Abstract
This study aims to investigate the variation of P-wave velocity as a function of water saturation. In addition, by using a regression analysis, a predictability of saturated P-wave velocity from dry P-wave velocity and rock's hardness has been examined. In order to perform this study, one hundred cylindrical rock core samples, fifty samples each obtained from Ruweished in northeastern Jordan and from Ajloun in northwestern Jordan, have been extracted and prepared with a height of 20 cm and a diameter of 10 cm. P-wave velocity has been measured five times in each sample in dry and saturated states and the average value has been taken. The results indicate that the water saturation leads to an increase of the P-wave velocity, where the increase in more porous samples is less than what has been found in slightly porous samples. Moreover, the saturated P-wave velocity can be predicted through strong statistical models, which link the saturated P-wave velocity with dry P-wave velocity and hardness.
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