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Acquisition and processing pitfall associated with the clipping of near-surface seismic reflection traces
Sloan, Steven D. Steeples, Don W. Malin, Peter E.
Sloan, Steven D.
Steeples, Don W.
Malin, Peter E.
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Abstract
The processing of clipped seismic traces may produce high-frequency wavelets that can be misinterpreted as reflections in filtered shot gathers and common-midpoint (CMP) stacked sections. To illustrate this effect, a near-surface CMP seismic reflection survey was conducted using two sources to compare the effects of various band-pass frequency filters on clipped traces. An event observed in the clipped data set replicated the frequency of the filter operators applied, similar to the effect of convolving a boxcar function with the filter operator. The anomaly exhibited hyperbolic moveout and imitated a reflection during the processing stages. The hyperbolic event was flattened by NMO corrections chosen for the target reflection, and it stacked in as a coherent event in the final section. Clipped data should be removed or corrected before processing to prevent misinterpreting high-frequency reflection artifacts in trace gathers and stacked sections.
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This is the publisher's version, also available electronically from "http://library.seg.org".
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2008-01-01
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Society of Exploration Geophysicists
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Steven D. Sloan, Don W. Steeples, and Peter E. Malin (2008). ”Acquisition and processing pitfall associated with clipping near-surface seismic reflection traces.” Acquisition and processing pitfall associated with clipping near-surface seismic reflection traces, 73(1), W1-W5, http://www.dx.doi.org/10.1190/1.2807051