摘要
通过对齐108块莲花油层岩相构型、粒度分布和测井相研究,将该区沉积微相分为:水下大分流河道、水下小分流河道、决口河道、溢堤沉积、前缘砂坝、远端席状砂泥沉积以及浅水湖沉积微相;提出该区的沉积模式为近岸水下扇沉积(二级扇三角洲)模式。并讨论了储层物性的变化及非均质性的控制因素,以及在油田勘探开发中的意义。
Based on the study of lithofacies elements,grain size distribution characteristic and log- ging facies.It's subdivided seven microfacies in liaohua oil reservoir of Qi 108.i.e:1)subaqueous major distributary channel,2)subaqueous minor distributary channel,3)crevass channel,4) overbank deposits,5)front sand barrier,6)distal sheet sand and clay deposits and 7)flooded lake and shallow lake deposits.A sedimentary model the fan-delta subaqueous plain is sggested.Be- sides,it's discussed in this paper that the heterogencities are controlled by sedimentary microfacies and diagenetic events and they play a important role in oil exploration and development.
出处
《矿物岩石》
CAS
CSCD
1996年第4期76-82,共7页
Mineralogy and Petrology
关键词
油层
辽河油田
岩相要素
沉积微相
油矿床
lithofacies element
sedimentary microfacies
evolution model
Heterogencity
Lianhua oil reservoir
Liaohe oil field
