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Figure 3: (a) Crossplot of PI and PDF attributes derived from post-stack joint inversion along an arbitrary line that passes through the different wells over a zone that covers the Duvernay formation. Blue polygon encloses points with low PI and high PDF seen on well-log data for the Duvernay formation. Points enclosed by red polygon show lower values of PI and higher values of PDF than the values of points enclosed by blue polygon. (b) Back projection of these two polygons shows the prospective zone in the Duvernay shale.
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Figure 3: (a) Crossplot of PI and PDF attributes derived from post-stack joint inversion along an arbitrary line that passes through the different wells over a zone that covers the Duvernay formation. Blue polygon encloses points with low PI and high PDF seen on well-log data for the Duvernay formation. Points enclosed by red polygon show lower values of PI and higher values of PDF than the values of points enclosed by blue polygon. (b) Back projection of these two polygons shows the prospective zone in the Duvernay shale.