河流相复合砂体结构特征探讨
Research on Composite Sandbody Structure Characteristics of Fluvial Reservoirs
摘要: 河流相储层砂体是一种重要的储集类型。综合应用野外露头、现代沉积、测井、地震等资料，以河流相平面形态组合类型和废弃河道结构特征研究为基础，将多期次河流相砂体结构划分为四种类型：多边分叉式、多边合并式、单边式及侧向切叠式。河流相砂体结构受河道内部增生样式和A/S比值的影响。研究表明，河道内部增生样式主要包括侧向迁移、顺流迁移、溯源迁移三种类型。随着A/S比值增大，曲流河点坝砂体由鳞片状逐步向点状发展。
Abstract: Fluvial sandbody is a kind of important reservoir type. According to outcrop, modern sedimentation, logging and seismic data, sand structural unit of different-stage meandering rivers are divided into four types which are multilateral bifurcation type, multilateral combined type, single type and lateral digestion type based on combination types of planar morphology and structural characteristics of abandoned channel. Sand structure of fluvial sandbodies is influenced by hyper-plasia style within the channel and value of A/S. The research shows that hyperplasia style of channel includes three types which are lateral migration, downstream migration and tracebility migration. With the increase of the value of A/S, type of meandering river sandbodies changes from flaky texture to dotted texture.
文章引用：解超, 陈飞, 刘振坤, 张雨晴, 王盘根. 河流相复合砂体结构特征探讨[J]. 地球科学前沿, 2018, 8(3): 608-617. https://doi.org/10.12677/AG.2018.83065

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