摘要
断层封闭性的评价是研究控制油气运聚的断裂输导体系的核心问题。黏土涂抹充填评价方法是评价断层封闭性的方法之一。断层封闭与否的机理是断裂带及断层两盘存在排驱压力差,黏土涂抹充填方法将断裂带中的泥质百分含量与排驱压力差的相关关系很好地反映出来。列举影响断层封闭性的诸多要素,探讨因黏土涂抹充填封闭断层的机理,进而总结了国内外用黏土涂抹充填方法研究断层封闭性的进展,重点讨论了断层泥比率法(SGR)及与其相关的定量评价方法。
The estimation of fault sealing is a key subject for studying petroleum migration and accumulation in sedimentary basins. The mechanism of fault sealing is the capillary displacement pressure in fault zone and juxtapositional faulted strata or between them,and the pressure has positive relation to the clay, amount in juxtapositional fauted strata or in the fault zone, which can be shown better by the clay smearing and filling method in their relations. The authors summarize the advance of fault sealing evaluation using the clay smearing and filling method, and discuss on the Shale Gouge Ratio method and other related quantitative estimating methods for fault sealing.
出处
《世界地质》
CAS
CSCD
2005年第3期259-264,共6页
World Geology
基金
中石化股份有限公司中南分公司资助项目(XYK-2004-01)
