Evaluation of CO<sub>2</sub> Hydrate Saturation in Porous Core Experiments Using Medical CT Images
Mahnaz Aghajanloo, Siân Jones, Lifei Yan, Denis Voskov, R. Farajzadeh
Abstract
High Resolution Image Download MS PowerPoint Slide Understanding the kinetics of CO 2 hydrate formation and the resulting saturation of the hydrate in porous rocks is crucial for processes such as the storage of CO 2 in underground formations. Nevertheless, to date, there is no established procedure that utilizes a medical CT scanner for quantifying gas hydrate saturation in core samples during the growth stage. This study proposes a methodology for estimating hydrate saturation using a medical CT scanner during the injection of CO 2 into porous media. This method uses the mean area obtained from the image analysis to calculate the dynamic profile of water and the CO 2 hydrate along the length of the sandstone core. To demonstrate the technique, core flooding experiments were conducted to form gas hydrates in semibrine-saturated sandstone cores.