ИСТИНА

We applied an inversion technique to predict porosity and fluid saturation using seismic elastic attributes. The flow-chart includes three stages. At the first stage, the parameters of the rock physics model are inverted. The input data are: results of petrophysical interpretation and well logs with P, S wave velocities and bulk density. At the second stage, the rock physics model with specified parameters is used to invert log elastic attributes (acoustic impedance, shear impedance) into petrophysical properties: porosity and water saturation. At final stage the prediction was made using seismic elastic attributes.