Table 1: Experimental conditions and tabulated data for each sample.

SampleSimple effective stress (MPa) (mD)% permeability drop at 3.45 

TEFB9Pll70.200.0733
TEFB9Pll210.380.1339
TEFB9Pll480.670.2345
TEFB9Pd71.450.5128
MONT212.290.8084
TEF21212.370.8376
B5FD1B671.270.4429
B5FD2A2210.970.3444

difference between predicted permeability and measured ethane gas permeability at 3.45 MPa mean pore pressure.