Method and system for separating seismic sources in marine simultaneous shooting acquisition

Patent metadata

Field	Value
Publication number	US-9075162-B2
Application number	US-201113293832-A
Country	US
Kind code	B2
Filing date	Nov 10, 2011
Priority date	Nov 10, 2011
Publication date	Jul 7, 2015
Grant date	Jul 7, 2015

Abstract

Seismic data are obtained by recording simultaneously in seismic streamers, acquired by activating approximately simultaneously two or more seismic sources towed at two positions in the vicinity of seismic streamers. A residual is updated iteratively for an inversion solution for the activations of the two or more seismic sources. The iterative updating of the residual utilizes a sequence of overlapping temporal windows containing reflection events and utilizes normal moveout corrections based on largest reflection events in each temporal window. A final updated residual is added to a final updated model result.

First claim

We claim:

1. A method for separating effects of multiple seismic sources in simultaneous shooting acquisition, comprising:
obtaining blended seismic data recorded simultaneously in seismic streamers, acquired by activating approximately simultaneously two or more seismic sources towed at two or more positions in the vicinity of the seismic streamers;
for each activation of the two or more seismic sources,
calculating predicted blended seismic data as a product of a time delay-b…

Assignees

• Baardman Rolf H
• Van Borselen Roald G
• Pgs Geophysical As

Inventors

• Baardman Rolf H
• Van Borselen Roald G

Classifications

• G01V2210/324

  Physics · mapped topic

• G01V1/3861

  Physics · mapped topic

• G01V2210/56

  Physics · mapped topic

• G01V1/3808 Primary

  Physics · mapped topic

• G01V1/36 Primary

  Physics · mapped topic