周清庄油田生物屑灰岩储集体规模预测及储层非均质性层次分析  

Dimension Prediction and Heterogeneity Analysis for Bioclastic Limestone Reservoir of Zhouqingzhuang District, Dagang Oilfield

作　　者：张昌民[1] 王振奇[1] 徐龙[1] 朱光[1] 何鲜[1] 

机构地区：[1]江汉石油学院石油地质系,大港石油管理局研究院

出　　处：《江汉石油学院学报》1994年第2期15-20,共6页Journal of Jianghan Petroleum Institute

基　　金：大港石油管理局资助

摘　　要：大港周清庄油田沙一下生物屑灰岩储层主要由螺灰岩和鲕灰岩组成，形成于歧北古湖湾滨浅湖到半深湖区的近岸滩坝、边缘生物滩沉积环境中．运用地质统计学交差函数理论预测出储集体最大规模为４４００ｍ左右，单层沉积范围一般为１５００～３０００ｍ。按照层次分析法分５个层次表征了储层的非均质性；即第一级目的层段的厚度变化；第二级单层间非均质组合及夹层分布；第三级层内非均质性净毛比和有效厚度计算；第四级层内物性参数的垂向变化和韵律性；第五级样品规模的非均质性。储集体非均质性描述和预测可为建立储层地质模型提供依据。The bioclastic limestone reservoir of Zhouqingzhuang oilfield aredeposited at the areas from littoral to neritic zone of ancient bay of Qibei Lake. Littoralbeach bar and the lake marginal bio - bank are the two major reservoir factes. Variationfunctions of the reservoir dimension show the range is 4400m for the whole reservoir andranges of singlar unit are from 1500 to 3000m. Hierarchy analysis has been used forreservoir heterogeneity studying. The first layer is the whole reservoir thicknessvariation. the second is the singlar unit distribution within the reservoir, the third is theinternal heterogeneity of the singlar unit, the fourth is the rhythms of permeability andporosity in the internal unit and the last describes the heterogeneity in sample scale. Thereservoir dimension predictation and the heterogeneity description may be used to build agood database for reservoir geological modelling.

关 键 词：碳酸盐岩 油气田 储集层 非均质性 

分 类 号：P618.130.2[天文地球—矿床学]