3D Modeling of Carbonate Rock Porous Media and Estimation of Petrophysical Parameters

Pre-salt carbonate reservoirs represent a great opportunity for the Brazilian technological development and for national and international companies that are involved in oil industry. This giant discovery consists of heterogeneous carbonate rocks found underneath a layer of salt with variable thickness (around 2.000 meters) and spread over very large areas. Due to its huge complexity, understanding their petrophysical parameters and flow properties is fundamental and a major challenge. To overcome the difficulties, the concept of Digital Rock Physics (DRP) has been explored as a methodology that complements the traditional experimental analysis of rock samples. DRP allows to image real rocks in three-dimensional with high accuracy and resolution and to perform several virtual simulations. This papers aims to present a method that was developed to reconstruct porous systems and estimate porosity and specific surface area from coquinas samples, analogue carbonates samples to Brazilian pre-salt.