鄂尔多斯盆地西缘长8油藏储层特征认识  

Understanding of reservoir characteristics of Chang 8 reservoir in western Ordos Basin

作　　者：杨晨 李玲 赵沪春 屈丽 YANG Chen;LI Ling;ZHAO Huchun;QU Li(Oil Production Plant 7 of PetroChina Changqing Oilfield Company,Xi'an Shaanxi 710018,China)

机构地区：[1]中国石油长庆油田分公司第七采油厂,陕西西安710018

出　　处：《石油化工应用》2024年第10期63-67,共5页Petrochemical Industry Application

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。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 intra-layer,interlayer,plane heterogeneity and microscopic heterogeneity.Finally,it is concluded that Chang 8 reservoir in Hongde oilfield presents strong heterogeneity,and sedimentary microfacies,different clastic components of sandstone,diagenesis and other main factors affecting its strong heterogeneity.

关 键 词：鄂尔多斯盆地 储层非均质性 成岩作用 

分 类 号：TE122.23[石油与天然气工程—油气勘探]