摘要
以详细的野外地质调查和岩心观察以及测井解释结果为基础,分析了十屋地区的裂缝类型和产状特征,结合十屋地区的主要构造形成期次以及相对应的应力场特征,较为全面的研究了裂缝发育与构造运动的关系。研究认为:十屋地区的构造运动主要有五期,裂缝主要受构造运动以及构造的影响,不同期的构造运动形成不同的裂缝,根据构造应力,把本区裂缝划分为四种类型。研究成果对加深油田储层裂缝认识,指导油田制定合理开发方式以及开发后期调整具有重要意义,同时对裂缝型低渗透砂岩油藏的开发,具有指导意义。
Based on the detailed field geological investigation, core observation and well logging interpretation results, this paper analysed the characteristics of fracture types and occurrence in Shiwu area. Combined with the main structure formation stage and corresponding stress field features, this paper also conducted research on the relationship between fiacture development and tecton- ic movement. The results showed that： there were five periods of tectonic movement in Shiwu area; fractures were mainly influenced by tectonic movements and structure; different fractures formed in different periods of tectonic movement. Accoding to tectonic stress, the fractures in this area were divided into four types. The results have great meanings in deepening the understanding of res- ervoir fractures and guiding the design of resonable oilfield development methods and adjustment in later development period. Meantime, it has guiding significance to the development of fractured low-permeability sandstone reservoirs.
出处
《油气藏评价与开发》
2011年第6期13-16,20,共5页
Petroleum Reservoir Evaluation and Development
关键词
裂缝类型
产状
构造运动
营城组
十屋油田
fracture type, occurrence, tectonic movement, Yingcheng formation, Shiwu oilfield
