黄骅坳陷羊三木油田河道砂储层动态模型表征  

Dynamic model characterization of channel sandstone reservoirs in Yangsanmu Oilfield,Huanghua Depression

作　　者：孟庆芬[1] 侯加根[2] 徐朝晖[2] 徐芳[3] 

机构地区：[1]中国石油大学(北京)石油天然气工程学院,北京102249 [2]中国石油大学(北京)资源与信息学院,北京102249 [3]中国石油大港油田公司勘探开发研究院,天津300280

出　　处：《油气地质与采收率》2009年第6期17-19,23,共4页Petroleum Geology and Recovery Efficiency

摘　　要：在油田注水开发过程中,储层性质会发生变化。以黄骅坳陷羊三木油田为例,通过岩心分析、对子井分析以及动态模型的建立,表征了注水开发前后储层性质的变化规律。羊三木油田主要发育河流相砂体,具有高孔、高渗透的特征,注水开发后储层不稳定矿物含量减少,粒度分选性变好,泥质含量明显减少,孔喉半径增大,孔隙度和渗透率普遍增大,渗透率最大可增加2～4倍。利用对子井注水开发后渗透率与注水开发前渗透率的单元回归分析发现,两者的对数值具有线性相关关系,得到的预测模型与实际模型符合率高达90%以上。In the course of waterflood development,the reservoir character changed. Taking the Yangsanmu Oilfield as an example,the rule of the reservoir property change had been characterized in the water flooding according to the core data,pair wells analysis and dynamic model establishment. The Yangsanmu Oilfield developed fluvial sandstones with the features of high porosity and permeability. After water flooding,theunstable mineral content reduced,and the granularity selectivity got better in the reservoirs. Shale content reduced obviously,and the radiusof pore and throat of the reservoirs enlarged. The porosity and the permeability increased generally ,especially the permeability increased over50% at most. By the regression analysis on the permeability before and after waterflooding of the pair wells,the logarithms of the values arelinearly correlated well. And the coincidence rate between the forecasted model and the actual model is over 90%.

关 键 词：储层性质 动态模型 河道砂 羊三木油田 黄骅坳陷 

分 类 号：TE112.23[石油与天然气工程—油气勘探]