Historically, the Pennsylvanian Morrow Formation has been a challenging target for conventional, compressional wave (P-wave) seismic acquisition. A relatively small acoustic-impedance change associated with the thin, productive sand targets has rendered P-wave data a marginally useful, but not definitive, tool in these regions. To address this problem, three land 3-D/3-C surveys were acquired to investigate the use of modeconverted shear waves (PS waves) in defining and describing these sand channels. The three surveys, although located in different basins, represent a progression in our understanding of survey design, processing, and interpretation using multicomponent reflection seismic.

When applied...

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