Systems and methods for removing acquisition related effects from seismic data

Patent metadata

Field	Value
Publication number	US-9329293-B2
Application number	US-201313795661-A
Country	US
Kind code	B2
Filing date	Mar 12, 2013
Priority date	Mar 12, 2013
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

Systems and methods for operating a seismic source to attenuate shot generated noise, or residual energy from previous activation of the source, in recorded seismic data are described. In one aspect, methods operate a single seismic source towed through a body of water along a survey track. As the survey vessel travels along the survey track, the source is activated at the end of randomly selected time delays, resulting in attenuation of shot generated noise. The method also attenuates other forms of coherent noise that align from shot to shot.

First claim

The invention claimed is:

1. A method for operating a seismic source towed by a survey vessel, the method comprising:
activating the source more than once, wherein each activation of the source following a previous activation of the source includes,
randomly selecting a time delay in a randomization window;
allowing a waiting period to elapse;
allowing the time delay to elapse after the waiting period; and
activating the source when the waiting period and the time delay hav…

Assignees

• Pgs Geophysical As
• Pgs Geophysical As

Inventors

• Parkes Gregg
• Hegna Stian

Classifications

• G01V1/3808 Primary

  Physics · mapped topic

• G01V1/3861 Primary

  Physics · mapped topic

• G01V1/04

  Physics · mapped topic

• Y02A90/30

  Cross-Sectional Technologies · mapped topic