Crude Oil Properties in CFD, Methodology and Case Studies

This presentation was made at the NAFEMS Americas Seminar - Confidence in Engineering Simulation: The Next 10 Years of CAE in Mexico.

What is the future for engineering analysis and simulation in Mexico? Discover innovative engineering simulation processes and tools which are helping companies in Mexico improve production capabilities. Engage with domain experts, industry leaders, and peers in a focused, comprehensive one-day event that covers topics on engineering analysis, simulation, and systems modeling and simulation that every engineer in Mexico should know.

Resource Abstract

With the growing complexity in oil extraction, transport and conditioning systems, engineers face the challenge of understanding and describing physical phenomena as well as designing equipment and processes associated with crude oil production in adverse situations. Currently, numerical simulation tools such as the Computational Fluid Dynamics (CFD) help the engineers to better understand the physical processes that take place inside equipment or installations where a direct visualization is not possible. It also allows the engineers to design equipment with virtual prototypes, reducing costs with respect to conventional design methods and saving resources, and it even can be used for the optimization of the equipment/processes previously designed.

However, in order to build the numerical models in CFD, it is necessary to incorporate all the information of the equipment that will be used in a given process as well as the information of the properties of the fluids that will be processed.

The properties of reservoir fluids are very diverse, and can change with the location of the production field and even over time. Therefore, in order to be able to construct a realistic CFD model, the implementation of the physical models that describe properties such as density and viscosity of the fluids of interest in the computational models is required.

This paper describes a methodology to incorporate the physical information of reservoir fluids that consists of a previous characterization that includes experimental data such as composition, density and viscosity at different temperature and pressure conditions. This characterization procedure has the purpose of generating libraries, which contain all the physical information of the fluids of interest. These libraries can be exported to different CFD tools, one of them is ANSYS – CFX.

Case studies about a transport line and a separation system will be shown, where special libraries written in Fortran are used to provide the crude oil properties to a material in ANSYS – CFX, and both will include phase change modeling.

Document Details

AuthorHinojosa. H
Date 8th November 2018
OrganisationGrupo SSC S.A. de C.V.


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