Pore Architecture Characterization of a Basinal Tight Carbonate: an example from an Aptian Reservoir in the Bab Basin of the Middle East

M.E. Alsuwaidi¹, J.F. Sarg¹, H. Kazemi¹, T. Steuber², and M. Moge³

Abstract

The majority of carbonate reservoir rocks have been developed using conventional development schemes, due to the presence of macropores that are product of skeletal and non-skeletal allochems as well as diagenesis. In this study, the main focus is basinal carbonate reservoir rocks that lack macropores, but contain pores that are less than a micrometer in size. These rocks have high hydrocarbon saturation within the matrix microporosity, and are found in a structural trap in the Middle East. However, permeability is low and reaches a maximum of only 3 mD, as a result of the small pore sizes.

AAPG Search and Discovery Article #90188 ©GEO-2014, 11th Middle East Geosciences Conference and Exhibition, 10-12 March 2014, Manama, Bahrain