| 鄂尔多斯盆地双山地区太原组砂岩次生孔隙形成机制 |
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| 引用本文： | 陈义林,李壮福,秦勇.鄂尔多斯盆地双山地区太原组砂岩次生孔隙形成机制[J].煤田地质与勘探,2011,39(1):11-15. |
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| 作者姓名： | 陈义林 李壮福 秦勇 |
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| 作者单位： | 中国矿业大学资源与地球科学学院, 江苏 徐州 221116 |
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| 摘 要： | 鄂尔多斯盆地双山地区太原组砂岩的储集空间存在多种类型的次生孔隙。为指导本区天然气的勘探开发，通过岩心观察和铸体薄片鉴定分析方法，探讨了该区太原组砂岩次生孔隙的形成机制。研究认为，双山地区太原组砂岩次生孔隙的形成机制主要受被溶蚀组分的物质基础、酸碱溶蚀性流体与被溶组分之间的溶解反应、溶蚀后自生矿物的充填以及构造压裂缝4个因素的影响。其中，酸性溶蚀方式及自生矿物的充填对次生孔隙的发育起到主导作用。
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| 关 键 词： | 鄂尔多斯盆地 双山地区 太原组砂岩 次生孔隙 形成机制 |
| 收稿时间： | 2010-02-26 |
The mechanism of secondary porosity in Taiyuan sandstone,at Shuangshan region,Ordos basin |
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| CHEN Yilin,LI Zhuangfu,QIN Yong.The mechanism of secondary porosity in Taiyuan sandstone,at Shuangshan region,Ordos basin[J].Coal Geology & Exploration,2011,39(1):11-15. |
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| Authors: | CHEN Yilin LI Zhuangfu QIN Yong |
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| Institution: | School of Earth and Resources Science, China University of Mining and Technology, Xuzhou 221116, China |
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| Abstract: | There are various types of secondary porosity in Taiyuan sandstone at Shuangshan region,Ordos basin.Based on the observation of drilling cores and measurement of identification of casting thin sections under micro-scope,the paper discusses the mechanism of secondary porosity,so as to guide the exploration of natural gas.The mechanism of secondary porosity in Taiyuan sandstone was discussed from four factors including corroded material foundation.acidic and alkalic fluid dissolution,infilling of authigenic m... |
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| Keywords: | Ordos basin Shuangshan Taiyuan sandstone secondary porosity mechanism |
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