下扬子地区中古生界叠加改造特征与多源多期成藏  

SUPERIMPOSITION AND MODIFICATION OF THE MESOZOIC AND PALEOZOIC BASINS AND MULTI-STAGES OF HYDROCARBON ACCUMULATION WITH MULTIPLE SOURCE ROCKS IN LOWER YANGTZE AREA

作　　者：郭彤楼[1] 

机构地区：[1]中国石化南方勘探开发分公司,云南昆明650200

出　　处：《石油实验地质》2004年第4期319-323,共5页Petroleum Geology & Experiment

摘　　要：下扬子区是一个经历了多期构造运动改造的叠合盆地,2种构造体制、2个世代盆地造就了下扬子地区复杂的构造格局。朱家墩气田等4种典型油气藏表明,中古生界在地史上曾经发生过大规模的油气生成、运移和聚集成藏,本区确实存在多源、多期成藏,立足于寻找有中上古生界地质实体、具备后期保存条件的地区,一定能实现中古生界油气勘探的重大突破。Lower Yangtze area is a superimposition basin modified by multiple tectonic movement. It showed complicated structural pattern as a result of existence of two tectonic mechanisms and two generations of basins.Four typical oil and gas fields, such as Zhujiadun gasfield, indicated that a large scale of hydrocarban generation, migration and accumulation were occurred during Mesozoic and Paleozoic. There are reservoirs with multiple sources and repeatedly accumulation in the area. The area with Upper Paleo-zoic and Mesozoic geological bodies and good preservation condition is potential target for petroleum exploration.

关 键 词：下扬子地区 叠合盆地 印支运动 成藏 

分 类 号：TE122.3[石油与天然气工程—油气勘探]