Methods and systems to operate marine sources to avoid air in water effects

摘要

In order to avoid complicated and unpredictable effects on the wavefields emitted by air guns activated at different times, methods and systems of the current disclosure are directed to computationally designing a sequence for activating subsets of air guns in a time distributed manner that minimizes the effects of air in the water surrounding the source. The sequence may be used with discrete and continuously recorded marine surveys. compute sequence of sub-sources read sub-source from list of 1701 available sub-sources [compute coordinate locations 1702 of sub-source(s) added to the Of sequence compute coordinate locations of air/water volumes 1703 produced by sub-source(s) at the coordinate locations compute location for 1704 activation of sub-source compute cone of emission for 1705 IC sub-source contamination add sub-source to sequence 1707 of sub-sources Remove sub-source from list 1708 of available sub-sources Y anymore 1709 sub-sources return FIG. 17