SPE Production & Operations
This paper is the reply to SPE-104235-PA.
The authors appreciate Dr. Civan’s interest in our predictions of
asphaltene-onset pressures. It is interesting to see that
well-established temperature correlations can fit our example predictions, but
we would like to emphasize that the onset pressures in our Fig. 7 are
predictions, not measured data. Perhaps the temperature correlations
should be used with the measured data (i.e., the onset solubility conditions at
atmospheric pressure) from which predictions can be made for the onset of
asphaltene instability at any temperature and pressure.
© 2006. Society of Petroleum Engineers
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