Patent · US Active

Control system for marine vibrators operating near impulsive seismic signal sources

US11125911B2 · kind B2 · utility

0Cited by

29References

23Claims

0Family size

Assignee

PGS Geophysical AS · NO

Inventors

Bo Bernhardsson · Lund, SE
Nils Gunnar Olof Kröling · Bjärred, SE
Per Birger Gunnarsson · Åseda, SE

Key dates

Filing date	Dec 30, 2014
Grant date	Sep 21, 2021
Priority date	—
Expiry date	Aug 27, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01V2210/1214
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.