普通稠油油藏周期注水提高水驱效率技术研究与应用

STUDY AND APPLICATION OF ENHANCED OIL RECOVERY WITH PERIODS WATER FLOODING IN VISCOUS OIL RESERVOIR

冯瑞林 李仰民 李凤群 李运娥 王进宝 翟光华

中国石油华北油田分公司采油三厂, 河北河间 062450

No.3 Production Plant, Huabei Oilfield Co

通过对脉冲注水机理及适应性的分析,进一步解析了在调水过程中油水在均质与非均质地层中不同的运动规律。与常规注水相比,周期注水可有效提高原油采收率,充分挖掘层间、层内及平面的剩余油潜力。结合高30断块处于开发中后期、含水上升快、各项治理措施未获突破等状况,采取了"大幅短期脉冲注水",油藏开发效果得到显著改善。主要采取了以油砂体研究及静动态资料综合分析,细分注采单元作为调水单元的方法,不断在实践中试验总结,补充新认识,使注采单元的划分更贴近地下实际,在此基础上通过试验调水方法,实现降水增油,同时培养出部分高产井,使油藏水驱状况得到改善。

The movement disciplinarian of oil-water in homogeneity or heterogeneity formation was dissected proceed in the process of water control through the research of pulsating flow water flooding mechanism and its adaptability analysis. Compare with general water flooding, periods water flooding can enhance oil recovery and excavate residual oil completely. Combining with the status of fault block Gao30, the technology of "Large scope short period pulsating water flooding" was developed and development effect was improved remarkably. The main used method is to mark off injection production system as water control unit. With the development practice, new cognition was sum up which made the injection-production system more close to the formation, so some high producing well were cultivated, water drive status of this reservoir was improved sharply.

10.3969/j.issn.1000-7393.2001.01.019