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Discovering accurate relations between porosity and seismic wave velocities in porous rocks has been an important topic of rock physics for decades. Such relations, if they actually exist, are critical when seismic and/or sonic data are to be used to infer porosity and porosity-related properties (e.g., permeability, strength, saturation) in situ. These inferences became especially important in recent years, with the rapid development of seismic and sonic methods which are applied to the characterization of heterogeneous reservoirs and recovery monitoring.
Nur et al. (Sun,) studied this question.