Interpretation of seismic data for structure and stratigraphy is commonly based on the geological knowledge of the area and the correlation of seismic reflections with well-log data. However, the relation between the seismic image and the well-log data is not straightforward, being often obscured by the wave-propagation phenomenon. Part of the problem is that reflectivities do not measure the interval properties but result from the property contrasts of consecutive strata. Seismic inversion provides insight into the interpretation process, transforming reflection amplitudes into physically meaningful variations in interval properties, which can be directly related to the well-log data after appropriate scale considerations.

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