Using NMR to Determine Pore Throat Distribution & Wettability

Having obtained a P_c curve, pore throat distributions can now be calculated using the Washburn equations. The imbibition and secondary drainage curves generated by the NMR P_c measurement also allow USBM wettability to be predicted. Both of these calculations are integrated into the software, and follow as a natural consequence of the NMR P_c data. A further added advantage is that the NMR measurement is non-destructive and can use reservoir fluids and reservoir wettability.