公开(公告)号：US20170199289A1

公开(公告)日：2017-07-13

申请号：US15402830

申请日：2017-01-10

Applicant: CGG SERVICES SAS

Inventor： Can PENG ,  Arash JAFARGANDOMI ,  Henning HOEBER ,  James COOPER ,  Gordon POOLE

IPC: G01V1/36 ,  G01V1/30 ,  G01V1/28

CPC classification number: G01V1/362 ,  G01V1/282 ,  G01V1/307 ,  G01V1/375 ,  G01V2210/512 ,  G01V2210/632

Abstract: Generating spectrally enhanced seismic data expresses seismic data as a convolution of reflectivity and a seismic source wavelet. This seismic source wavelet varies over a sampling interval and defining a total amount of energy over the sampling interval. An enhanced seismic source wavelet that is a single-valued energy spike that yields the total amount of energy over the sampling interval is generated. In addition, the reflectivity is modified to preserve amplitude variation with angle. The reflectivity is convoluted with the enhanced seismic source wavelet and residual energy is added to the convolution to generate the spectrally enhanced seismic data.

公开(公告)号：US20170371055A1

公开(公告)日：2017-12-28

申请号：US15535159

申请日：2015-12-18

Applicant: CGG SERVICES SAS

Inventor： Gordon POOLE ,  Can PENG

IPC: G01V1/37 ,  G01V1/36

CPC classification number: G01V1/375 ,  G01V1/366 ,  G01V1/368 ,  G01V2210/1214 ,  G01V2210/24 ,  G01V2210/3246 ,  G01V2210/614

Abstract: Methods for processing seismic data acquired with non-impulsive moving sources are provided. Some methods remove cross-talk noise from the seismic data using emitted signal data and an underground formation's response estimate, which may be iteratively enhanced. Some methods perform resampling before a spatial or a spatio-temporal inversion. Some methods compensate for source's motion during the inversion, and/or are usable for multiple independently moving sources.