<p>Petrophysics deals mostly with evaluating the reservoir rocks and assessment the pore volume and its connectivity as well as type of fluid content and saturation. It is a very important trend acting as a link between the geological and reservoir engineering studies as well as help in calibrating and improving results of the geophysical studies. It is mostly subdivided into two sub-trends, well logging and core analyses that help greatly in constructing the static model for a given reservoir in integration with the petrography and seismic studies. The field of petrophysics has been developed greatly during the last decades achieving a precise evaluation and matching of the pore spaces in 3-D using many advanced techniques. For the development of the well logging tools, more detailed fractures characterization and accurate permeability measurements have been achieved down hole; whereas for the core analyses, a more precise pore spaces characterization and reservoir simulation in the Laboratory have been improves using the advanced techniques. The new achievements in the core analyses include foundation of new techniques and concepts as (1) pore fabric assignment in 3-D considering the anisotropy of magnetic susceptibility ‘AMS’ in 3-D, spatial anisotropy of the formation resistivity factor measured in 54 directions to calculate the electric pore fabric, and the anisotropy of permeability, (2) Reservoir quality discrimination and reservoir zonation into conductive, super conductive and non-conductive zones, (3) Electric print to estimate the impact of the presence and percentage of some important elements as the Ni content in meteorites, and TOC in coal samples by measuring the electric resistivity of their samples at different frequencies (1 Hz–8.0 MHz), (4) Accurate Archie’s parameters estimation, (5) Pore throat characterization using MICP tests (mercury injection capillary pressure), (6) Wettability using Amott index, (7) Relative permeability as a tool for characterizing the reservoir and fluids properties in a given sequence, (8) Computed tomography X-ray (CT Scan) for detecting the fractures and capillarity of rocks, and (9) Nuclear magnetic resonance (NMR) for estimating porosity, bound water, permeability, and shale volume. Indeed, petrophysical core analyses data are the most recent and advanced tools for getting a precise reservoir characterization.</p>