Can permeability be determined from seismic data? This question has been around since Maurice Biot, working for Shell in the 1950s, introduced the idea that seismic waves induce fluid flow in saturated rocks due to fluid-pressure equilibration between the peaks and troughs of a compressional wave (or due to grain accelerations in the case of a shear wave). Biot (1956) established a frequency-dependent analytical relation between permeability and seismic attenuation. However, laboratory, sonic log, crosswell, VSP, and surface seismic have all demonstrated that Biot's predictions often greatly underestimate the measured levels of attenuation—dramatically so for the lower-frequency measurements.

Yet, if...

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