For more information about this meeting, contact Mari Royer, Alberto Bressan, Ludmil Zikatanov.
|Title:||Method of characteristics solutions for compositional floods|
|Seminar:||Center for Interdisciplinary Mathematics Seminar|
|Speaker:||Saeid Khorsandi, Penn State, Department of Petroleoum Engineering|
|Gas flooding is the most popular enhanced oil recovery (EOR) method today. The interaction of multiphase compositional flow with phase behavior during the gas flooding process affects the recovery significantly. The governing PDEs of gas flooding are separable and the composition velocities are only a function of composition. Therefore, the composition path in composition space is the solution for flow of the PDEs. A representative model of gas flooding process should have at least four components but even more components are required to model complex phase behavior encountered in a gas flooding process. Consequently the dimensions of composition spaces increases and the solution will be very complex. The accurate composition path is not necessary to design a gas flood process thus several simplified methods are developed to estimate the composition path and calculate minimum miscibility pressure (MMP). The composition path consists of shocks only in a simplified MMP calculation method. For gas flooding with bifurcating phase behavior (phase behavior where a two-phase region splits into two separate two-phase regions), the simplified methods calculate MMP with a significant error. We recently developed a MOC solution for bifurcating phase behavior. Slimtube experiments and MOC solutions are widely used to study other type of enhanced oil recovery processes as well.|
Room Reservation Information
|Date:||10 / 11 / 2013|
|Time:||03:30pm - 04:30pm|