When it comes to the evaluation of stratigraphic plays, the issue of lateral wavelet stability ranks as an important concern. Interpreters accustomed to working complex structural plays may be inclined to relegate this type of concern to “background noise” status, but the reality is that when decisions to drill hinge on extremely subtle changes in waveform character (“when this front-loaded trough begins to show signs of splitting into a doublet, we've got porosity,” etc.), one cannot afford to be confusing geology with lateral changes in the embedded wavelet. In this short article we describe, and provide a mathematical justification for,...

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