The practice and understanding of reconstructing the flow field by the homogenization-flowline method

Abstract

After a long period of unstable injection and production, the reservoir is distributed within different levels of the advantage seepage area and the weak seepage areac. With the continuous development, especially gradually into the high water content, high recovery degree of the double-high reservoir, saturation field is basically in an almost stable state. For the reservoir of large porous channel and serious flooding, the use of the homogenization field technology can achieve the purpose of adjusting the yield and suction profile, strengthening the balanced utilization, and reconstructing the underground seepage field. Before the reconstruction of the flow field, the flow line was densely distributed in the advantage seepage area, and after the reconstruction of the flow field, the flow line in the well area was evenly distributed. The water injection utilization rate was greatly improved, and the remaining oil was used effectively. On-site examples show that by adjusting the strength of the flat water drive, the daily injection of Gang 5-30 Well was raised from 30 m3 to 100 m3, the distribution of seepage field changed significantly, and the degree of control and utilization of the oil layer was greatly increased.