杜66潜山稠油油藏治水方法研究

Water control study of heavy oil reservoir in Du 66 buried hill

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。

Method Seeing the fact of fast bottom water coning, increasing Nos. of high water cut well, ineven distribution of surface oil/water, technology study gearing to water control in Du 66 buried hill heavy oil reservoir is deployed. Purpose\ To search for new ways for enhancing oil recovery by controlling bottom water coning of single well and adjusting distrbution of water and oil. Result\ New mode applicable for comprehensive management and production enhancement is established, with which water out of this year is reduced to the current 0 62% from 1 40% of last year,monthly water invasion rate from 5 19×10\+4 m\+3 to 4 65×10\+4 m\+3. Conclusion\ With this method, it is possible to have oil/water interface in reservoir rise evenly and water upward coning controlled; further to gear new direction towards long term stable production.