... alteration quantification of rock samples. The results indicate that stearic acid stretching vibrational bands decrease with the decrease of brine ionic strength indicating a partial release of adsorbed organic material from calcite surface. Single ion brines impacted the calcite wettability and sulfate ions...

... and wettability on dielectric dispersion data. We conditioned a 1.5-inch-diameter dolomite plug with solutions of different concentrations of stearic acid. In each set of experiments, we imbibed water into the sample and measured the dielectric dispersion in a frequency range of 10 MHz to 1 GHz using a reflection...

... MHz to 1 GHz. The studied rock wettability was varied in a coreflooding apparatus during a drainage experiment. We used low-polarity oil for the initial drainage to preserve the rock in the water-wet state and added different concentrations of surface-active stearic acid to the oilflood during later...