Complex sentence: Water-wet rocks will for low water saturation values maintain a continuous film along the pore walls making the rock conductive, while oil-wet rocks will have discontinuous droplets of water within then pore space, making the rock less conductive.
Split into simpler sentences: Water-wet rocks will, for low water saturation values, maintain a continuous film along the pore walls making the rock conductive. Oil-wet rocks will have discontinuous droplets of water within the pore space, making the rock less conductive.