## USE OF MODIFIED RELATIVE PERMEABILITIES FOR HYDRODYNAMIC CALCULATIONS IN STRATIFIED

V. V. Eliseenkov and S. P. Plokhotnikov UDC 532.546 The possibility of decreasing the dimensions of the problem of two-phase filtration in stratified beds through the introduction of modified phase permeabilities instead of the initial relative permeabilities (which are the coefficients of the initial system of equations within the framework of the Buckley-Leverett model) is investigated. Consideration is given to the physical and mathematical possibilities of constructing the modified permeabilities for the case where the relative permeabilities of each phase are presented by different analytical dependences for individual seams. Kazan State Technological University, Kazan, Russia; e-mail: Yakovlevig@hq.tatenergo.ru. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 75, No. 2, pp. 81-84, March-April, 2002. Original article submitted January 25, 2001; revision submitted August 8, 2001. JEPTER74920200213 JEPTER7492013