Analysis of Reservoir Fluid Modeling Using Simulation Software on Laboratory Samples from Field X
Pradini Rahalintar, Gerry Sasanti, Rosda Agustina La Ambo

Polytechnic of Energy and Mineral Akamigas

Abstract

PVT analysis is the study of fluid volume changes due to pressure at a certain temperature. The purpose of this analysis is to determine the phase behavior and properties of reservoir fluids, both at surface and reservoir conditions. This PVT analysis is conducted using a software with a compositional simulator for detailed simulation, solving the fluid state equations and calculating the interphase fluid properties.

In this study, a Black Oil Model simulation was performed on PVT data from laboratory analysis on samples from Field X to evaluate its capability and accuracy compared to a compositional simulator using various models and scenarios. All reservoir characteristics were kept constant to observe the PVT properties of the fluid in the Black Oil model and Peng-Robinson fluid characterization in the Compositional Simulator.

Subsequently, alignment between experimental and simulation data was performed, followed by a comparison of both. The results showed discrepancies between the experimental and simulation data. This was due to the experimental data being regressed so that the model could accurately represent the PVT model using the EOS Peng-Robinson method.

Keywords: Reservoir fluids, PVT analysis, simulation

Topic: Engineering of Drilling, Production, and production surface and facility