Seismic interpretations today demand the extraction of more geologic information than just structure; we want to understand stratigraphic bodies, identify hydrocarbon accumulations, and study lateral variability in reservoirs. Thus, it is imperative that we understand the wavelet as that is the critical link between seismic character and geologic detail. Most people agree that the zero-phase wavelet is the most optimal, and hence data processing routinely aims to convert the minimum phase recorded data to zero phase for interpretation.

We must know the polarity of this zero-phase data to understand which reflections indicate increases and which indicate decreases in acoustic impedance,...

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