1887

Abstract

Kirchhoff Pre-Stack Depth Migration (PreSDM) can output images according to multiple angle attributes: reflection angles, illumination dip angles, and their combination. The images can be Common Image Gathers (CIG), that is, images corresponding to one or several attributes at a same observation location, or common angle images, that is, structural images for a single angle attribute at a time. Both images and CIGs can be used as interpretive and diagnosis tools. In this paper we demonstrate that the user can perform a selective stacking within a multi-angle CIGs, to produce an improved final image, free of some migration artifacts and undesirable noise. The steered stacking gives more flexibility than migration with a dip model, particularly in presence of multiple dips (faults, terminations, etc.).

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/content/papers/10.3997/2214-4609.201402167
2006-06-12
2020-09-18
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201402167
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