Theoretical and Experimental Investigations of Miscible Displacement in Fractured Porous Media

• Published in: Transport in porous media Vol. 57; no. 1; pp. 59 - 73
• Main Authors: Jamshidnezhad, M., Montazer-Rahmati, M., Sajjadian, V. A.
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer 01.10.2004; Springer Nature B.V
• Subjects: Displacement; Earth sciences; Earth, ocean, space; Engineering and environment geology. Geothermics; Exact sciences and technology; Exact solutions; Heptanes; Hydrocarbons; Hydrogeology; Hydrology. Hydrogeology; Kerosene; Mass transfer; Mathematical models; Matrix methods; Method of characteristics; Miscibility; Pollution, environment geology; Porous media; Process parameters; Sedimentary rocks; miscible displacement; mathematical models; reservoirs; matrix-fracture mass transfer; drill cores; displacements; prediction; fractured porous media; method of characteristics; laboratory miscible displacement; porous media; Analytical solution; fractures; methodology
• ISSN: 0169-3913; 1573-1634
• DOI: 10.1023/B:TIPM.0000032738.11455.c5

In this paper a mathematical model for miscible displacement in fractured porous media is developed. The model takes into account mechanisms of mass transfer between fracture and matrix. The model is normalized by using the dimensionless parameters, which characterize the process, and the analytical solutions of the resulting system of equations are provided by utilizing the method of characteristics. For comparison the results of model with experimental results, laboratory displacement tests have been performed in fractured systems under miscible displacement. The porous media used were cylindrical Asmari cores from Iranian reservoirs containing an artificially vertical fracture. Normal heptane and kerosene were two miscible fluid used. There is very good agreement between experiments and model prediction.