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(2010) 歧口富油气凹陷结构构造、层序地层及沉积体系研究. 大港油田科技报告,

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  • 标题: 岐口凹陷盆缘层序结构模式研究Basin Marginal Sequence Structure Model Study in the Qikou Sag of Dagang Oilfield

    作者: 陈宪保

    关键字: 歧口凹陷, 盆缘层序, 结构模式Qikou Sag of Dagang Oilfield, Basin Marginal Sequence, Structure Model

    期刊名称: 《Advances in Geosciences》, Vol.4 No.6, 2014-12-18

    摘要: 黄骅坳陷歧口凹陷属于典型断陷盆地,盆缘面积大、剩余资源量多、成藏条件复杂、具备形成大型油气田的石油地质条件。本文应用层序构成样式结合构造活动、盆缘背景、物源供给、沉积相类型及展布对歧口凹陷盆缘层序结构模式进行研究。这是未来油气田勘探的一个总体趋势。研究认为:歧口凹陷盆缘层序结构模式分为:断控多级断阶带–跨凹层序结构模式、轴向断坡带层序结构模式、沙一段时期挠曲坡折带层序结构模式、东营组时期挠曲坡折带层序结构模式四种层序结构模式。Qikou sag of Huanghua depression is classical faulted basin. It has large marginal basin areas and remaining resources. Its accumulation condition is complicated and it has the petroleum geology condition to form a large oil and gas field. The paper uses the sequence structure mode combined with structure movement, basin marginal background, provenance supply, type of the sedimentary facies and its distribution to study the Qikou sag’s basin marginal sequence structure mode. It is becoming an overall trend in future oil and gas exploration. With the conclusion of study, Qikou sag’s basin marginal sequence structure mode has four sequence structure modes: more fault zone paleoslop break-over sag sequence structure mode, axial fault zone paleoslop break-sag sequence structure mode, Es1 deflection paleoslop break sequence structure mode and Ed deflection paleoslop break sequence structure mode.