储层沉积-成岩作用的物性响应特征  

Physical property response characteristics to sedimentation and diagenesis of reservoir

作　　者：时建超[1] 孙卫[1] 张创 莫建武[3] 丁磊 张奉[1] 

机构地区：[1]西北大学大陆动力学国家重点实验室,陕西西安710069 [2]陕西延长石油(集团)有限责任公司研究院,陕西西安710069 [3]中原油田分公司勘探开发科学研究院,河南濮阳457001

出　　处：《陕西师范大学学报（自然科学版）》2013年第2期88-93,共6页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家科技支撑计划项目(2007BAB17B00)

摘　　要：对苏北盆地沙埝油田阜三段(E1f3)储层岩石特征、物性特征、成岩作用及孔隙演化过程进行研究,在此基础上分析沉积和成岩作用对储层物性的控制作用,用数理统计方法对相关的影响因素进行了定量分析.研究表明:储层物性明显受沉积相带和成岩作用控制,由水下分流河道、河口砂坝到席状砂,物性依次变差;压实过程损失的孔隙度为13.3%,早期石英次生加大与碳酸盐胶结损失孔隙度9.5%,长石、岩屑及填隙物溶蚀增加孔隙度11.9%,晚期石英次生加大与碳酸盐胶结损失孔隙度9.7%;胶结作用造成的孔隙损失大于压实作用;对本区物性影响较大的沉积-成岩因素为粒度、压实作用、胶结作用和溶蚀作用.The rock characteristics, physical property, diagenesis and the process of porosity evo-lution are analysed in E1f3 reservoir of Shanian oilfield, Subei basin. On the basis,the control ac-tion of physical property from sedimentation and diagenesis is analysed,and the related factors are quantitatively analyzed by mathematical statistics method. The research shows that physical prop-erty is obviously controlled by sedimentary microfacies and diagenesis, and from subsea distribu-tary channel, mouth bar to sheet, physical properties become worse. The porosity decreases 13.3% by compaction, 9.5% by quartz secondary outgrowth and carbonatite cementation in early phase, and increases 11.9% by feldspar, debris and interstitial material corrosion, and decreases 9.7% by hydrosialite, quartz secondary outgrowth, and ankerite cementation and metasomasis in late phase. The main control factors of physical property in study area are clast size, compaction, cementation and corrosion.

关 键 词：沉积作用 成岩作用 物性 苏北盆地 

分 类 号：TE122.2[石油与天然气工程—油气勘探]