Two-phase deposits: Methodology approach to the identification of composition and pVT properties of reservoir hydrocarbon fluids using limited initial information
Abstract
The paper describes a scientific and methodical approach to the restoration of reservoir oil composition and pVT-properties according to data on the composition of dissolved gas and the gas factor on the stages of the field separation system and the density of the stock tank oil. Based on the identified composition of the reservoir oil, the PVT-model that adequately reproduces the results of laboratory and field studies is created. The composition of the free gas cap is identified as a result of vapor/liquid equilibrium mathematical simulation using equation of state. The created pVT-models of formation oil and gas condensate mixture can be used in the design and monitoring of reservoir development using modern hydrodynamic simulators based on Black Oil or/and compositional approach. The application of the suggested method is illustrated for the real deposit.
About the Authors
A. I. Brusilovskiy
LLC “Gazpromneft STC”
Russian Federation
Russian Federation
Moscow
T. S. Yushchenko
Moscow Institute of Physics & Technology (State University)
Russian Federation
Russian Federation
Moscow
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Review
For citations:
Brusilovskiy A.I., Yushchenko T.S. Two-phase deposits: Methodology approach to the identification of composition and pVT properties of reservoir hydrocarbon fluids using limited initial information. PROneft. Professionally about Oil. 2016;(1):68-74. (In Russ.)
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