Reservoir Sandstones and Their Physical Properties of the Chang-6 Oil Measures in the Yanchang Formation, Huaqing Region, Ordos Basin
详细信息
- 责任者：Su Nan (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Long Hao
- 刊名：Sedimentary Geology and Tethyan Geology
- 出版年：2011
- 卷期：31(1)
- 关键词：砂岩储集层 ; sandstone reservoirs ; 储层性质 ; reservoir properties ; 鄂尔多斯盆地 ; Ordos Basin
- 页码：p.65-71
- 图表：11 illus., 3 tables, 7 refs.
- 分类号：1003
- issnNo：ISSN1009-3850
- isbnNo：CN51-1593/P
摘要
The emphasis of this study is placed on the types and characteristics of the reservoir sandstones and their bearings on physical properties of the Chang-6 oil measures in the Yanchang Formation, Huaqing region, Ordos Basin. The reservoir sandstones are represented by lithic feldspathic sandstone with finer grain sizes and moderate to poor sorting. The interstitial materials contain carbonate minerals and clay minerals. The dissolution of feldspar from the sandstones is believed to be a key factor for the improvement of the physical properties. The higher contents of the interstitial material give rise to the plugging and filling of pore throats, and thus result in the deterioration of the physical properties.
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