摘要
在对地震、测井和钻井等资料详细分析的基础上,将济阳坳陷红柳地区在下第三系划分出了7个三级层序,19个体系域.其中层序Ⅰ、层序Ⅳ为两个T-R层序分为两个体系域,即湖扩展和高位体系域,其他层序均为三分层序,划分为三个体系域即低位、湖扩展(水进)和高位体系域.在层序地层单元划分和对比的基础上,结合断层上下盘地层厚度的差异和地层厚度的变化反映古地形,认为济阳坳陷红柳地区在下第三系沉积时期,发育两种不同类型的构造坡折带,并建立了该区的构造坡折带层序地层学模式,研究了构造坡折带层序地层学模式与含油气性的关系,认为第Ⅰ、Ⅱ层序间的界面附近可形成有利的地层不整合覆盖圈闭与构造-岩性圈闭;第Ⅳ层序低位域可作为油气的运载层,在合适构造的匹配下,可形成有利的构造圈闭或构造-岩性圈闭,对有利区带做出了预测.
On the basis of analysis of the data of seismic ,well-log,7 sequence, 19 system tracts were identified lower Tertiary in Hongliu area of Jiyang depression. Sequence 1 and sequence 6 are T-R sequence, which are composed of two system tracts, that is transgresive system tract and highstand system tract. The other sequences can be divided into 3 system tracts, that is lowstand system tract, transgresive system tract and highstan identification and correlation of stratigraphic unite, and d system tract. On the basis of the paleotopograghy refleted by the study of variation of the thickness of strata, it is thought that in the west part of Hongliu area of Jiyang depression, two different kind of slope belt were developed in the period of sedimentation of lower tertiary, sequence stratigraphy models of steep slope belt were built up. The relationship between the slope sequence stratigraphy models and the oil and gas was studied. It is considered that near the boundary of sequence Ⅰ and sequence Ⅱ there are unconformity oil trap and structure-lithic trap, lowstand system tract of sequence Ⅳ can act as oil transgression zone, in suitable condition structure trap and and structure-lithic trap can be formed, and the profitable area was predicted.
出处
《应用基础与工程科学学报》
EI
CSCD
2006年第1期23-32,共10页
Journal of Basic Science and Engineering
关键词
层序地层学
济阳坳陷
构造坡折带
sequence stratigraphy
Jiyang depression
structure slop belt
作者简介
高聚同（1962-），男，高级工程师
