Angle‐domain common‐image gathers for migration velocity analysis by wavefield‐continuation imaging
نویسندگان
چکیده
منابع مشابه
Angle-domain common-image gathers for migration velocity analysis by wavefield-continuation imaging
We analyze the kinematic properties of offset-domain Common Image Gathers (CIGs) and Angle-Domain CIGs (ADCIGs) computed by wavefield-continuation migration. Our results are valid regardless of whether the CIGs were obtained by using the correct migration velocity. They thus can be used as a theoretical basis for developing Migration Velocity Analysis (MVA) methods that exploit the velocity inf...
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Velocity models can be automatically updated by differential semblance velocity analysis (DSVA). To overcome the dip limitations associated with the one-way wave equation based imaging algorithms, we propose in this study that the common image gathers can be defined other than in horizontal offset domain within the reverse time migration(RTM) framework, where two-way wave equation is solved as ...
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ژورنال
عنوان ژورنال: GEOPHYSICS
سال: 2004
ISSN: 0016-8033,1942-2156
DOI: 10.1190/1.1801945