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Modern Approaches to Identify the Properties of Reservoir Hydrocarbon Fluids of Two-Phase Deposits (On the Example of the Deposit in Western Siberia)Normal access

Authors: I.O. Promzelev, A.I. Brusilovskiy, D.N. Kuporosov and S.A. Fedorovskiy
Event name: Saint Petersburg 2018
Session: Core and Fluid Analysis
Publication date: 09 April 2018
DOI: 10.3997/2214-4609.201800166
Organisations: EAGE
Language: Russian
Info: Extended abstract, PDF ( 693.31Kb )
Price: € 20

The paper deals with methodical approach to reproduce the properties of saturated reservoir oil, which is in thermodynamic equilibrium with the existing gas cap. The method is based on the integrated application of the results of laboratory experiments and mathematical simulation using equation-of-state method. The results are illustrated on the example of oil reservoir PK1-3 of Vostochno-Messoyakhskoe field. It is confirmed that in the case of partially degassed (nonrepresentative) downhole sample of reservoir hydrocarbon fluid it can be restored by simulating the process opposite to the differential liberation in the reservoir conditions. The described methodical approach is recommended to identify representative composition and PVT properties of reservoir oil of two-phase deposits. It is important for the correct evaluation of the oil and dissolved gas reserves and designing the development of two-phase deposits.

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