Device and method for optimization of 4D and 3D seismic data
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United States of America Patent
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Jun 25, 2019
Grant Date -
Apr 21, 2016
app pub date -
Apr 30, 2014
filing date -
May 1, 2013
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Abstract
A method and apparatus for noise attenuation. The method includes receiving seismic data associated with at least two vintages (di, dj) collected for a same subsurface, wherein the first and second vintages (di, dj) are taken at different times; calculating a set of filters (fi, fj) that minimizes an energy function (E), wherein the energy function (E) includes a term representing a 4D difference between the first and second vintages (di, dj); calculating primaries (pi, pj) corresponding to the first and second vintages (di, dj) based on the set of (fi, fj); and calculating a 4D difference (Δij) based on the primaries (pi, pj). The 4D difference (Δij) is minimized.
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