Analysis of the main controlling factors of flow field based on three-dimensional artificial rock cores
In response to the problem of unclear remaining oil variation patterns and difficult flow field description at different water cut stages,the main controlling factors of the flow field evolution process in High water cut reservoirs were determined by making three-dimensional artificial rock cores.The results indicate that the extremely poor permeability,oil-water viscosity ratio,and injection speed Have a significant impact on the timing of the formation of the dominant seepage field;The dominant seepage field is determined by the upward curve of the water drive characteristic curve as the timing for the formation of the dominant seepage channel(low efficiency circulation zone).The research results Have provided guidance for the distribution and adjustment of flow fields in High water cut reservoirs.
Water drive reservoirFlow field distributionmain controlling factorsRemaining oil