四川盆地加里东古隆起震旦系气藏成藏控制因素  

CONTROLLING FACTORS OF SINIAN GAS POOLS IN CALEDONIAN PALEOUPLIFT,SICHUAN BASIN

作　　者：李国辉[1] 李翔[1] 杨西南[1] 

机构地区：[1]四川石油管理局地质勘探开发研究院,四川成都610051

出　　处：《石油与天然气地质》2000年第1期80-83,共4页Oil & Gas Geology

摘　　要：四川盆地加里东古隆起的形成演化具有长期性和复杂性 ,使得古隆起震旦系的天然气成藏有早有晚。早期成藏主要发生在印支期 ;晚期成藏主要发生在喜山期。每期成藏可以划分出 3种不同的成藏类型 :即高捕集高阻抗、高捕集低阻抗及低捕集。天然气藏的主要控制因素为“两高一强一关联” ,即较高的封存能力、较高的构造部位、较强的构造形变 ,晚期形成的圈闭与古油气藏具有密切关联。The formation and evolution of Caledonian paleo-uplift in Sichuan Basin possessed long-term and complicacy.This resulted in different pool-forming stages of Sinian natural gas of the uplift.The early stage of pool-forming occured in Indo-Chinese Epoch;the late stage was in Himalayan Epoch.Each pool-forming stage could be divided into three types i.e.high entrapment with high resistance,high entrapment with low resistance and low entrapment.The main controlling factors of Sinian gas pools in Caledonian paleo-uplift are high sealling capability,high position of the structure;strong tectonic deformation and a close interconnection between the late-stage formed traps and the paleo-reservoirs.

关 键 词：震旦系 古隆起 气藏 成藏类型 四川盆地 

分 类 号：P618.130.2[天文地球—矿床学] R618.130.1[天文地球—地质学]