松辽盆地南部西区断裂体系与油气分布  

Fracture System and Petroleum Distribution in West District of Southern Songliao Basin

作　　者：王建功[1,2] 吴克平[3] 卫平生[4] 赵占银[5] 潘树新[4] 赵志魁[5] 

机构地区：[1]中国地质大学 [2]中国石油勘探开发研究院西北分院,兰州730020 [3]吉林省煤田地质勘察设计研究院 [4]中国石油勘探开发研究院西北分院 [5]中国石油吉林油田分公司

出　　处：《新疆石油地质》2005年第1期29-32,共4页Xinjiang Petroleum Geology

摘　　要：松辽盆地断裂体系的形成受控于盆地的演化过程,并影响各演化阶段的充填序列和油气分布。根据成因特征将松辽盆地南部西区断裂体系分为断陷期生长断裂体系、拗陷期伸展断裂体系和反转断裂体系,系统论述了断裂体系的成因机制、分布特征以及断裂体系在不同演化阶段的相似性和差异性,论述了断裂体系对油气分布的影响:断陷期生长断层控制着断陷盆地群的形成与发展,拗陷期伸展断裂体系控制着油气成藏序列和油气藏分布规律,反转断裂体系使油气再次发生运移,地层因拱张而产生裂缝,改善了储集条件,利于油气成藏。The formation of fracture system in Songliao basin controlled by its evolutionary pattern has influenced filling series and oil-gas distribution during each evolutional stage. According to its origin and features, the fracture system in west district of southern Songliao basin has been classified into growth-like system of faulted stage that controls the formation and development of faulted basin group, spread-like system of depressed stage that controls hydrocarbon accumulation series and distribution and reversed system that allows to remigration of hydrocarbon. The origin mechanism, distribution characteristic as well as the similarity and differentiation in different evolutional stages of the fracture system, etc. are systematically reviewed. All of these have improved the reservoir conditions or qualities and been favorable for hydrocarbon accumulation.

关 键 词：断裂体系 松辽盆地南部 演化阶段 油气分布 伸展 充填序列 储集条件 西区 油气成藏 断陷 

分 类 号：TE122.1[石油与天然气工程—油气勘探] P618[天文地球—矿床学]