The wetting behavior of crude-oil/brine/rock systems can have a dominant effect on processes by which oil is recovered from underground reservoirs. A working knowledge of the crude-oil/brine/solid interactions that govern wetting behavior is needed. Application of the dynamic Wilhelmy plate technique to a variety of wettability conditions induced by adsorption from crude oil shows that the conventional method of determining advancing and receding contact angles from force-distance records is not always applicable. A point-by-point interpretation is presented and applied to a variety of situations. These include slippage of the three-phase line of contact and time-dependent wetting phenomena related to adsorption kinetics. For such complex wetting conditions, direct observation of the behavior of the three-phase line of contact is a necessary part of ensuring that interpretations of the force-distance record are reasonable.

Point-by-point method of determining contact angles from dynamic Wilhelmy plate data for oil/brine/solid systems / A. Mennella, N. R. Morrow. - In: JOURNAL OF COLLOID AND INTERFACE SCIENCE. - ISSN 0021-9797. - 172:1(1995), pp. 48-55.

Point-by-point method of determining contact angles from dynamic Wilhelmy plate data for oil/brine/solid systems

A. Mennella
Primo
;
1995

Abstract

The wetting behavior of crude-oil/brine/rock systems can have a dominant effect on processes by which oil is recovered from underground reservoirs. A working knowledge of the crude-oil/brine/solid interactions that govern wetting behavior is needed. Application of the dynamic Wilhelmy plate technique to a variety of wettability conditions induced by adsorption from crude oil shows that the conventional method of determining advancing and receding contact angles from force-distance records is not always applicable. A point-by-point interpretation is presented and applied to a variety of situations. These include slippage of the three-phase line of contact and time-dependent wetting phenomena related to adsorption kinetics. For such complex wetting conditions, direct observation of the behavior of the three-phase line of contact is a necessary part of ensuring that interpretations of the force-distance record are reasonable.
contact angles; crude oil; dynamic Wilhelmy plate; wettability
Settore FIS/01 - Fisica Sperimentale
1995
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/203702
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