强碱三元复合驱含水低值期动态调整技术研究

Dynamic Adjusting Technique of Strong Base ASP Flooding at Low Water-cut Stage

综合分析了含水低值期阶段单井受效特点,利用精细地质研究成果,通过实施分区治理确定了不同井组的挖潜方向,总结了含水低值期动态调整技术:针对强碱三元复合驱含水低值期受效不均衡的特点,首先深化油藏地质认识,对井间、层间、层内连通关系综合研究,为适时实施方案调整提供有力的技术依据;通过建立采出井分类模板,对采出井开展分区、分类治理,加强方案及措施针对性,促使强碱三元复合驱区块均衡受效,进一步改善开发效果。在杏六区东部Ⅱ块含水低值期阶段共实施各类方案及措施216井次,治理区、控制区和挖潜区含水持续下降,开发效果较好。

In this article,the single well effective characteristics at low water-cut stage are analyzed comprehensively.By using the results of fine geologic studies,and implementing zoning control for tapping the potential of different well groups using dynamic adjustment technology during low water-cut is summarized.In view of the characteristics of uneven effect of strong base ASP flooding in low water cut period,the reservoir geological knowledge is deeply studied,the relationships of interwell,interlayer and intralayer are studied comprehensively,and the powerful technical basis is provided for timely implementing plan adjustment.Through the establishment of template for production well classification,the classification management is carried out in the production well,and strengthening scheme and targeted measures,strong base ASP flooding effects are balanced and the development effects are further improved.In Block Xing6Ⅱ,all kinds of solutions and measures are used in 216 wells and oilfield development effect is better.