济阳坳陷陡坡带层序地层特征  

Sequence stratigraphic characteristics of abrupt slope belt in Jiyang Depression

作　　者：陈宝宁[1] 王宝言[1] 李保[2] 李莉[1] 

机构地区：[1]胜利油田有限公司地质科学研究院 [2]胜利油田有限公司胜利采油厂

出　　处：《油气地质与采收率》2005年第6期13-15,共3页Petroleum Geology and Recovery Efficiency

摘　　要：陡坡构造带是不对称断陷盆地重要的构造单元。为了满足济阳坳陷高精度勘探的需要,应用层序地层学理论建立了陡坡带层序地层格架;阐述了陡坡带层序地层样式以及体系域、准层序组、准层序的层序特征和叠加样式。结合各层序不同体系域发育的程度,济阳坳陷不同类型陡坡带从成因上可划分为持续下陷型、有限后退型、多次后退型三类演化及组合模式;并形成了持续下陷型和断阶型两种层序样式。Abrupt slope structure belt was one of the important structure units for asymmetric fault basin. Applying the sequence stratigraphy theory established the sequence stratus frame in the abrupt slope belt to meet the demands of high revolution exploration in Jiyang Depression. Moreover,we also illuminated the sequence strati-graphic pattern of abrupt slope belt , the sequence feature and superposition pattern of system tracts, sub-sequence group and subsequence. Combined with the growth degree of various system tracts in each sequence, three types of evolution and combination patterns were classified according to its origin in various types of the abrupt slope belt in Jiyang Depression, those were sustained sag type, finite backward type and multi-time backward type; two sequence patterns of sustained sag and fault terrace types were formed.

关 键 词：陡坡带 层序地层学 准层序 体系域 济阳坳陷 

分 类 号：TE121.3[石油与天然气工程—油气勘探]