SOURCE FOR MARINE SEISMIC ACQUISITION AND METHOD
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United States of America Patent
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Dec 22, 2016
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Oct 19, 2011
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Abstract
A method for generating acoustic waves under water includes actuating first and second pistons with an actuator system provided inside an enclosure of a source element, to generate a wave having a first frequency, and actuating the first and second pistons with a pressure mechanism attached to the enclosure, to control a pressure of a fluid inside the enclosure such that a pressure of the fluid is substantially equal to an ambient pressure of the enclosure. The enclosure has first and second openings and the first and second pistons are configured to close the first and second openings.
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