Fast 3D migration-velocity analysis by wavefield extrapolation using the prestack exploding-reflector model
نویسندگان
چکیده
منابع مشابه
Fast 3D migration-velocity analysis by wavefield extrapolation using the prestack exploding-reflector model
In areas of complex geology, migration-velocity estimation should use methods that describe the complexity of wavefield propagation, such as focusing and defocusing, multipathing, and frequency-dependent velocity sensitivity. Migration-velocity analysis by wavefield extrapolation has the ability to address these issues because, in contrast to ray-based methods, it uses wavefields as carriers of...
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An accurate depth-velocity model is the key for obtaining good quality and reliable depth images in areas of complex geology. In such areas, velocity-model definition should use methods that describe the complexity of wavefield propagation, such as focusing and defocus ing, multiple arrivals, and frequency-dependent velocity sensitivity. Wave-equation tomography in the image space has the abili...
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ژورنال
عنوان ژورنال: GEOPHYSICS
سال: 2011
ISSN: 0016-8033,1942-2156
DOI: 10.1190/geo2010-0384.1