| 四川盆地东北部地区长兴组碳酸盐岩成岩作用及储层孔隙演化 |
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| 引用本文： | 王春连.四川盆地东北部地区长兴组碳酸盐岩成岩作用及储层孔隙演化[J].地质与勘探,2011,47(5):846-855. |
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| 作者姓名： | 王春连 |
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| 作者单位： | 中国地质科学院矿产资源研究所,北京 |
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| 基金项目： | 国家重点基础发展研究计划(国家973 项目)(编号2011CB403000)和国家重大科技专项(编号:2008ZX05005-002-003)联合资助 |
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| 摘 要： | 以四川盆地东北部长兴组碳酸盐岩为研究对象,应用薄片、铸体、阴极发光和X射线衍射等室内分析技术,对其成岩作用、成岩演化序列、储层孔隙演化及其特征进行了详细研究。研究区常见的成岩作用有：压实压溶作用、胶结作用、充填作用、交代作用、白云化作用、重结晶作用、溶蚀作用、破裂作用等成岩作用。其中对储层孔隙发育影响较大的主要是胶结作...
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| 关 键 词： | 碳酸盐岩 成岩作用 孔隙演化 成岩序列 四川盆地东北部地区 |
| 收稿时间： | 2010/10/19 0:00:00 |
| 修稿时间： | 3/9/2011 12:00:00 AM |
Diagenesis of the Changxing Formation Carbonate Rocks in the Northeastern
Sichuan Basin and Reservoir Porosity Evolution |
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| WANG Chun-lian.Diagenesis of the Changxing Formation Carbonate Rocks in the Northeastern
Sichuan Basin and Reservoir Porosity Evolution[J].Geology and Prospecting,2011,47(5):846-855. |
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| Authors: | WANG Chun-lian |
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| Institution: | Institute of Mineral Resouces,ChineseAcademy of GeologicalSciences,Beijing |
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| Abstract: | Abstract:The object of this work is the Changxing Formation carbonate rocks in the northeastern Sichuan basin. Our purpose is to study their diagenesis,diagenetic sequence,porosity evolution characteristics by use of analytical techniques of thin sections,casting,cathodoluminescence and X-ray diffraction.The widespread diagenesis in this area principally includes compaction,cementation,filling,replacement,dolomitization,recrystallization,dissolutionand fracture diagenesis. Of all the diagenesis,cementation,dissolution,filling,dolomitization and recrystallization contribute greatly to the porosity development of reservoirs. In the reef-beach reservoir of the Changxing Formation,micrite limestones,micrite grain limestones,sparry grain limestone,reef limestone and reef dolostones developed well. Because of the composition differences,the pore evolution owes different characteristics. According to the diagenetic order,mutual cutting relation between minerals and the porosity evolution characteristics in the diagenesis process,this paper sums up the diagenetic sequence and porosity evolution rule in the Changxing Formation.ssolution,filling,dolomitization and recrystallization contribute greatly to the porosity development of reservoirs. In the reef-beach reservoir of the Changxing Formation,micrite limestones,micrite grain limestones,sparry grain limestone,reef limestone and reef dolostones developed well. Because of the composition differences,the pore evolution owes different characteristics. According to the diagenetic order,mutual cutting relation between minerals and the porosity evolution characteristics in the diagenesis process,this paper sums up the diagenetic sequence and porosity evolution rule in the Changxing Formation. |
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| Keywords: | Carbonate rock diagenesis pore evolution diagenesis sequence northeastern Sichuan basin |
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