2019
DOI: 10.1190/geo2017-0850.1
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Joint least-squares reverse time migration of primary and prismatic waves

Abstract: Direct imaging of the steeply dipping structures is challenging for conventional reverse time migration (RTM), especially when there are no strong reflectors in the migration velocity model. To address this issue, we have enhanced the imaging of the steeply dipping structures by incorporating the prismatic waves. We formulate the imaging problem in a nonlinear least-squares optimization framework because the prismatic waves cannot be linearly mapped from the model perturbation. Primary and prismatic waves are … Show more

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Cited by 18 publications
(6 citation statements)
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References 25 publications
(34 reference statements)
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“…For more details, please refer to Kryvohuz and Kuehl (2019), Yang et al. (2019) and Wu et al. (2022).…”
Section: Methodsmentioning
confidence: 99%
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“…For more details, please refer to Kryvohuz and Kuehl (2019), Yang et al. (2019) and Wu et al. (2022).…”
Section: Methodsmentioning
confidence: 99%
“…The adjoint analysis of Equation ( 7) gives the following conventional prismatic imaging condition (Yang et al, 2019):…”
Section: Methodology Formulation Of Primary and Prismatic Imaging Con...mentioning
confidence: 99%
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“…; Yang et al . ). Data‐domain seismic tomography techniques recover subsurface material properties by minimizing an objective function built from the residuals between observed data and data calculated for an assumed (initial or updated) model, and minimizing this objective function is a non‐linear problem.…”
Section: Introductionmentioning
confidence: 97%