南堡凹陷火山岩时空展布特征及岩石类型  

Study on space-time distribution characteristics of volcanic rock and rock types of Nanpu depression

作　　者：杜景霞[1] 石文武[1] 王全利[1] 周贺[1] 夏秋君[1] 

机构地区：[1]中国石油冀东油田分公司勘探开发研究院,河北唐山063004

出　　处：《石油地质与工程》2013年第6期11-14,148,共4页Petroleum Geology and Engineering

摘　　要：利用钻井岩心、分析化验等资料,运用岩石学、储层地质学等理论和方法,对南堡凹陷古近纪和新近纪火山岩的类型、时空分布及其成藏进行了研究。结果表明,南堡凹陷岩浆岩可分为侵入岩和喷出岩2大类10种岩性;整体演化过程可划分为2个旋回4个喷发幕,总体上呈南北向分布;早期火山岩具备成藏条件,成藏因素与火山岩的储集空间等有关,晚期火山岩可作为良好的盖层。该研究对于指导南堡凹陷火山岩勘探具有重要的现实意义和理论价值。By use of drilling core and analytical chemical data,in combination with the theory and methods of petrology and reservoir geology,the study on volcanic rock types of Nanpu depression in Paleogene and Neogene,the time-space distribution and hydrocarbon accumulation has been carried out.The results indicate the magmatic rock of Nanpu depression can be divided into two categories,intrusive rock and extrusive rock 10 lithologies in all.The whole evolution process can be divided into 2 cycles and 4 eruption curtains,generally with north-south direction.Early volcanic rocks possess reservoir-forming conditions and the accumulation factors are related with reservoir space of volcanic rocks,while the late volcanic rocks are regarded as good cap rocks.Therefore,the study is of great practical and theoretical value for volcanic rock exploration of Nanpu depression.

关 键 词：南堡凹陷 喷发序列 新生代玄武岩 岩石类型 

分 类 号：TE112.222[石油与天然气工程—油气勘探]