Air release control in seismic energy source air gun

Details Air release control in seismic energy source air gun Air release control in seismic energy source air gun

G - Physics

01

V

349/13, 349/9

G01V 1/00 (2006.01) G01V 1/137 (2006.01)

Patent

CA 1129980

?I-7299 AIR RELEASE CONTROL IN SEISMIC ENERGY SOURCE AIR GUN ABSTRACT OF THE DISCLOSURE Disclosed is a seismic source device, known in the industry as an air gun, having shuttle control for allowing a predetermined discharge of compressed air into water for purposes of seismic exploration. The shuttle is controlled by secondary shuttle means for closing the exhaust ports before all of the compressed air in the firing chamber of the air gun is exhausted. This point of closing the exhaust ports before virtually all of the compressed air is discharged differs from prior art air guns. By preventing further discharge of air, secondary pulses are greatly reduced, thereby enhancing the operation of the entire system. Further, by preventing all the air in the firing chamber from being discharged, the system becomes more efficient and more cost effective.

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