Hierarchical Pixel-Based Geostatistical Modeling of Estuarine Reservoir Through Streamline Simulation in Ceuta-Tomoporo Field, West Venezuela

摘要

The geocellular models developed by geostatistical techniques are the key of the integrated studies of reservoirs because they are the link between the geological and dynamic models, where they must represent consistently the heterogeneities described by the geologists and geophysicists in the numeric simulation grid. In addition to the traditional stages required to build a geostatistical model, this case of study involved an evaluation of the dynamic response of several equi-probable geostatistical realizations developed by pixel-based algorithms like Sequential Indicator Simulation[3] (SIS) and Sequential Gaussian Simulation[3] (SGS), obtaining the statistical OOIP. Due to the large number of cells considered in the fine grid, was necessary a streamline besides a finite differences simulator in order to run the model in a reasonable time, stage where was necessary a classical reservoir engineering in order to represent the dynamic behavior.