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- W2015963786 abstract "Summary Recent improvements in data acquisition and imaging techniques have significantly enhanced our ability to identify subsalt structures in the deep-water Gulf of Mexico (GOM) and other offshore basins of the world. However, the estimation of sub-salt velocity remains challenging. Our focus here is on the salt-exit velocity—the velocity just below a thick impermeable salt body. The knowledge of salt-exit velocity is critical for predrill prediction of potential overpressure zones below salt and also in developing a velocity model that will correctly delineate the stratigraphic units comprising the reservoir. Previous attempts to predict salt-exit velocity and pore pressure have not fully exploited the benefits of seismic inversion technology. In this paper we apply three different seismic inversion methods to estimate the salt-exit acoustic impedance in a deep-water subsalt basin of GOM and compare the results with those of the available well-log data. The impedance is then converted into velocity using a transform function obtained from impedance and velocity relation from a different location. The salt-exit velocity and impedance then becomes the basis for building a final velocity model for subsalt imaging and pore-pressure prediction." @default.
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- W2015963786 date "2014-01-01" @default.
- W2015963786 modified "2023-09-24" @default.
- W2015963786 title "Application of Seismic Inversion Methods in Salt-exit Velocity Prediction" @default.
- W2015963786 doi "https://doi.org/10.3997/2214-4609.20141339" @default.
- W2015963786 hasPublicationYear "2014" @default.
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