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方法 鉴于杜 6 6潜山稠油油藏开发中底水锥进快 ,高含水井增多 ,平面上油水分布不均衡的实际 ,开展了以治水为中心的技术研究工作。目的 控制单井底水锥进 ,调整油水分布关系 ,为提高采收率探索新途径。结果 建立一套适于该油藏治水增油的综合治理模式 ,使杜6 6潜山稠油油藏含水上升率由上年的 1 40 %降至目前的 0 6 2 % ,月水侵速度由上年的 5 1 9× 1 0 4m3降至目前的 4 6 5× 1 0 4m3,取得了明显效果。结论 该技术实现了油藏油水界面均衡上升 ,控制了水锥上突 ,从而找到了保持长期稳产的新方向。
Methods In view of the fact that Du 6 6 buried hill heavy oil reservoirs are developing fast water coning at mid-bottom, increasing high-water wells and unbalanced distribution of oil and water on the plane, the research on water control is carried out. Objective To control the single well bottom water coning and adjust the relationship between oil and water distribution and explore new ways to enhance oil recovery. Results A set of comprehensive management mode suitable for flood control and oil accumulation in this reservoir was established. The water cut rate of heavy oil reservoirs in Du 6 6 dropped from 1 40% of the previous year to 0.662% From 519 × 104m3 in the previous year to 465 × 104m3 in the current year, remarkable results have been obtained. Conclusion This technique has achieved a balanced rise of the oil-water interface in the reservoir and controlled the water coning uplift, thus finding a new direction for long-term stable production.