中国近海潜在富烃凹陷评价方法与烃源岩识别
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摘要
除了已证实的富烃凹陷外,中国近海还有一批勘探程度较低、潜力未被证实的潜在富烃凹陷,因此加强潜在富烃凹陷评价,寻找新的富烃凹陷很有必要。提出了潜在富烃凹陷评价方法,其关键是定富凹(洼)—选富带—优选领域性突破目标,其中定富凹(洼)的核心是识别有效烃源岩。分别应用油源追踪法和地震相分析法进行了辽西凹陷、恩平凹陷和乌石凹陷等潜在富烃凹陷烃源岩识别(包括定性与定量),钻探结果已证实它们均为富烃凹陷,具有很好的油气勘探潜力。
There are still a number of unproved and potential hydrocarbon-rich sags with lower exploration maurity except some proved ones offshore China,and it is necessary to strengthen the evaluation of potential hydrocarbon-rich sags and look for new hydrocarbon-rich sags.An evaluation method of potential hydrocarbon-rich sags is presented here,in which the key is locating rich sags(or subsags)-selecting rich plays-optimizing regional breakthrough targets,and the core in locating rich sags(or subsags) is to identify the effective hydrocarbon source rocks.The approaches of oil source tracking and seismic facies analysis have been used to(qualitatively and quantitatively) identify the source rocks in Liaoxi,Enping and Wushi sags,and the drilling results have indicated that they are hydrocarbon-rich sags and have great exploration potential.
There are still a number of unproved and potential hydrocarbon-rich sags with lower exploration maurity except some proved ones offshore China,and it is necessary to strengthen the evaluation of potential hydrocarbon-rich sags and look for new hydrocarbon-rich sags.An evaluation method of potential hydrocarbon-rich sags is presented here,in which the key is locating rich sags(or subsags)-selecting rich plays-optimizing regional breakthrough targets,and the core in locating rich sags(or subsags) is to identify the effective hydrocarbon source rocks.The approaches of oil source tracking and seismic facies analysis have been used to(qualitatively and quantitatively) identify the source rocks in Liaoxi,Enping and Wushi sags,and the drilling results have indicated that they are hydrocarbon-rich sags and have great exploration potential.
引文
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[2]陈国童,王亮,牛成民,等.青东凹陷凹中隆控藏作用分析[J].中国海上油气,2010,22(2):77-82.
[3]刘廷海,王应斌,陈国童,等.辽东湾北区油气藏特征、主控因素与成藏模式[J].中国海上油气,2007,19(6):372-376.
[4]王伟元.中国海油“十五”科技成果简介[J].中国海上油气,2006,18(5):297-298.
[5]朱伟林,米立军,张厚和,等.中国海域含油气盆地图集[M].北京:石油工业出版社,2010.
[6]邓运华,徐长贵,李建平.渤海大油田形成条件探讨[J].中国工程科学,2011,13(5):10-15.
[7]张功成.源热共控论[J].石油学报,2012,33(5):723-738.
[8]张功成,朱伟林,米立军,等.“源热共控论”:来自南海海域油气田“外油内气”环带有序分布的新认识[J].沉积学报,2010,28(5):987-1005.
[9]张功成,陈国俊,张厚和,等.“源热共控”中国近海盆地油气田“内油外气”有序分布[J].沉积学报,2012,30(1):1-19.
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