Search International and National Patent Collections

1. (WO2017039708) METHOD FOR ATTENUATING MULTIPLES

Pub. No.:    WO/2017/039708    International Application No.:    PCT/US2015/048909
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Wed Sep 09 01:59:59 CEST 2015
IPC: G01V 1/28
G01V 1/30
G01V 1/38
Applicants: WESTERNGECO LLC
SCHLUMBERGER CANADA LIMITED
SCHLUMBERGER TECHNOLOGY B.V.
Inventors: KOSTOV, Clement
WU, Jing
DISHBERGER, Debra McLean
Title: METHOD FOR ATTENUATING MULTIPLES
Abstract:
One embodiment of the present disclosure includes a method for processing seismic data comprising the steps of receiving data representing seismic energy gathered from a formation by a plurality of seismic receivers, wherein the data include primary and multiple data. A copy of the received data is created and compensated to reduce amplitude attenuation effects due to transmission and absorption losses. A multiple prediction algorithm is applied to the received and compensated data to obtain a multiple data prediction. The multiple data prediction is subtracted from the received data to obtain primary data. The primary data is processed to reduce attenuation effects in the received data.