Coupled time-distance dependent swept frequency source acquisition design and data de-noising
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United States of America Patent
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Dec 6, 2016
Grant Date -
Nov 15, 2012
app pub date -
May 10, 2012
filing date -
May 13, 2011
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Abstract
Acquisition of data by managing crosstalk interference with sector designs and unique sweeps is conducted and the resultant data are processed in 3D common receiver domain to attenuate crosstalk noise while preserving the signals for high source and receiver density acquisition designs. High-amplitude spectral amplitudes are attenuated and inter-ensemble statics or structural time delays are applied to achieve optimum filter performance. If the spectral amplitudes have been attenuated to a level consistent with non-simultaneous acquisition, conventional surface consistent processing can be performed to correct for statics and amplitude variations. A 3-point filter in different frequency bands may then be applied to remove any remaining residual crosstalk noise.
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