SEISMIC DATA PROCESSING INCLUDING TRUE-AZIMUTH THREE-DIMENSIONAL INTERNAL MULTIPLE ATTENTUATION WITHOUT SUBSURFACE INFORMATION
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United States of America Patent
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Issued Date -
Jul 17, 2014
app pub date -
Jan 10, 2014
filing date -
Jan 15, 2013
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Abstract
A system and method are provided for substantially eliminating an influence of true-azimuth three dimensional (3D) internal multiple reflections in determining undersea geography in a geographical area of interest without a priori knowledge of subsurface information. The system and method define a set of upper windows that include a geographical area of interest, and a pair of lower windows that are below the set of upper windows, define a first set of apertures and a second set of apertures, segment seismic data to each of the windows using the first and second sets of apertures, and determine a total internal 3D multiple model based on an iteratively generated internal 3D multiple model using the segmented seismic data.
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