Diagenesis of Sandy Conglomerate Reservoir in Northern Steep Slope of Bonan Subsag
详细信息
- 责任者：Zan Ling (State Key Laboratory of Petroleum Resource and Prospecting ; China University of Petroleum ; Beijing 102249 ; China) ; Zhang Zhihuan
- 刊名：Natural Gas Geoscience
- 出版年：2011
- 卷期：22(2)
- 关键词：砂岩储集层 ; sandstone reservoirs ; 成岩作用 ; diagenesis ; 济阳坳陷 ; Jiyang Depression
- 页码：p.299-306
- 图表：6 illus., 12 refs.
- 分类号：1003
- issnNo：ISSN1672-1926
- isbnNo：CN62-1177/TE
摘要
Based on bulk analyses of casted thin section, scanning electro microscope, cathode luminescence and X radial-diffract, the types and main controlling factors of sandy conglomerate reservoir diagenesis in north steep slope of Bonan subsag were studied. The diagenetic evolution stage was divided and the controlling functions of different diagenetic facies to reservoir quality were also analysed. The results indicated that the lower Es3 and Es4 sandy conglomerate reservoirs were in the middle diagenetic phase A1 to A2, which corresponded to the main hydrocarbon generating period of organic matter. Reservoirs controlled by strong consolidation and later carbonate cemented diagenetic facies have bad physical property. Studies above are of great importance in looking for favorable reservoirs.