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油藏储层平面非均质严重,在长期的注水开发过程中剩余油分布复杂,平面动用不均衡。通过油水井合理的配产配注,可以改变不均衡的状况。针对油藏中一注两采井组和两注一采井组在特高含水期两注采井间动用不均衡的状况,提出了特高含水期均衡驱替的标准,并在不同的储层非均质情况下,开展了井组的配产配注优化研究,建立了不同非均质储层情况下,两种井组在给定的调控时间内达到均衡驱替的注水量或液量分配比例,为油藏注采结构调整提供指导。
The reservoir heterogeneity is serious in the reservoir plane. The residual oil distribution is complicated during the long-term waterflooding development and the plane is unevenly used. Reasonable allocation of oil and water wells through the note, you can change the imbalance in the situation. In view of the imbalance between the two injection production wells and two injection injection production wells in a reservoir with two injection injection production wells and one production injection injection production recovery well in the extra-high water cut period, a criterion of equilibrium displacement in the ultra-high water-cut period is proposed. In the case of heterogeneity, the allocation optimization of well allocation is carried out. Under different heterogeneous reservoirs, the water injection quantity or liquid of two kinds of well groups to achieve a balanced displacement in a given regulation time Volume distribution ratio, provide guidance for the structural adjustment of oil and gas injection.