 1—(a) Initial model at a typical inline overlaid with its migration result; (b) inverted model using JDFWI for the same inline in (a) overlaid with its migration.
Fig. 1—(a) Initial model at a typical inline overlaid with its migration result; (b) inverted model using JDFWI for the same inline in (a) overlaid with its migration.
Source: SPE 219190.

Full waveform inversion (FWI) is commonly used for high-resolution velocity model building. Conventional FWI with least-squares objective function often suffers from the problem of cycle skipping. This issue becomes prominent in subsurface structures with high complexity, significant deviations between the initial and true models, or a lack of low-frequency content in the data. To address the cycle-skipping problem, the authors present a novel joint-domain full waveform inversion (JDFWI) framework optimizing travel-time accuracy in both data and model domains.

Introduction

Various strategies have been proposed to address cycle skipping.

×
SPE_logo_CMYK_trans_sm.png
Continue Reading with SPE Membership
SPE Members: Please sign in at the top of the page for access to this member-exclusive content. If you are not a member and you find JPT content valuable, we encourage you to become a part of the SPE member community to gain full access.
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