地层的非均质性使得边水稠油油藏边部油井伴随着吞吐轮次的增加,地层压降不断增大,边水沿高渗带指进到井底,从而造成油井含水上升速度快,制约了热采开发效果。我们进行了氮气泡沫调剖辅助蒸汽吞吐试验,油汽比增加,油井含水上升趋势得到了抑制或有不同程度的下降。 The stratigraphic heterogeneity makes the side oil wells of heavy oil-in-water reservoirs increase along with the throughput of rounds, and the pressure drop in the formation increases continuously. The edge water enters the bottom of the well along the high-permeability zone, resulting in the oil-bearing aquifer rising rapidly , Restricting the thermal development results. We conducted a nitrogen foam profile ancillary steam huff and puff test, oil-vapor ratio increased, the oil well water uptrend has been inhibited or varying degrees of decline.