Developing a workflow to represent fractured carbonate reservoirs for simulation models under uncertainties based on flow unit concept

摘要: Description of fractured reservoir rock under uncertainties in a 3D model and integration with simulation is still challenging topic. In particular, mapping the potential zones quality can be very useful for making decisions support development planning. This done through concept flow units. this paper, an integrated approach including Hierarchical Cluster Analysis (HCA), geostatistical modeling uncertainty analysis developed applied to carbonate order integrate on numerical simulation. The workflow begins different HCA methods, performed well-logs three wells, identify units types. Geostatistical techniques are then extend units, petrophysical properties fractures into inter-well area. Finally, combine types generating ensemble models. obtained clusters from methods evaluated by cophenetic coefficient, correlation variation most appropriate clustering method used modeling. We subsequently define static dynamic such as permeability, porosity, net-to-gross, fracture, water-relative fluid properties, compressibility. Discretized Latin Hypercube (DLHG) defined create 200 models which span space. Eventually, base production strategy operational conditions check consistency reliability created UNISIM-II-R (reference model) real known results. Results represent compatibility methodology characterize reservoirs since those consistent reference (used generate models). proposed provides efficient means supporting planning uncertainty.