It depends on what do you want to capture. Aqueous - hydrocarbon phases interaction can usually be captured with a typical cubic EoS like Peng Robinson or SRK. But for some particular hydrocarbons, depending on their composition, a different kind of EoS may be needed. If strong "cross association" water-HC components interactions are expected, CPA or SAFT type EoS may be a better choice. For example: to better reproduce the hydrate curve in a gas condensate system, CPA has been proven to be more accurate than cubic EoS. Cubic EoS struggle to reproduce the swelling of hydrocarbons when injecting CO2 as recovery method or the gravitational segregation in reservoirs with CO2-asphaltenes interaction.
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Jorge Trujillo
Head of Flow Assurance and Process
Galp Energia
Lisboa
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Original Message:
Sent: Mar 20,2014 05:08 AM
From: Hassan Ali Marefat
Subject: Water and Hydrocarbon Phase Envelope
Hello,
I am working on my MSc thesis and in a section of it, I need to develop a computer code for water-hydrocarbon phase envelope. Unfortunately, I could not find a suitable algorithm for it. I am wondering if anyone can provide one.
Thank you
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Hassan Ali Marefat
MSc Student
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