We present a case history of joint inversion of PP and PS reflection seismic data using a weighted stacking technique. Our example comes from Blackfoot Field, owned and operated by PanCanadian Petroleum, in southeastern Alberta, Canada. The exploration target at Blackfoot is a Lower Cretaceous channel system approximately 1.4 km deep (Figure 1).

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These Glauconitic channels, with sand or shale fill, are found throughout the region, and, as there were many episodes of channel formation, can be stacked on top of one another. At Blackfoot, the channel interval is about 40 m thick and 100 m wide. There...

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