مشخصات پژوهش

عنوان	ندارد
نوع پژوهش	مقالات در همایش ها
کلیدواژه‌ها	Non-Fickian equation, Pressure decay method, Gas diffusion heavy oil, Fick's law, Interface mass transfer
چکیده	There are many studies which focus on the CO2 injection into underground formations to fulfill enhanced oil recovery and/or sequestration purposes. Diffusion of CO2 in these reservoirs is modeled with Fick’s second law. In this work, numerical model of Fickian transport with equilibrium and non-equilibrium boundary condition is compared with non-Fickian one for experimental diffusivity data. The experimental procedure is based on the pressure-decay method illustrated in the literature. Based on the results, non-Fickian equation with equilibrium boundary condition (EBC) shows a better match compared to Fickian equation with (EBC) for CO2/heavy oil. It is found that the Fickian model with non-equilibrium boundary condition (NEBC) shows the best match for CO2/heavy oil. For CH4/heavy oil system, type of the equation and boundary condition has no effect on the results and both Fickian and non-Fickian equations indicates the same results.
پژوهشگران	سعیده یزدانی (نفر اول)، رضا آذین (نفر دوم)، شهریار عصفوری (نفر سوم)، یاسین غلامی (نفر چهارم)