摘要
准噶尔盆地达巴松地区侏罗系三工河组以河流相储层为主,但其砂体发育特征、模式及平面展布规律尚不明确。以沉积模式为指导,采用地质、地震一体化的属性聚类分析技术对三工河组河道型储层砂体进行了分析和预测。通过砂体井震精细标定、解释和沉积相精细分析,明确了沉积相类型为远源中—细粒、较强水动力曲流河,储层砂体类型为边滩、天然堤和决口扇砂体。优选出5种相关性最好的属性并进行聚类分析,明确了砂体具有中等弧长、低瞬时频率和中—高振幅的定量特征。预测结果符合程度良好,有效地指导了该区油气勘探。
The Jurassic Sangonghe Formation in the Dabasong Area,the Junggar Basin,is dominated by fluvial channel reservoirs with unclear sandstone development characteristics,patterns and horizontal distribution. Under the guideline of sedimentary pattern,the attribute- cluster analysis techniques involving integration of geologic and seismic data are deployed to analyze and predict sandstone development in the Sangonghe Formation fluvial channel reservoirs. Through sandstone well- seismic data calibration,interpretation and detailed analysis of sedimentary facies,the sedimentary facies are determined to be far- source medium to fine particles in meandering river with relatively high hydraulic power. Major sandstones in reservoirs include sediment bars,natural levee and crevasse splay sandstones. Five attributes that are best correlated are selected for cluster analysis,highlighting such quantitative characteristics of these sandstones as medium arc length,low instantaneous frequency and medium- high amplitudes. Prediction results coincide well with field data,and provide valuable guidance for oil and gas exploration in the study area.
出处
《特种油气藏》
CAS
CSCD
北大核心
2015年第4期25-28,152,共4页
Special Oil & Gas Reservoirs
基金
国家科技重大专项"准噶尔盆地岩性地层油气藏富集规律与目标评"(2011ZX05001-006)
关键词
属性聚类分析
储层预测
河道型砂体
达巴松地区
准噶尔盆地
attribute-cluster analysis
prediction of reservoir
fluvial channel sandstone reservoir
Dabasong Area
Junggar Basin
作者简介
孙靖（1982-），男，工程师，2005年毕业于大庆石油学院资源勘查工程专业，2008年毕业于中国石油大学（北京）矿产普查与勘探专业，获硕士学位，现主要从事沉积、储层、层序地层学以及石油地质综合研究工作。
