Rock physics incorporating both fluid changes and pressure depletion

A Rock Physics Based Time-lapse Feasibility Workflow Calibrated To Core Measurements Which Incorporates Both Fluid Changes And Pressure Depletion


In this paper we discuss how the pressure depletion effects the 4D signal using a calibrated rock physics model.

The conclusion is that the pressure effect can be as significant as the effect caused by changing the pore fluids. This effect should not be overlooked in 4D modelling.