Performance Evaluation of Experimental and Simulated Constant Volume Depletion Tests on Gas Condensate Reservoir Fluid

Document Type : Original Article

Authors

1 Department of Petroleum Engineering Rivers State University, Nkpolu-Oroworukwu, Port Harcourt, Nigeria

2 Collage of Science and Technology, School of Science, Engineering and Environment, Petroleum and Gas Division, University of Salford, United Kingdom

Abstract

The performance evaluation of Peng-Robinson Equation of State to satisfactorily simulate constant volume depletion experimental data of gas condensate reservoir fluid system has been presented. Constant volume depletion experiment was performed on a representative gas condensate reservoir fluid sample and the experimental data simulated using tuned Peng-Robinson equation of state on ECLIPSE PVT PRO simulator. Both experimental and simulated results were compared in terms of dew-point pressure, gas density, gas viscosity, gas compressibility factor, and gas formation volume factor. The results show that the simulation results exhibited similar trends as the experimental results. The dew-point pressure from the laboratory data is 4724 psia, while that of the simulation result is 4726.61 psia. This gave an average absolute deviation of 0.2092 %, a satisfactory match to the experimental data. The results presents a quantitative measure of the comparison of simulated and experimental constant volume depletion test, which quantitatively illustrates the capability of equations of state to satisfactorily simulate the constant volume depletion experimental test data – a somewhat contribution to existing body of knowledge.

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