河道内单砂体成因分析与刻画——以扶余油田中38区扶余油组为例  

Genetic analysis and depiction on single sand body in channel:Taking Fuyu oil group in Middle 38 Area of Fuyu Oilfield as an example

作　　者：秦刚[1] 成群[2] 熊金红[3] 潘喻斌[4] 孙萌[4] 

机构地区：[1]长江大学工程技术学院,湖北荆州434023 [2]大庆油田有限责任公司第三采油厂,黑龙江大庆163256 [3]中国地质科学院地质力学研究所,北京100081 [4]华北油田勘探开发研究院,河北任丘062552

出　　处：《断块油气田》2014年第3期309-313,共5页Fault-Block Oil & Gas Field

基　　金：国家自然科学基金项目"沉积盆地微生物-烃-水-岩石相互作用研究"(49773198)

摘　　要：为了弄清小层内部的砂体成因及接触关系,文中以中38区块扶余油组为例,运用层次分析和分级控制等方法,将扶余油组细分到单砂体。在此基础上,通过沉积相的划分与识别,对单砂体的成因进行分析。结果表明扶余油组主要发育河道砂体、扇状远砂坝砂体、河口坝砂体及席状砂体等4种成因砂体。以高程差异、侧向叠加、河间沉积、河道砂体厚度差异,以及"厚—薄—厚"组合5种典型的河道砂体识别样式为基础,结合前人的研究理论和研究区的实际情况,根据目的层段的砂体在垂向及横向上的展布特征,将其归纳为孤立式、对接式、切叠式、叠加式和复合式5种。In order to understand the causes and contact relationship of sand body in the small layer and taking Fuyu Formation in Middle 38 Area of Fuyu Oilfield as an example, this paper subdivided the Fuyu oil group into the single sand body by the level analysis, hierarchical control and other methods. On this basis, through dividing and identifying the sedimentary facies, the causes of the single sand body were analyzed. The results show that there are mainly four kinds of the sand bodies to develop in Fuyu oil group, which are channel sands, fan-shaped distal bar sands, mouth bar and sheet sand bodies. Based on the five typical styles of the channel sand body that are elevation difference, lateral overlay, interfluvial deposition, channel sand body thickness difference and thick-thin-thick combination, combining with the theory of the previous research and the actual situation of study area and according to the distribution characteristics in the vertical section and horizontal of the sand body of the objective interval, it is concluded that the modes of vertical superposition and the contact relationship between the planes of the single sand body in the small layer are divided into five kinds types such as isolated, docking, cutting stacked, stacking and compound.

关 键 词：构型 单砂体 复合河道 扶余油田 

分 类 号：P539[天文地球—古生物学与地层学] TE122.2[天文地球—地质学]