Recognition of Auto-Cycle and Allo-Cycle and Its Role in Strata Correlation of Reservoirs
详细信息
- 责任者：Ji Youliang (College of Geosciences ; China University of Petroleum ; Beijing 102249 ; China) ; Wu Shenghe
- 刊名：Journal of China University of Petroleum
- 出版年：2012
- 卷期：36(4)
- 关键词：层序地层学 ; sequence stratigraphy ; 地层对比 ; stratigraphic correlation ; 油气藏 ; oil and gas reservoir
- 页码：p.1-6
- 图表：illus., 13 refs.
- 分类号：1003
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
On the basis of the analysis of the developing background,controlling factors and the scale of auto-cycle and allo-cycle,the recognition method of auto-cycle and the effects and alternation of auto-cycle on allo-cycle were discussed.The results show that the lower frequency scale sequence or cycle (1-4 scale) are allo-cycle produced by base level change,middle frequency scale sequence or cycle (5-6 scale) are allo-cycle reformed or highly effected by auto-cycle,high frequency scale sequence or cycle (higher than 7 scale) are auto-cycle.The characteristics of allo-cycle are frequently destroyed by auto-cycle,which makes it difficult to do correlation according to allo-cycle.But the auto-cycle can be recognized by correlating the correlation profiles which are parallel and perpendicular to the sedimentary source direction. The characterized and widely spread event deposits (auto-cycle) are important to the high frequency scale strata correlation.
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