Method and system for controlling the moments of firing of...

Details Method and system for controlling the moments of firing of... Method and system for controlling the moments of firing of...

G - Physics

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G01V 1/133 (2006.01) G01V 1/02 (2006.01) G01V 1/06 (2006.01) G01V 1/38 (2006.01)

Patent

CA 1220542

K 9621 CAN A B S T R A C T A METHOD AND SYSTEM FOR CONTROLLING THE MOMENTS OF FIRING OF MARINE SEISMIC SOURCES A method for controlling the moments of firing a number of at least two marine seismic sources which are towed as a seismic array behind a towing vessel, said marine seismic sources being adapted to create seismic pulses after having been fired, said method comprising the steps of measuring and determining physical quantities representing the instantaneous operating depths of the individual seismic sources of the array; transmitting the values of said quantities to a source controlling means; comparing the depth values thus obtained with predetermined depth values, and, if the said determined depth values are different from a preset depth value, adjusting the set points in time at which the seismic sources of the seismic array should generate their acoustic outputs in relation to the measured instantaneous depth values. System for carrying out the said method. VRH04

463282

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