Quantitative analysis of geological attributes for reservoir heterogeneity assessment in carbonate sequences; a case from Permian–Triassic reservoirs of the Persian Gulf

摘要: Abstract This study integrates quantitative analysis of reservoir properties with geological parameters to discriminate the heterogeneities in Permian–Triassic sequences Persian Gulf. To achieve this goal, core samples and thin sections were integrated petrophysical logs porosity–permeability data. For assessment heterogeneity, Coefficient Variation (CV), Dykstra-Parsons (VDP) Lorenz (VLC) used along concept Hydraulic Flow Units (HFU). Depositional facies, diagenetic alterations sequence stratigraphic framework as a basis for interpretation heterogeneities. Accordingly, 14 microfacies types 5 facies belts have been defined indicate low-angle (homoclinal) ramp model. Complex diagenesis history these includes marine, hypersaline shallow deep burial that considerably altered primary distribution properties. A comparison tested methods revealed CV is best approach quantification heterogeneity targeted reservoir. Consequently, K4 K2 are proposed most homogeneous units dominance grain-supported shoal setting, intense effects dissolution lesser effect compaction cementation. The K3 K1 show high levels resulting from combined changes (dolomitization, cementation compaction). Finally, discussed all can be ongoing studies Gulf Middle East.