陆相断陷盆地岩性油气藏形成与分布的“多元控油—主元成藏”特征  

CHARACTERISTICS OF “MULTI-FACTOR CONTROLLING AND KEYFACTOR ENTRAPPING” OF FORMATION AND DISTRIBUTION OF LITHOLOGIC PETROLEUM RESERVOIRS IN CONTINENTAL RIFT BASIN

作　　者：刘震[1] 赵阳[1] 杜金虎 肖伟[1] 金博[1] 许晓明[1] 梁全胜[1] 郝琦[1] 

机构地区：[1]石油大学石油天然气成藏机理教育部重点实验室,北京102249 [2]中国石油天然气有限公司勘探与生产分公司,北京100011

出　　处：《地质科学》2006年第4期612-635,共24页Chinese Journal of Geology(Scientia Geologica Sinica)

摘　　要：陆相断陷盆地岩性油气藏的形成和分布受到多种因素的控制(包括多项宏观地质因素和微观地质因素),很难用一个统一的模式来解释,表现出显著的“差异性”特征。岩性油气藏形成并分布在沉积盆地中,它必然首先要受盆地中宏观石油地质条件的影响,如:1)构造带类型的影响,2)沉积体系域类型的控制,3)储集相类型的控制,4)烃源岩的控制以及5)盆地温—压系统的控制等。根据岩性油气藏形成的基本条件和岩性圈闭成藏控制因素的分析,认为岩性圈闭能否成藏主要受4大主控因素制约:1)油气运移通道因素,2)流体动力因素,3)储层临界物性因素,和4)砂体封闭因素。本文力图用“多元控油—主元成藏”规律来概括这一特征,以期在石油地质理论和岩性油气藏勘探方面起到促进作用。The formation and accumulation of lithologic petroleum reservoir in continental rift basin might be influenced by several factors which showed remarkable differential properties, so it was too difficult to explain them using only one single model. The concerned affecting factors might be as follows： the structural belt, tract systems, reservoir phases, source rocks, temperature-pressure systems, as well as basement types of a basin. Based on comprehensive analyses of the relationships among the characters and conditions of lithologic petroleum reservoir＇s formation and controlling factors, the paper concluded that whether the lithologic trap could form reservoir or not, it was usually controlled by four major factors： the pass ways of hydrocarbon migration, dynamic conditions of hydrocarbon flow, physical properties of reservoir and the sealing conditions of sand body. The authors aimed to summarize the characteristics by reservoir character of ＂multi-factor controlling and key-factor entrapping＂, so as to play a pushing role both in the theory of petroleum geology and the exploration practice of lithologic petroleum reservoir.

关 键 词：岩性油气藏“多元控油-主元成藏” 形成与分布特征 陆相断陷盆地 

分 类 号：TE121.1[石油与天然气工程—油气勘探]