Application of Deep Profile Control and Displacement Technology in Daqing Peripheral Oilfield

Abstract

Since the A Oilfield was put into development, after many potential tapping adjustments, most of the blocks have entered a period of medium and high water cut. In view of the fact that the deep flooding test of S well area was carried out in S Oilfield in 2014, preliminary results have been achieved. However, the effect of profile control and flooding in well groups with large sandbodies developed between injection and production wells is relatively poor. small. However, A Oilfield is affected by the development of narrow channels and high frequency of faults. The degree of waterflooding control is low, and the traditional water injection effect is not ideal. Therefore, the F test area is selected to study the well pattern intensification adjustment and the combination of flooding Recovery factor technology, playing the synergistic effect of well pattern adjustment, and flooding, can not only effectively improve the deep heterogeneity of the oil layer, expand the swept volume of water injection, increase the degree of reserves control, but also improve the oil displacement effect, so as to achieve improved recovery. The purpose of the rate is to provide guidance and reference for the deep adjustment of wells in the same type of narrow and thin sand bodies.