Jurassic Diagenesis and Its Control on Reservoir Quality in Ke-Bai Area, Northwestern Margin of Junggar Basin，

详细信息   

• 责任者：Zhu Shifa (State Key Laboratory of Petroleum Resource and Prospecting ; China University of Petroleum ; Beijing 102249 ; China) ; Zhu Xiaomin
• 刊名：Geological Journal of China Universities
• 出版年：2008
• 卷期：14(2)
• 关键词：成岩作用 ; diagenesis ; 砂岩储集层 ; sandstone reservoirs ; 准噶尔盆地 ; Junggar Basin
• 页码：p.172-180
• 图表：7 illus., 2 tables, 12 refs.
• 分类号：1003
• issnNo：ISSN1006-7493
• isbnNo：CN32-1440/P

摘要

Analysis of laboratory data indicates that the Jurassic reservoir of Ke-Bai area in northwestern margin of Junggar asin experienced compaction, cementation, dissolution and other diagenetic processes. Compaction and dissolution are main diagenetic processes that control the reservoir quality. The compaction is the major reason for reducing storage space. It is dominated by the mechanical compaction with little significance of compaction-dissolution. The cementation is mainly of carbonate character, with little pyrite-cementation and less analcidite- and kiesel-cementation. The dissolution comprises carbonate cement dissolution, lithic grains dissolution and detrital feldspar dissolution. The reservoir pores evolved from primary to secondary pores.