Presenter: Marcin Duda, NTNU
We present results of laboratory experiments indicating strong correlation between the values of the poroelastic parameters and the ratio between elastic and total axial strains, a relationship that can prove to be very useful in modelling of pore pressure response in shales in the direct proximity of faults.
Finally, we show a case of transition of unloading-induced pore pressure change from negative to positive values in the constant mean stress conditions, as well as gradual deviation of shale behavior from the one expected for a medium with purely elastic TI symmetry.
