Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"Prestack Depth Migration"”.
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Building Velocity Models for Steep-Dip Prestack Depth Migration through First Arrival Traveltime Tomography
… to do so requires appropriate data acquisition, prestack depth migration, and an excellent seismic velocity model. Poststack time migrated seismic images, normal moveout velocity analysis, well logs, and other geologic information are used to build the velocity model. In regions of interest …
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Seismic Imaging of a Granitoid-Greenstone Boundary in the Paleoarchean Pilbara Craton
… these data were reprocessed using 2D Kirchhoff prestack depth migration to include vertical dips. The western half of the migrated section images a granitoid dome with weak to no reflectivity that extends deeper than 4 km. The eastern half images 2-3 km of layered volcanic rocks of the Fortescue …
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Tectonics of the West Iberia continental margin from seismic reflection data
… for the variability of the ridge along strike. Prestack depth migration of a 340 km long seismic reflection profile across the margin served as the basis for stratigraphic interpretation. The proximal margin displays horsts and grabens, with 1--2 km thick synrift deposits from Early Cretaceous …
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Derivation of Acoustic and Physical Properties from High-Resolution Seismic Reflection Data
… seismic data using iterative Kirchhoff prestack depth migration, Burg deconvolution and F-K filtering; velocities were derived using migration velocity analysis. Additionally, a method was developed to obtain the streamer depth profile from the surface ghost. The Solent study proved that …