Systems and methods for removing acquisition related effects from seismic data

摘要

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.

主权项

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; andactivating the source when the waiting period and the time delay have elapsed.