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Rock physics

The term Rock physics contains the range of techniques that relate the geological properties (e.g. porosity, lithology, saturation) of a rock at certain physical conditions (e.g. pressure, temperature) with the corresponding elastic and seismic properties (e.g. elastic modulus, velocity, impedance). The techniques can be used for rock physics modelling, i.e. to predict the elastic (seismic) properties from the geology, or for rock physics inversion, i.e. to predict geology from elastic (seismic) observations.


Rock physics modelling is frequently used in conjunction with well log data, either to help classify well log measurements or to predict geophysical logs based on geological measurements. The latter is particularly useful when analysing 4D seismic as the rock physics models allows the consistent prediction of properties at other production states.


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