Method and device for detecting faults in a marine source array

A marine source array evaluation apparatus configured to analyze data related to a marine source array including individual pressure wave sources configured to generate waves underwater, and sensors associated with the individual wave sources configured to acquire near-field data related to the waves generated by the individual wave sources, the sensors being placed near of the individual wave sources, the apparatus comprising:

• a near-field data processing unit configured
• to generate an index for each of the individual wave sources based on (A) the near-field data and (B) information on geometry of the marine source array that enables localizing (i) the individual wave sources and (ii) respective sensors relative to one another;
• and
• to compare the index for each of the individual wave sources with a corresponding reference index for determining whether a fault has occurred.

A computer readable media non-transitorily storing executable codes which when executed on a computer make the computer perform a method for detecting individual source faults in a marine source array, the method comprising:

• acquiring near-field data using sensors, the sensors being located near the individual wave sources;
• generating an index for each of the individual wave sources based on (A) the near-field data and (B) information on geometry of the marine source array that enables localizing (i) the individual wave sources and (ii) respective sensors relative to one another;
• and
• comparing the index for each of the individual wave sources with a corresponding reference index for determining whether a fault has occurred,
• wherein
• the near-field data is acquired for individual wave sources using sensors, one of the sensors being placed near of each of the individual wave sources, and
• the information on the geometry of the marine source enables localizing the individual wave sources and the sensors relative to one another.