临兴地区煤系致密砂岩储层流动单元划分及地质控因  

Classification and Geological Controlling Factors of Flow Units in Coal Series Tight Sandstone Reservoir in Linxing Block

作　　者：张涛[1,2] 申建[1,2] 李超[1,2] 

机构地区：[1]中国矿业大学煤层气资源与成藏过程教育部重点实验室,江苏徐州221008 [2]中国矿业大学资源与地球科学学院,江苏徐州221116

出　　处：《煤炭技术》2018年第3期118-121,共4页Coal Technology

基　　金：国家自然科学基金项目(41672149);国家科技重大专项(2016ZX05066001-004)

摘　　要：以临兴地区含煤地层为研究对象,基于实验与测井资料,分析了砂岩储层分布、岩石学、含气性以及物性特征,开展了流体单元研究。基于渗透率、孔隙度、FZI指数、储层厚度、储层含气饱和度的K-均值聚类分析,划分出A、B、C对应优、中、差3类流动单元。研究区煤系砂岩主要发育在水下分流河道微相,部分发育在混合坪微相中;成岩作用以压实、胶结、溶蚀作用为主,其中压实和胶结对砂岩孔渗起破坏作用,而溶蚀作用起积极作用。Based on experiment and well logging data of coal series in Linxing block, the characteristics of sandstone reservoir distribution ,petrology, gas bearing property and physical property are analyzed. Research of flow units is carried out. K-mean clustering analysis are based on permeability ,porosity, FZI parameters, reservoir thickness and gas saturation of reservoir,three types of flow units are classified. Sandstone of coal series mainly developed in underwater shunt channel microfacies and mixed microfacies. Sandstone reservoir obtained negative effect from compaction and cementation,while positive effect is from dissolution.

关 键 词：煤系致密砂岩 流动单元 地质控制因素 

分 类 号：P618.13[天文地球—矿床学] P631.4[天文地球—地质学]