【摘要】 大庆外围油田扶杨油层储层物性差、砂体宽度窄、横向相变快等复杂的地质条件,不仅直接影响油田的开发效果,而且在开发中也暴露出一些问题,主要表现在采油速度低、单井产能低、油井见效慢、注采不平衡等方面。以榆树林油田扶杨油层为例在认真分析目前开发井网条件下对砂体的控制程度,通过开展精细地质描述研究,剖析河道砂体地层成因单位和构成,认为应用沉积体系分析法、等级界面以及构成单元是研究和确定河流相砂体横向连通程度的一种新的方法,同时通过选择典型的井组应用该方法对扶杨油层注采不平衡矛盾进行了精细解剖和分析。更多还原

【Abstract】 The geologic conditions of Fuyang reservoir of Daqing periphery oilfield is relatively complex, which are characterized by poor reservoir physical properties, narrow sandbody width and fast variation on transverse direction. During the process of development , some problems are exposed such as low oil production speed, low individual well oil production, obtaining effect slowly, unbal- ance injection and production quantities. We take Fuyang formation of Yushulin oilfield as example, analyze the control degree of current pattern to sandbody seriously, make a detail study on constitution and forming unit of channel sandbody stratum through carrying out detail geology study. It’ s believed that applying sedimentary system analysis method, grade interface and forming unit method is a kind of new method to study and determine the transverse connection degree of fluvial sandbodies, at the same time, we adopt this method to make a detail study on selected typical well groups where the contradiction of unbalance injection and production quantities are serious.更多还原