Modelling the impact of depositional and diagenetic processes on reservoir properties of the crystal-shrub limestones in the 'Pre-Salt' Barra Velha Formation, Santos Basin, Brazil

摘要

The Cretaceous Barra Velha Formation ('Pre-Salt') of the Santos Basin, Brazil, includes lacustrine crystal-shrub limestones which represent important hydrocarbon reservoirs. Neither single nor multi-phase flow behaviour of these unusual fabrics has been modelled to date. Here we quantify the impact of depositional and diagenetic processes on selected reservoir properties of the crystal-shrub limestones using highly flexible 3D synthetic pore-scale models that can explore parameter space. Rather than producing models validated to actual reservoir properties, this seeks to establish trends and identify emergent clustering behaviour.