The seismic sand curve revisited

A sand curve described [Formula: see text] ago has been in continuous use by Saudi Aramco for seismic data processing in dune areas of the Rub Al-Khali. Refraction field methods behind this sand curve have many potential uncertainties. Recent laboratory data on dry sand similar to that in Saudi Arabia allows the calculation of a new sand curve for comparison. The result is a remarkable level of agreement based on two very different kinds of measurement, giving added confidence and refinement to the venerable sand curve.