公开(公告)号：US10330809B2

公开(公告)日：2019-06-25

申请号：US14888168

申请日：2014-04-30

Applicant: CGG Services SA

Inventor： Henning Hoeber ,  Adel Khalil ,  Erik Hicks

IPC: G01V1/38 ,  G01V1/36 ,  G01V1/28 ,  G01J1/36 ,  G01V1/30

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.