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- W2063084200 abstract "Historically, shallow well-imaged reservoirs have supported the exploration and production programs of many regions around the world. As these easy?? fields are depleted, industry is moving to deeper and more geologically complex areas to explore. Over the past decade, many subsalt fields have been discovered and are entering the appraisal and development phases. With the transition from exploration to appraisal and development comes the need for improved and more accurate subsurface characterization. Salt, often many thousands of meters thick, such as that found in the canopies of the Gulf of Mexico and the autochthonous salt layers of offshore Brazil and Angola, present numerous challenges ranging from drilling and reservoir management to seismic imaging. Presalt seismic data are notorious for their low frequency content, multiple contamination, and poorly constrained velocities. These limitations make characterization of key reservoir uncertainties, such as faulting, compartmentalization and overall structural geometry, an onerous undertaking at best. Recently, industry has recognized step-change improvements in subsurface imaging in deepwater subsalt settings, particularly in the Gulf of Mexico, with advances such as wide-azimuth acquisition (Fig. 1), model-based or interactive velocity analysis, and two-way depth migration algorithms (Fig. 2)." @default.
- W2063084200 created "2016-06-24" @default.
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- W2063084200 date "2011-05-02" @default.
- W2063084200 modified "2023-09-23" @default.
- W2063084200 title "The Geophysics and Geology of Emerging Techniques in Subsalt Imaging" @default.
- W2063084200 doi "https://doi.org/10.4043/21938-ms" @default.
- W2063084200 hasPublicationYear "2011" @default.
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