Patent ID: 9016111
Filing Date: 2015-04-28
Classification: G01N

Abstract:
1. A method for determining wettability alteration due to fluid changes, the method comprising: measuring interfacial tension between a first liquid and a second fluid; measuring interfacial tension between the first liquid and a third fluid; measuring surface tension between the second fluid and a first reference fluid; measuring surface tension between the third fluid and the first reference fluid; measuring contact angle of the first liquid and a first solid surface in a second reference fluid; measuring contact angle of the second fluid and the first solid surface in the first reference fluid; measuring contact angle of the third fluid and the first solid surface in the first reference fluid; and determining a change in wettability for the first solid surface and the first liquid due to a change from the second fluid to the third fluid based at least in part on the measurements of interfacial tensions, surface tensions and contact angles.