TABLE OF CONTENTS This appendix summarizes an approach to building an integrated reservoir model based upon geological, geophysical, petrophysical, and engineering data, as described in reference. [1]
The reservoir model is not just an engineering or a geoscience model; rather it is an integrated model, prepared jointly by geoscientists and engineers. The integrated reservoir model requires a thorough knowledge of the geology, rock and fluid properties, fluid flow and recovery mechanisms, drilling and well completions, and past production performance.
The geological model is derived by extending localized core and log measurements to the full reservoir using many technologies such as geophysics, mineralogy, depositional environment, and diagenesis. The geological model (particularly the definition of geological units and their continuity and compartmentalization) is an integral part of geostatistical and ultimately reservoir simulation models.
The economic viability of a petroleum recovery project is greatly influenced by the reservoir production performance under the current and future operating conditions. Therefore, the evaluation of the past and present reservoir performance and the forecast of its future behavior is an essential aspect of the reservoir management process. Classical volumetric, material balance and decline curve analysis methods, and high-technology, black oil, compositional and enhanced oil recovery numerical simulators are used for analyzing reservoir performance and estimating reserves. The accuracy of the results is dictated by the quality of the reservoir model used to make reservoir performance analysis.
As opposed to one reservoir life, the simulator can simulate many lives for the reservoir under different scenarios and thus...
