鄂尔多斯盆地北部上古生界储集岩的化学分类及储集性评价  

THE CHEMICAL CLASSIFICATION OF RESERVOIR ROCK OF THE UPPER PALAEOZONIC AND RESERVOIR ASSESSMENT IN THE NORTHERN ORDOS BASIN

作　　者：刘锐娥[1] 孙粉锦[2] 张满郎[2] 卫孝锋[2] 蔺洁[2] 

机构地区：[1]西北大学地质系,陕西西安710069 [2]中国石油勘探开发研究院廊坊分院天然气地质所,河北廊坊065007

出　　处：《天然气地球科学》2003年第3期196-199,共4页Natural Gas Geoscience

摘　　要：鄂尔多斯盆地北部上古生界的天然气储层为碎屑岩储层。这种储层虽然分布面积大 ,但非均质性强、天然气产能变化大。依据碎屑岩储层中主要造岩矿物 Si O2 含量的变化将鄂尔多斯盆地北部地区上古生界砂岩分为高硅型石英砂岩储层、次高硅型石英砂岩储层和硅铝型杂砂岩储层等3型储层。通过进行 X萤光光谱、X衍射、核磁测试等室内分析后认为 :高硅型和次高硅型石英 (质 )砂岩储层是鄂尔多斯盆地北部上古生界天然气的优质储层 ,并且是榆林气田、苏里格气田。The clastic reservoirs of the upper palaeozonic are popularly distributed in the Northern Ordos basin, whereas, the natural gas output of them are instable because of the reservoir heterogeneous According to the main rock forming mineral SiO 2 content's variation, the clastic reservoirs of the upper palaeozonic can be devided quartz sandstone reservoirs with high silicon, quartz sandstone reservoirs with middle silicon and greywacke reservoir with silicon and aluminum Through integrated analysis and research of x ray fluorescence spectrum, microscopic petrology, X ray diffraction and NMR analysis, quartz sandstone reservoirs with the high and middle silicon is the high quality gas reservoirs which is the major gas reservoir of Yulin gas field, Sulige gas field and Wushenqi gas field

关 键 词：鄂尔多斯盆地 上古生界 储集岩 碎屑岩储层 化学分类 储集性评价 化学组成 

分 类 号：P618.130.2[天文地球—矿床学] TE12[天文地球—地质学]