CONTROL SYSTEM FOR MARINE VIBRATORS OPERATING NEAR IMPULSIVE SEISMIC SIGNAL SOURCES

Techniques are disclosed relating to control of seismic sources such as marine vibrators. According to some embodiments, iterative learning control (ILC) systems may be used to control such seismic sources. According to some embodiments, local sensor(s) placed in, on, or near a seismic source and/or...

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Bibliographische Detailangaben
Hauptverfasser: GUNNARSSON, Per Birger, KRÖLING, Nils Gunnar Olof, BERNHARDSSON, Bo Magnus
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:Techniques are disclosed relating to control of seismic sources such as marine vibrators. According to some embodiments, iterative learning control (ILC) systems may be used to control such seismic sources. According to some embodiments, local sensor(s) placed in, on, or near a seismic source and/or remote sensors placed in the far-field region may be used to determine a transfer function for the seismic source for such ILC control. A sensor is configured to measure the acoustic output of the marine vibrator along with signal pulses from at least one impulsive seismic signal source. The ILC is disabled when it is determined that the impulsive seismic is active based on the sensor measurements.