3D Pore Scale Characterisation of Carbonate Core: Relating pore types and interconnectivity to petrophysical and multiphase flow properties

Carbonate rocks are diverse and their pore space complex.<br>Large scatter in petrophysical and multiphase properties of<br>carbonates is caused by the variation in pore type, pore<br>interconnectivity and the microporosity. To date the<br>classification of the interconnectivity of the different pore<br>types and pore shapes and their relative contribution to flow,<br>electrical and displacement properties has been made on the<br>basis of visual inspection and 2D thin section analysis. In this<br>paper we present a 3D image and analysis study of a range of<br>carbonate core material at a 3 micron scale. The 3D<br>interconnectivity of the vugs, macropores, and<br>meso/micropores is directly characterized.