安塞油田Y区储层沉积微相研究  

Research on Sedimentary Microfacies of District Y Reservoir in Ansai Oilfield

作　　者：雷喆[1] 

机构地区：[1]西安石油大学,陕西西安710065

出　　处：《辽宁化工》2015年第2期225-226,共2页Liaoning Chemical Industry

摘　　要：通过岩心描述和分析,安塞油田Y区长6储层主要为前三角洲亚相沉积的内侧部分,主要沉积微相有河口坝、河道侧翼、水下分流河道、席状砂及分流间湾沉积。同时根据粒度概率曲线等分析了该区沉积相类型及特征,反映三角洲前缘水动力作用较弱、颗粒较细、分选较好特点,以及该区结构成熟度高,生物化石含量低等特点。Through core description and analysis, sedimentary microfacies of Chang 6 reservoir in district Y ofAnsal oflfieltl were studied. The resutts show that the Chang 6 reservoir is mainly the inside part of the delta front subfacies deposition, the main sedimentary microfacies include mouth bar, channel flank, underwater distributary channel, sand sheet and distributary bay deposit. At the same time, characteristics and types of sedimentary facies in the district were analyzed by grain size probability curve. The results show that the delta front hydrodynamic effect is weak, grain is fine, separation characteristics are good, as well as the structure maturity is high, content of fossils is low.

关 键 词：安塞油田 沉积微相 三角洲前缘 长6储层 

分 类 号：TE122[石油与天然气工程—油气勘探]