An interface of fluid phases is created
by unbalanced molecular attracting and repulsive force. Evaluating the
gas-liquid interfacial tension is very important and major interest in
injection processes. The interfacial tension between gas and liquid phases can
be measured by different methods in the reservoir and surface condition. VIT
(vanishing interfacial tension technique) is a laboratory method that
calculates interfacial tension for mixture of oil-gas in the series of
pressure. Estimating the amount of the minimum miscibility pressure (MMP) is
taken to be the pressure at which the interfacial tension tends to zero when
plotted against pressure. The surface tension calculation is done by image
processing of sessile and pendant drops of crude oil enclosed in a surrounding
medium of the injection gas. In this paper use a computer program for
processing and digestion the shape of a pendant drop has been brought.
Cite this paper
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