THE EFFECT OF CLAY MINERALS ON RESERVOIR CHARACTERIZATION AND PERFORMANCE

Clay minerals are fine-grained which compose of aluminium silicate structure. There are four main groups of clay minerals which are kaolinite, illite, smectite and chlorite. The effect of clay minerals on formation evaluation and reservoir performance depend on its morphology, cation exchange capacity and swelling properties. The occurrence of clay minerals leads to inaccurate values of porosity, water saturation and permeability. In addition, the impacts of clay minerals during drilling, water injection and acid stimulation are investigated as it can lead formation damage near wellbore. The current project aims investigate the effect of clay minerals on logs response and reservoir characteristics in term of porosity, permeability and water saturation, and to compare its impact on reservoir performance against reported works