摘要
针对缝洞型油藏动态预测难度大且缺少有效动态预测方法的实际,以缝洞型油藏缝洞分布规律为出发点,通过人工系列模型的水驱油实验研究,得到了典型的相渗曲线。在典型相渗关系的基础上,建立了水平窜进型和纵深沟通型2类缝洞型碳酸盐岩底水油藏的水驱关系式,同时得到了相应的可采储量、采收率、水驱控制储量、含水率及含水上升率的预测公式。水平窜进型水驱曲线在塔河油田奥陶系油藏S46单元的应用情况表明,该曲线具有较强的针对性和很好的相关性,可有效预测油藏的可采储量、水驱控制储量、含水率及含水上升率等指标,是与此类油藏动态特征相适应的、简捷有效的动态分析和预测方法。
In view of the fact that the dynamic prediction of fracture-cave reservoir is difficult and there are few effective prediction methods,according to the distribution of fractures and caves,typical relative permeability curve is built through the water/oil displacement experiments for a series of artificial models.On the basis of that,the water displacement correlations of horizontal channe-ling and indepth connecting carbonate bottom water driving reservoirs are derived,meanwhile,the prediction equations of recov-erable reserve,recovery ratio,water drive reserve,water cut and water cut increasing ratio are obtained.The application of the horizontal channeling water displacement correlations in block S46 of Tahe Ordovician reservoir shows that these relationship curves have strong suitability and good relativity.So it can predict recoverable reserve,recovery ratio,water drive reserve,water cut and water cut increasing ratio effectively.Therefore,we got a simple and effective dynamic analysis and prediction method that is suitable for this type of reservoir.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2010年第2期101-104,共4页
Petroleum Geology and Recovery Efficiency
基金
国家重点基础研究发展计划"973"项目"碳酸盐岩缝洞型油藏开发基础研究"(2006CB202400)
关键词
缝洞型
碳酸盐岩油藏
水驱曲线
水平窜进型
纵深沟通型
奥陶系
塔河油田
fracture-cave reservoir
carbonate reservoir
water displacement curve
horizontal channeling
vertical deep connecting
Tahe Oilfield
