A specific case of cross-phase fluid exchange
In BO and MBO PVT models when oil and gas phases rich reach chemical equilibrium the total mass of of oil and gas components spreads spread between oil and gas phases according to ambient pressure and temperature .
Given a mixture of oil and gas sharing the same volume under pressure
and
temperature with
...
the total mass of gas component
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| body | m_G = m_{Gg}(p,T) + m_{Go}(p,T) |
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wherethen
the mass share of oil component in oil phase
...
are all functions of pressure and temperature .
The quantitative measure of cross-phase exchange is given by Soliton GOR () and Vaporized Oil Ration ():
