海相深水碎屑岩层序地层学理论进展及关键问题

发布时间：2018-04-04 07:11

本文选题：自旋回　切入点：物理界面　出处：《石油与天然气地质》2017年01期

【摘要】：深水环境地质特征复杂,资料缺乏,有关海相深水碎屑岩层序地层学理论认识仍没有形成相对统一的观点。基于层序地层样式、层序单元界面、体系域构成及沉积体系分布位置等特征分析,阐述了经典的层序地层模式、基于深水体系类型划分的层序地层模式、基于深水沉积构型要素叠置样式的层序地层模式、基于四分体系域模型的层序地层模式和基于沉积物理界面的层序地层模式对深水碎屑岩沉积体系的处理方式或思路以及各种模式在深水沉积研究中的优缺点和适用条件。梳理了深水沉积"源-汇"过程与层序地层异源控制因素、深水基准面变化、深水层序地层级次划分和深水自旋回沉积等在深水层序地层学研究过程中一些关键问题,提倡在深水油气储层级别研究中,可开展基于资料和物理界面限定下高分辨率层序地层分析。
[Abstract]:The geological characteristics of deep-water environment are complex and the data are scarce. There is still not a relatively unified view on the sequence stratigraphy of marine deep-water clastic rocks.Based on the analysis of sequence stratigraphic style, sequence unit interface, system tract composition and distribution of sedimentary system, the classical sequence stratigraphic model and the sequence stratigraphic model based on deep water system classification are described.Sequence stratigraphic model based on superposition style of Deepwater sedimentary tectonic elements,Sequence stratigraphic model based on quadrature system tract model and sequence stratigraphic model based on sedimentary physical interface to depositional system of deep-water clastic rock, advantages, disadvantages and applicable conditions of various models in deep-water sedimentary research.Some key problems in the research of deep water sequence stratigraphy, such as the "source-sink" process of deep-water sedimentation and the heterogenetic control factors of sequence stratigraphy, the variation of deep-water datum level, the subdivision of deep-water sequence stratigraphy and deep-water spin-cycle deposition, are summarized.It is advocated that high resolution sequence stratigraphy analysis based on data and physical interface can be carried out in the study of deep water oil and gas reservoir level.
【作者单位】：中国石油勘探开发研究院;
【基金】：中国石油天然气集团公司科技项目(2016D-43) 国家油气重大专项(2016ZX05029005)
【分类号】：P618.13;P539.2

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