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- W2002572071 abstract "Summary Prestack depth imaging can be used to obtain a more accurate image of the earth’s subsurface in complex geologic areas. Prestack depth imaging relies on a correct interval velocity/depth model. We show two methods of obtaining a 3D velocity model in the Southern Gas Basin of the North Sea. In the first method a 3D velocity model is created by interpolating a series of 2D velocity models derived from iterative 2D tomography and prestack depth migration. In the second method an initial model is created using 3D coherency inversion. 3D tomography is then used to update the velocity model with a sparse set of CIP gathers. The 3D model building procedure is faster and yields a more accurate 3D velocity model than the 2D method." @default.
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- W2002572071 date "1998-01-01" @default.
- W2002572071 modified "2023-09-28" @default.
- W2002572071 title "3D interval velocity/depth model building in the Southern Gas Basin UK, 3D versus 2D model building" @default.
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- W2002572071 doi "https://doi.org/10.1190/1.1820551" @default.
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