Reservoir Fluids Model for a Middle Eastern Sandstone Reservoir
Iraqi Journal of Oil and Gas Research (IJOGR)(2021)
摘要
Knowledge of the properties of reservoir fluids are very important in petroleum reservoir engineering (e.g.estimation of reserves in an oil reservoir, well test inflow performance calculations, and numerical reservoir simulation).The process of obtaining accurate values for these physical properties for hydrocarbon is most important in different oil industries.The main resource to get these properties is laboratory measurements but in many cases these measurements not available, thus other methods can be used to estimate these properties.This paper concerns with the prediction of the phase behavior and physical properties for a Middle Eastern sandstone reservoir by using multiphase equilibrium and properties determination program.Soave-Redlich-Kwong Equation of State & Peng-Robinson's Equation of State and its modifications have been used to calculate the physical properties of reservoir fluid.To do so, each laboratory experiment was first simulated with the cubic Peng Robinson EOS without performing any regression and compared to the laboratory observations (PVT) as primarily results.Then splitting and lumping processes were used to tune or characterize the EOS so that it can reproduce the PVT experiments.The calculated PVT properties from these two steps are compared with the measured PVT data and the results show that the splitting and lumping processes given a good accuracy in predicting the PVT properties of the sandstone reservoir.
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关键词
Reservoir Simulation,Shale Gas Reservoirs,Unconventional Reservoirs,Production Forecasting
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