| 山西沁水盆地南部3号煤层储集空间特征与变质程度的关系 |
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| 引用本文： | 孙梦迪,于炳松,朱华,邓韬,杨勃,菅瑞.山西沁水盆地南部3号煤层储集空间特征与变质程度的关系[J].中国煤炭地质,2011(11):31-35. |
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| 作者姓名： | 孙梦迪 于炳松 朱华 邓韬 杨勃 菅瑞 |
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| 作者单位： | 中国地质大学(北京)地球科学与资源学院; |
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| 基金项目： | 中国地质大学(北京)团委大学生课外学术科技基金; 地学院第8届学生课外学术科技创新项目资助 |
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| 摘 要： | 煤岩的变质程度影响着煤层的储集空间特征,对煤岩的孔隙度,渗透率以及煤岩微裂缝的发育都有重要影响。为了研究两者的关系,选取山西沁水盆地南部不同矿区有代表性的3号煤层,对不同变质程度煤样的镜质体反射率（R0）、孔隙度、渗透率进行了测试并对煤储集空间类型和结构进行扫描电镜观察。研究结果表明：3号煤层储集空间类型主要为孔隙和微裂缝;当R0小于2.4%,孔隙度、渗透率与R0呈负相关,R0大于2.4%时,孔隙度、渗透率与R0呈正相关,R0为2.4%可能是煤岩变质程度对煤岩孔隙度、渗透率影响的关键期,在高变质程度煤岩中孔隙度与渗透率的升高是由微裂缝的发育引起的,并且随着R0的增加,微裂缝发育程度增大。
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| 关 键 词： | 煤层 储集空间 变质程度 沁水盆地 |
Relationship between No.3 Coal Seam Reservoir Space Characteristics and Degree of Coal Metamorphism in Southern Qinshui Basin,Shanxi |
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| Sun Mengdi,Yu Bingsong,Zhu Hua,Deng Tao,Yang Bo , Jian Rui.Relationship between No.3 Coal Seam Reservoir Space Characteristics and Degree of Coal Metamorphism in Southern Qinshui Basin,Shanxi[J].Coal Geology of China,2011(11):31-35. |
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| Authors: | Sun Mengdi Yu Bingsong Zhu Hua Deng Tao Yang Bo Jian Rui |
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| Institution: | Sun Mengdi,Yu Bingsong,Zhu Hua,Deng Tao,Yang Bo and Jian Rui(School of Earth Sciences and Resources,CUGB,Beijing 100083) |
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| Abstract: | The degree of coal metamorphism has influences on coal reservoir space characteristics and significantly impacted coal and rock porosity,permeability and development of micro-cracks.In order to study the relationship between them,a representative No.3 coal seam in different mining areas in the Qinshui Basin,Shanxi has been selected to carry out reflectance of vitrinite(R0),porosity and permeability tests of coal samples with different degree of coal metamorphism,as well as the coal reservoir space type and ... |
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| Keywords: | coal seam reservoir space degree of metamorphism Qinshui Basin |
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