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济阳坳陷第三系隐蔽油气藏勘探理论与实践
张善文
摘 要:作为典型的陆相断陷盆地,济阳坳陷经受了复杂的构造活动和沉积作用,隐蔽油气藏十分发育.通过隐蔽油气藏形成机制的研究,提出了三个重要的理论认识:其一,断裂主导的盆地构造活动形成的陡坡和缓坡断阶、盆内和凸缘坡折控制了储集岩的形成与分布,成为隐蔽圈闭目标区带优选的基础,亦即"断坡控砂";其二,网毯式、"T"型、阶梯型、裂隙型等输导类型在盆地特定的时空域发育和产生作用,构成了复杂的油气输导网络体系,成为隐蔽油气藏勘探方向评价的条件,亦即"复式输导";其三,相(接受条件)、势(动力条件)存在的耦合关系,决定了油气成藏的基本条件和不同特点,成为勘探目标评价的关键,亦即"相势控藏".这三个观点构成了陆相断陷盆地隐蔽油气藏勘探思维的核心,有力地指导了"十五"期间济阳坳陷的隐蔽油气藏勘探.
关键词:断坡;隐蔽油气藏;油气勘探;陆相断陷盆地;济阳坳陷
分类号:TE112.322 文献标识码:A
文章编号:0253-9985(2006)06-0731-10
Exploration theory and practice of the Tertiary subtle reservoirs in Jiyang depression
Zhang Shanwen
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张善文(1955-),男,教授级高级工程师,石油地质勘探与管理
作者单位:张善文(中国石油化工股份有限公司胜利油田分公司,山东,东营,257000)
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