Abstract: Methods of conducting perforation and hydraulic fracturing operations in a subterranean wellbore by analysis of rock samples collected during drilling of the borehole. The rock samples can be analyzed on-site or off-site to characterize the connected porosity of the rock of the frac stages of the wellbore, enabling identification of the frac stages with the highest connected Porosity. The perforation and fracking procedures of higher-quality (high connected porosity) stages of the wellbore are prioritized over the poorer-quality (low connected porosity) stages, thereby enhancing oil and/or gas recovery from the subterranean formation, and reducing costs by avoiding frac stages which will be low producers due to their low connected porosity values.