Pneumatic control for marine seismic source and method
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United States of America Patent
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Nov 29, 2016
Grant Date -
Dec 31, 2015
app pub date -
Dec 19, 2014
filing date -
Jun 30, 2014
priority date (Note) -
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Abstract
Method, source and shuttle configured to generate acoustic waves under water. The shuttle includes a firing piston closing a firing chamber and contributing to holding the compressed gas, and a transitional region connected to the firing piston. The firing chamber and the transitional region define a most restrictive area through which the compressed gas is released toward the at least one exhaust port, the most restrictive area is substantially smooth while the movable shuttle moves toward the open position, and a profile of the transitional region is selected to reduce a high-frequency content of the acoustic waves.
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