Research note

Derivations of gradients in angle-independent joint migration inversion

Journal article (2019)

Authors

Yimin Sun Aramco Overseas Company B.V.
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Published Date

2019

Language

English

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Abstract

Although joint migration inversion has been proposed for several years, a thorough derivation and description of the involved gradients was not published. In this paper, we derive the gradient of both the angle-independent reflectivity and the velocity in a framework of acoustic angle-independent joint migration inversion. With some further approximations taken, the conclusions shown in previous publications can also be reached from our new derivation.

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