摘要
为有效地指导火山岩油气藏的勘探 ,综合野外调查和深井钻探资料 ,从火山岩的旋回特征入手 ,探讨了构造的幕式演化对火山岩纵向的控制作用 ,分析了火山岩的成藏条件。认为松辽盆地断陷期火山岩区域上为兴安岭群火山岩的一部分 ,纵向上可以划分为火石岭组和营城组两套火山岩旋回 ,它们在岩石类型、化学成分和分布规律上的差异 ,是断陷期幕式构造演化的反映。火山岩储集条件受岩相控制 ,丰富的油源 ,良好的盖层及适当的圈闭条件相匹配 。
Volcanic rock of Songliao Basin,which is divided into Huoshiling formation and Yingcheng formation,is the part of Xinganling Group.The difference of types of rocks,chemical constitution and distribution characteristics is the result of episodic tectonic evolution in depressed stage.Volcanic reservoir is mainly controlled by rock facies.Plentiful oil-gas supply,reservoirs and cap rocks well-developed and various kinds of traps well-corresponded are the foundations of reservoir formation.
出处
《大庆石油地质与开发》
CAS
CSCD
2002年第5期15-17,共3页
Petroleum Geology & Oilfield Development in Daqing
关键词
松辽盆地
断陷期火山岩
幕式构造演化
Songliao Basin
volcanic rock in depressed stage
episodic tectonic evolution
