| 沉积体系域类型、特征及石油地质意义 |
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| 引用本文： | 吴因业,张天舒,张志杰,崔化娟.沉积体系域类型、特征及石油地质意义[J].古地理学报,2010,12(1):69-81. |
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| 作者姓名： | 吴因业 张天舒 张志杰 崔化娟 |
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| 作者单位： | 中国石油勘探开发研究院，北京 100083 |
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| 摘 要： | 不同学者对体系域的分类及体系域界面的划分有不同的理解,甚至在体系域的发育和分布上,不同盆地都会得出不同的研究结论。滨线迁移类型决定了特定沉积趋势下地层单元的外形和堆积模式,即体系域类型。文中把体系域划分为常规体系域和非常规体系域两大类,常规体系域指经典层序地层学中定义的常见体系域,即低位体系域、海侵体系域(或湖侵体系域)和高位体系域,这些体系域与基准面(相对海平面或相对湖平面)变化引起的滨线迁移密切相关。非常规体系域泛指常规体系域以外的与特定沉积环境相关的所有体系域类型,包括冲积扇—河流沉积体系中的高可容空间体系域和低可容空间体系域、缓坡背景下滨浅海的强制海退体系域、大陆架背景下浅海—深海体系的下降期体系域、滨浅海(湖)环境的海退体系域(或湖退体系域)。体系域和基准面关系的可预测性使得层序地层学成为一种寻找盆地内自然资源的极为有效的工具,通过它可以追踪盆地演化不同体系域阶段沉积相的横向变化,帮助认识有经济价值的沉积矿床以及油气储集层、烃源岩和盖层在时间和空间范围内的发育区。这也导致了油气勘探从构造圈闭向复合圈闭和岩性圈闭的转变。
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| 关 键 词： | 层序地层学 储集层 体系域 沉积体系 可容空间 |
Types and characteristics of depositional systems tract and its petroleum geological significance |
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| Wu Yinye,Zhang Tianshu,Zhang Zhijie,Cui Huajuan.Types and characteristics of depositional systems tract and its petroleum geological significance[J].Journal of Palaeogeography,2010,12(1):69-81. |
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| Authors: | Wu Yinye Zhang Tianshu Zhang Zhijie Cui Huajuan |
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| Institution: | Wu Yinye Zhang Tianshu Zhang Zhijie Cui Huajuan Research Institute of Petroleum Exploration & Development,PetroChina,Beijing 100083 |
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| Abstract: | Different scholars have different understanding about the classification of systems tract and division of systems tract surface. Even with regard to the development and distribution of systems tract, they have different conclusions from different basins. The shapes and accumulative models of strata unit,i.e. the types of systems tracts in a given depositional trend depend on types of shoreline shift. Systems tracts are divided into conventional and unconventional ones in this paper. The conventional systems... |
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| Keywords: | sequence stratigraphy reservoir systems tract depositional system accommodation |
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