Diagenesis of Upper Paleozoic Sandstone and Its Effect on Reservoir in Southern North China
详细信息
- 责任者：Zhang Wei (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Li Yong
- 刊名：Fault-Block Oil and Gas Fields
- 出版年：2011
- 卷期：18(5)
- 关键词：储集层 ; reservoirs ; 岩石学 ; petrology ; 成岩作用 ; diagenesis
- 页码：p.578-581
- 图表：2 illus., 4 tables, 11 refs.
- 分类号：1003
- 出版序号：723
- issnNo：ISSN1005-8907
- isbnNo：CN41-1219/TE
摘要
The data of outcrop,cast slice,thin sections,scanning electron microscopy and X-diffraction were applied to analyze the petrology,diagenesis,diagenetic stage division and its effect on the porosity of Upper Paleozoic sandstone in the southern North China.The results show that the rock types are feldspar quartz sandstone,lithic quartz sandstone,arkose and feldspathic lithic sandstone in the study area of Upper Paleozoic reservoir.These sandstones have already been in stage A and B of the middle diagenetic stage.They experienced compaction,cementation,metasomatism,dissolution and fracturing.Among them,compaction and cementation are the main destructive diagenesis;dissolution and fracturing are major constructive diagenesis,especially feldspar and carbonate dissolutions are important controlling factors for favorable physical properties of reservoir.
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