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断层区油藏构造复杂,砂体发育非均质性强,油水分布复杂,长期注水及注聚后期剩余油分布高度零散。因此对于特高含水期的聚合物驱二类油层的开发应充分考虑断层构造的影响,及挖潜断层区的剩余油潜力。本文通过对,某井附近的断层进行认识和对断层附近剩余油的分析,提出了三个方面寻找剩余油,有效地指导油田的开发方案调整,为断层区油藏开发积累了宝贵的经验。
Fault zone reservoir structure is complex, sand body development is not homogeneous, oil and water distribution is complex, long-term water injection and injection late remaining oil distribution highly fragmented. Therefore, for the development of polymer flooding type II reservoirs in the ultra-high water-cut period, the influence of fault structure and the residual oil potential of the potential fault zone should be fully considered. Based on the understanding of the fault near a well and the analysis of the remaining oil near the fault, the paper proposes three aspects to find the remaining oil, which can effectively guide the adjustment of the oilfield development plan and accumulate valuable experience for the reservoir development in the fault zone.