中国双相沉积盆地、古老结晶基底与东北地区深层潜在油气藏  

Dual-Phase Sedimentary Basins and Old Crystalline Basement in China and Deep Oil and Gas Reservoirs in Northeast China

作　　者：滕吉文[1] 田有[1] 刘财[2] 韩立国[2] 

机构地区：[1]中国科学院地质与地球物理研究所,北京100029 [2]吉林大学地球探测科学与技术学院,长春130026

出　　处：《吉林大学学报（地球科学版）》2008年第4期527-552,共26页Journal of Jilin University：Earth Science Edition

基　　金：中国科学院知识创新工程重要方向项目(KZCX3-SW-148);国家自然科学重点基金项目(40434009);国家自然科学基金项目(40674048)

摘　　要：基于我国双相沉积盆地与东北地域深部岩性地层潜在油气的必然前景,故必须把握全区沉积建造、结晶基底的起伏,火山岩分布和油、气盆地在浅部与深部不同岩相的空间展布;特别要在新的理念导向下,突破已有框架,重新进行油气远景的剖析和区划,深化认识油气形成和储集空间展布的深层动力过程。为此,揭示不同构造地域“透明”沉积建造、古老结晶基底和壳、幔深层动力学响应,必将成为我国在深部发现大型和超大型潜在油气藏的关键所在。通过国内外油气能源分布状况的研究指出,中国在多元共享世界能源的同时,必须立足于本土并强化安全、可靠与可持续供给的能源战略后备基地的建设。在剖析和研究我国沉积盆地中油气储层、沉积建造和结晶基底的基点上发现,在沉积盆地地域陆相地层下面仍普遍存在着海相地层,即盆地应为双相沉积盆地（陆相＋海相）;基底不应专指中、新生代沉积地层的底部,而应为古老的变质岩基底,即结晶地壳的顶部。基于这样的理念和对几个双相沉积盆地层序实例的分析提出：我国油气能源勘探在深部尚具有广阔的空间;在我国东北地域应全面进行双相沉积建造、火山岩分布、古老结晶基底的高精度探查;油气和沉积盆地形成的深层过程、动力学响应乃东北大庆、吉林等油气田及深部和周边地域发现新的油气藏、大幅度提升油气藏深部潜在空间的必须。基于双相沉积盆地和古老变质岩基底的研究,对在东北地域查明双相沉积建造、古老结晶基底、火山岩分布和第二深度空间（5 000-10 000 m）油气藏地球物理勘探与整体规划提出了布署和建议。On the basis of dual-phase sedimentary basin and stratigraphic potential oil and gas in Northeast China, undulations of crystalline basement, distribution of volca lithofacies in the shallow and deep area of the oil and gas s in China and fo we must hold the reground of deep lithologic sedimentary construction, nic rocks and spatial distribution of different basin in the whole region. Especially, on the guidance of new conception, we should break the existing framework to reregionalize the hydrocarbon prospects and study the deep dynamical process of the hydrocarbon generation and distribution of reservoir space. So revealing the structure of the sedimentary layer and crystalline basement and studying the deep dynamic response of crust and mantle are very important to discover the large and super large potential oil and gas fields in our country. Through analyzing the distribution of oil and gas resources at home and abroad and studies in the process of industrialization and economic development, we suggest that we must be established in mainland and strengthen establishment of save, reliable and sustainable development reserved energy base while multivariate sharing the world sources. Base on analyzing and studying the hydrocarbon reservoir, sedimentary construction and crystalline basement of sedimentary basins in China, we discover that there exist the marine sediments beneath the continental sediments widely, i. e, dual-phase sedimentary basins （continental phase and marine phase）. Here the basement is not the bottom of Mesozoic and Cenozoic basement, but is the old metamorphic rocks basement, i. e, the top of crystal crust. From the information mentioned above and several examples of the sequences of dual-phase sedimentary basins, we consider that exploration of oil and gas sources has a broad space in deep part. Carrying on high-resolution investigations in the dual-phase sedimentary construction, volcanic rock distribution, old crystalline basement and deep process and dynamics response of the format

关 键 词：双相沉积盆地 古老变质岩基底 第二深度空间 深层潜在油气藏 地球物理勘探 

分 类 号：P618.13[天文地球—矿床学]