公开(公告)号：US20240184008A1

公开(公告)日：2024-06-06

申请号：US18456862

申请日：2023-08-28

Applicant: CGG SERVICES SAS

Inventor： Gordon POOLE ,  Milad FARSHAD

IPC: G01V1/36

CPC classification number: G01V1/362 ,  G01V2210/59

Abstract: A method for removing multiples m from seismic data d associated with a subsurface, the method including receiving the seismic data d associated with the subsurface, forward propagating the seismic data d into the subsurface to form forward propagated data dΦ; receiving angular dependent reflectivities rθ, associated with an angular range Δθ, in the subsurface, for a given point; generating an angle dependent reflecting wavefield DΦθrθ based on the forward propagated data dΦ and the angular dependent reflectivities rθ; calculating a multiple model ΦDΦθrθ by forward propagating the angle dependent reflecting wavefield DΦθrθ to the receiver; attenuating multiplies m associated with the multiple model, from the seismic data d, by subtraction of the multiple model to calculate demultiple data dd; and generating an image of the subsurface.