The Diagenesis of Chang 8 Reservoir Sandstone and Its Effect on Reservoir Quality in the Heshui Region

• 责任者：Fan Tingting (State Key Laboratory of Continental Dynamics ; Department of Goelogy ; Northwest University ; Xi’an 710069 ; China) ; Liu Yiqun
• 刊名：Journal of Northwest University
• 出版年：2010
• 卷期：40(3)
• 关键词：砂岩储集层 ; sandstone reservoirs ; 成岩作用 ; diagenesis ; 鄂尔多斯盆地 ; Ordos Basin
• 页码：p.481-487
• 图表：5 illus., 2 tables, 12 refs.
• 分类号：1003
• issnNo：ISSN1000-274X
• isbnNo：CN61-1072/N

Through researching on diagenesis of Chang 8 reservoir sandstone in the Heshui region of Ordos Basin, it could find the reasons of low permeability and porosity, and fulfill prospect and evaluation of those zones where the high quality reservoirs are developed. Based on the sedimentary facies research, using the microscope and the scanning electronic microscope, it is analyzed at diagenetic microscopic feature.  The sandstones of Chang 8 sandstone is divided into six diagenetic lithofacies: mica intensive compaction, carbonate cement facies, feldspathic solution facies, kaolinite cement facies, chlorite remnant intergranular pore facies, chlorite remnant intergranular pore-feldspathic solution facies.