| 鸡西盆地下白垩统含煤层系低孔低渗砂岩的成因探讨 |
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| 引用本文： | 尤丽,刘立,彭晓蕾,曲希玉.鸡西盆地下白垩统含煤层系低孔低渗砂岩的成因探讨[J].世界地质,2007,26(2):218-223. |
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| 作者姓名： | 尤丽 刘立 彭晓蕾 曲希玉 |
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| 作者单位： | 吉林大学,地球科学学院,长春,130026 |
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| 基金项目： | 国土资源部国家油气专项 |
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| 摘 要： | 黑龙江鸡西盆地下白垩统城子河组和穆棱组是主要的含煤系地层,岩石类型为长石岩屑砂岩和岩屑长石砂岩,成岩作用主要为压实作用、胶结作用、溶蚀溶解作用及交代作用等,露头砂岩经历了表生成岩作用。压实作用和胶结作用是储层砂岩物性差的重要原因,二者相比,前者对该区孔隙度减少贡献更大。对比露头砂岩与岩芯砂岩,露头砂岩的储层物性更好。
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| 关 键 词： | 压实作用 胶结作用 孔隙度 渗透率 鸡西盆地 |
| 文章编号： | 1004-5589（2007）02-0218-06 |
| 修稿时间： | 2006-12-062007-03-27 |
Origin of sandstone with low porosity and permeability from Lower Cretaceous coal measure strata in Jixi Basin |
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| YOU Li,LIU Li,PENG Xiao-lei,QU Xiyu.Origin of sandstone with low porosity and permeability from Lower Cretaceous coal measure strata in Jixi Basin[J].World Geology,2007,26(2):218-223. |
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| Authors: | YOU Li LIU Li PENG Xiao-lei QU Xiyu |
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| Institution: | College of Earth Sciences, Jilin University, Changchun 130026, China |
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| Abstract: | Lower Cretaceous Chengzihe and Muling formations in Jixi Basin of Heilongjiang are the main measure strata composed mainly of feldspar-debris sandstone and debris-feldspar sandstone.The diagenesis mainly includes compaction compaction,cementation,dissolution and metasomatism.The outcropped sandstone underwent epidiagenesis.The compaction and cementation is the important reasons as the physical property of sandstone in reservoir bed is poor.Compared the two factors the former contributes more in reduction of porosity in the studied area.In contrast of the outcropped sandstone with the core sandstone,the quality of reservoir of the outcropped sandstone is better. |
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| Keywords: | compaction cementation porosity permeability Jixi Basin |
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