Расчет гидродинамических показателей вязкопластичных нефтей в задачах термозаводнения

Abstract

With the discovery of heavy oil deposits, great attention has been paid to the development of oil fields using thermal methods of influencing oil formations. Theoretical studies of reservoir hydrodynamics, as well as temperature fields in multilayer formations, were stimulated with the advent of modern computers and personal computers. Thanks to the mathematical description, hydrodynamic calculations of the displacement of viscoplastic oil by water with abnormal properties became possible. In the case of displacement of high-viscosity and paraffinic oils by cold water in multi-layer formations, paraffin deposition and blockage of weakly permeable formations occur, as a result of the advanced displacement of oil through layers with high permeability. The results of the conducted research show that the creation of a hot water delay at different stages of the development of deposits of high-viscosity paraffin oil improves the development rate, increases the oil recovery coefficient.