• 责任者：Feng Juanping (College of Geology and Environment ; Xi’an University of Science and Technology ; Xi’an 710054 ; China) ; Wang Ruogu
• 刊名：Geological Bulletin of China
• 出版年：2013
• 卷期：32(9)
• 关键词：浊积岩 ; turbidite ; 砂岩储集层 ; sandstone reservoirs ; 鄂尔多斯盆地 ; Ordos Basin
• 页码：p.1477-1483
• 图表：4 illus., 28 refs.
• 分类号：1003
• issnNo：ISSN1671-2552
• isbnNo：CN11-4648/P

     Based on the data analysis of thin-section, casting lamella, scan electronmicroscope and intrusive mercury etc, the character- istics of lithology and diagenesis are researched on the Upper Triassic Chang 6 and Chang 7 turbidite reservoirs and analyzed their in- fluence on the reservoirs quality of Fuxian and Huangling areas in Ordos Basin. It is shown that the sandstones are granule arkose, which were formed by four types diagenesis that were compaction, cementation, metasomatism and dissolution. It is suggested that the compaction and cementation resulted in lossing primary porosity of the turbidites, and the porosity loss caused by compaction and ce- mentation are 23.1% and 6.5%, respectively. But due to thin film of chlorite occurred around clastic granules, a part of primary inter- granular pore were preserved, and a large of secondary pore were formed with dissolution and metasomatism, which improved the reservoir quality for the turbidites.