Abstract
In this paper, the extended Patel-Teja equation of state was
modified to describe non-ideality of the liquid phase containing
water and electrolytes accurately. The modified Patel-Teja
equation of state (MPT EOS) was utilized to develop a predictive
method for gas hydrate equilibria. The new method employs the
Barkan and Sheinin hydrate model for the description of the
hydrate phase, the original Patel-Teja equation of state for the
vapor phase fugacities, and the MPT EOS (instead of the activity
coefficient model) for the activity of water in the aqueous phase.
The new method has succesfully predicted the gas hydrate formation
conditions in aqueous solutions of single and mixed electrolytes.
The agreement between experimental data and predictions was found
to be excellent.
Original language | English |
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Journal | SPE Journal |
Volume | 2 |
Issue number | 4 |
Pages (from-to) | 406-416 |
ISSN | 1086-055X |
DOIs | |
Publication status | Published - 1997 |