摘要
针对鄂尔多斯盆地天环中段洪德油田长 8 油藏储层非均质性及主控因素认识不清、高效开发与稳产受到制约的问题,结合大量钻井、岩心资料、测井曲线对比分析等,运用岩心观察、显微镜岩石薄片鉴定、扫描电镜以及压汞、相渗实验等手段,充分结合沉积相及成岩作用认识,对研究区长 8油藏进行定量分析,从宏观的层内、层间、平面非均质性和微观非均质性多方面开展研究,最终认为洪德油田长 8 油藏呈现强非均质性特点,沉积微相、砂岩不同碎屑组分、成岩作用等是影响其非均质性强的主控因素.
Abstract
In view of the problems of reservoir heterogeneity and unclear understanding of main control factors in Chang 8 reservoir of Hongde oilfield in the middle part of Tianhuan,Ordos Basin,efficient development and stable production are restricted by a large number of drilling,core data and log comparative analysis,using core observation,microscopic rock slice identification,scanning electron microscopy,mercury injection and phase infiltration experiments,etc.Based on the understanding of sedimentary facies and diagenesis,the quantitative analysis of Chang 8 reservoir in the study area is carried out from the macro in-tra-layer,interlayer,plane heterogeneity and microscopic heterogeneity.Finally,it is con-cluded that Chang 8 reservoir in Hongde oilfield presents strong heterogeneity,and sedi-mentary microfacies,different clastic components of sandstone,diagenesis and other main factors affecting its strong heterogeneity.
维普
万方数据