Proposal for a polychromatic seismic survey

Charles P. Ursenbach, John C. Bancroft, Malcolm B. Bertram, Henry C. Bland, Arnim B. Haase, Don C. Lawton, Gary F. Margrave and Robert R. Stewart

ABSTRACT

Monofrequency data can in principle be obtained from vibrator sources. Several monochromatic sweeps at various discrete frequencies may be collectively termed a polychromatic survey. The primary motivation for a polychromatic survey is to generate benchmark data to help develop methods for extracting Q from surface seismic. Other possible applications include benchmarking nonstationary transforms, extracting time-traces with novel wavelets, obtaining signal in noisy environments and to experiment with new methods for obtaining subsurface images. An initial survey is proposed over a shallow oilfield with both surface and VSP receivers.

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