扇三角洲前缘地质知识库的建立及应用  

Development and application of geological knowledge database for fan-delta front in the dense spacing area

作　　者：陈程[1] 孙义梅[1] 贾爱林[2] 

机构地区：[1]中国地质大学能源学院,北京100083 [2]中国石油勘探开发研究院,北京100083

出　　处：《石油学报》2006年第2期53-57,共5页Acta Petrolei Sinica

基　　金：国家重点基础研究发展规划(973)项目(2001CB209100)资助

摘　　要：微相砂体的地质知识是储层随机建模的基础。地质知识来源于对现代沉积区、露头区和密井网区的精细解剖,其中密井网区的精细描述是在我国东部老油田建立储层地质知识库时的一条有效途径。利用双河油田密井网数据,建立了扇三角洲前缘原型骨架模型,研究了水下分流河道砂体的几何形态及分叉规律,获得了微相砂体的长度概率分布、宽度概率分布、宽-厚比关系和长-宽比关系等定量地质知识,为双河油田开发后期储层的精细表征提供了扎实的基础。Geological knowledge about microfacies sand bodies gives the foundation for stochastic reservoir modeling. The geological knowledge mainly comes from fine description of outcrops, modern sedimentations and dense spacing areas. The fine description of dense spacing areas is an effective and worthwhile way to set up the geological knowledge database of reservoir in old oilfields of East China. A prototype framework model of fan-delta front was established by applying data from dense spacing area of Shuanghe Oilfield. The geometrical features and bifurcation laws of subaqueous distributary river channel were obtained. The quantitative geological knowledge about the probability distribution of length and width of microfacies sand bodies and the ratios of length to width and width to thickness were presented. The results provide a substantial base for fine description of reservoir in Shuanghe Oilfield in the late period of oilfield development.

关 键 词：双河油田 扇三角洲前缘 微相砂体 储层表征 原型骨架模型 地质知识库 

分 类 号：TE112.2[石油与天然气工程—油气勘探]