西峰油田259井区长3_2油层沉积微相研究  

The Sedimentary Facies of Chang3_2 Reservoir in Wellblock 259 of Xifeng Oilfield

作　　者：何崇康 刘军峰 邓磊[3] 

机构地区：[1]中石油长庆油田分公司油田开发处,陕西西安710000 [2]中石油长庆油田分公司第二采油厂,甘肃庆阳745000 [3]长江大学资源与环境学院,湖北武汉430100

出　　处：《长江大学学报（自科版）（中旬）》2016年第11期14-18,共5页Journal of Yangtze University(Nature Science Edition)

基　　金：中国地质调查局项目(1212011120965)

摘　　要：以沉积岩石学、石油地质学理论为指导,结合前人研究成果,在综合分析岩心、薄片、测录井等资料的基础上,对西峰油田259井区长3_2油层的沉积微相进行了系统的研究。结果表明,区内长3_2油层岩性主要为砂岩、泥岩、泥质粉砂岩,主要发育三角洲前缘亚相,进一步可划分为水下分流河道、水下分流间湾、河口砂坝、席状砂等微相类型,长3_2油层各小层之间的砂体展布特征具有一定的继承性,延南西-北东向伸展,河道在研究区中部汇合,后再分叉。Guided by sedimentary petrology and petroleum geology,combined with previous research results,the data of core,thin section,geologic logging and so on were analyzed.The sedimentary facies of Chang3_2 Reservoir in Wellblock 259 of Xifeng Oilfield was systematically researched.The result shows that the lithology of Chang3_2 Reservoir is mainly sandstone,mudstone,argillaceous silt sandstone,where delta front subfacies is mainly developed,it can be further divided into the underwater distributive channel,underwater inter-distributary bay,mouth sand bar,sheet sand and other micro facies types.The characteristics of sandbody distribution between each sublayer of Chang3_2 Reservoir have certain succession.The channel extends along the direction of SW-NE,and converges in the middle of the studied area,then departs again.

关 键 词：西峰油田 长32油层 沉积微相 展布特征 

分 类 号：TE121.3[石油与天然气工程—油气勘探]