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US 2008/0175102 A1Published application
Method for detecting air gun faults in a marine seismic source array
AssigneePGS Geophysical AS
InventorsStian Hegna, Anthony James Day, Gregory Ernest Parkes
Life of this patent
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Abstract
A method for determining a fault in a seismic air gun includes comparing a near field seismic signal measured during operation of the air gun to a reference near field signal and determining the existence of a fault in the air gun when a difference between the measured near field signal and the reference near field signal exceeds a selected threshold.
Claims19
A method for determining a fault in a seismic air gun, comprising:
- comparing a near field seismic signal measured during operation of the air gun to a reference near field signal;
- and
- determining the existence of a fault in the air gun when a difference between the measured near field signal and the reference near field signal exceeds a selected threshold.
A method for seismic surveying, comprising:
- towing at least one air gun array through a body of water, the air gun array including a plurality of air guns and corresponding near field sensors;
- at selected times, actuating the air guns in the at least one array and recording signals generated by the near field sensors;
- comparing the near field signals to corresponding reference signals;
- and
- determining existence of a fault in at least one of the air guns when a difference between the near field signal and the corresponding reference signal exceeds a selected threshold.
2 more elements
Dependencies are inferred from the claim text.