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High-Resolution Imaging and Migration Velocities Estimation for Land Seismic Data, a Full Wavefield Approach
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 86th EAGE Annual Conference & Exhibition, Jun 2025, Volume 2025, p.1 - 5
Abstract
Summary
Major challenges in seismic imaging are the determination of accurate migration velocities and the proper handling of higher-order scattering energy modes. The Joint Migration Inversion (JMI) technology is developed to address these challenges and offers an advanced imaging algorithm that utilizes all energy modes available in the measured seismic data (i.e. primaries and multiples) via an iterative inversion process. Especially for land seismic data, in which surface multiples often play a less dominant role, the internal multiples, mostly generated at strong contrasts in the overburden, create a significant problem in defining and delimitating the reservoir characteristics. Usually, the main issue will be the absence of the primary reflections of the reflectors in the shallow subsurface, which complicates the overall imaging process. In this abstract we present a case-study of the application of the JMI algorithm to a 2D seismic line from the Netherlands. This data-driven approach, where the full wavefield including surface-related and internal multiples, is able to adequately explain and remove the cross-talk of the higher-order scatterings in the deep target areas.
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