METHOD FOR DETERMINATION OF WETTABILITY OF POROUS MATERIALS

Method for determination of wettability of porous materials comprises placing of a sample of a porous material in a cell of a calorimeter and contacting the sample with a wetting fluid. A heat flow into the cell is continuously measured and based on results of the measurement and taking into account...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NADEEV, ALEXANDER, SAFONOV, SERGEY SERGEEVICH, KOROBKOV, DMITRY ALEXANDROVICH
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	Method for determination of wettability of porous materials comprises placing of a sample of a porous material in a cell of a calorimeter and contacting the sample with a wetting fluid. A heat flow into the cell is continuously measured and based on results of the measurement and taking into account a thermal effect of the fluid compression a first wetting contact angle of pores filled with the fluid is calculated. Then a pressure in the cell with the sample is increased starting from an initial value until pores of the sample are completely filled with the fluid and then the pressure is reduced to the initial value with continuous measuring of a heat flow into the cell. It enables calculation of a second wetting contact angle for pores completely filled with the fluid and of a third wetting contact angle for pores free from the fluid.