PETROLEUM SYSTEMS IN THE HONGZE SAG, THE NORTH JIANGSU BASIN
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摘要: 洪泽凹陷是位于苏北盆地最西部的一个中小型断陷,可划分为管镇、顺河、苏巷和嘉南等4个含油气系统,其中前两者的油气成藏条件相对较好但差异较大,又可分别划分为南北2个成藏体系。在成藏体系中,大规模的油气运移与构造圈闭的形成基本同步,三垛运动是控制油气成藏与分布的关键时期。构造沉降和热演化是影响含油气丰度的主控因素,烃源岩成熟时间晚、程度低,具有低熟、低充注的成藏特点。管南和顺南成藏体系中的深断带、管北和顺北成藏体系中的深斜带油气成藏条件相对最好,管北和顺北成藏体系中的其他区带成藏条件较差,仅在靠近烃源岩的部位(枢纽带)较好。Abstract: The Hongze Sag is a middle-small rift located in the west end of North Jiangsu Basin.It can be divided into 4 petroleum systems as the Shunhe,Guanzhen,Suxiang and Jia'nan,among which the Shunhe and Guanzhen petroleum systems are favorable but distinguished.Further more,the petroleum systems of Shunhe and Guanzhen can be divided respectively into 2 accumulation systems as the northern and the southern ones.Within the accumulation system,migration takes place almost the same time as trap formation.The Sanduo Movement is the key period to control petroleum accumulation and distribution while tectonic subsidence and geothermal history are the key factors to affect abundance.Insufficient reservoirs are formed due to the later time and lower maturation of organic matters.The best plays for oil accumulation are the deep-fault belts in the Southern Guanzhen and Southern Shunhe accumulation systems,and the deep monocline belts in the Northern Guanzhen and Northern Shunhe accumulation systems.Other belts in the Northern Guanzhen and Northern Shunhe accumulation systems can also be favorable,especially the belts near source rocks.
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[1] 朱建辉,江兴歌,徐旭辉等.苏北盆地海安凹陷曲塘-李堡地区新生代演化和油气响应评价[J].石油实验地质,2005,27(2):138～143 [2] 刘彬,周小进,王果寿等.盆地演化阶段性与油气富集——以东部下第三系盆地为例[J].石油实验地质,2005,27(4):346～352 [3] 李贤庆,包建平,王文军.苏北盆地下第三系烃源岩热演化研究[J].石油实验地质,1996,18(1):96～100 [4] 侯读杰,王铁冠、李贤庆等.洪泽凹陷低熟原油的饱和烃化合物组合[J].沉积学报,1996,14(4):38～44 [5] 陈安定.苏北下第三系源岩"浅"熟的构造背景[J].石油勘探与开发,1996,23(4):6～10 [6] 邹华耀,陆建峰.断层——低熟油烃源岩排油的控制因素[J].江汉石油学院学报,1998,20(2):33～37 [7] 胡朝元,廖曦.成油系统概念在中国的提出及其应用[J].石油学报,1996,17(1):10～16 [8] 吴元燕,吕修祥.利用含油气系统认识油气分布[J].石油学报,1995,16(4):17～22 [9] 费琪."成油体系"分析[J].地学前缘,1995,2(3～4):163～170 [10] 赵文智,何登发,池英柳等.中国复合含油气系统的基本特征与勘探技术[J].石油学报,2001,22(1):6～13 [11] 金之钧,张一伟.油气成藏机理与分布规律[M].北京:石油工业出版社,2003 [12] 李思田,潘元林.断陷湖盆隐蔽油藏预测及勘探的关键技术——高精度地震探测基础上的层序地层学研究[J].地球科学,2002,27(5):592～598 [13] 林畅松,潘元林,肖建新等.构造坡折带断陷湖盆层序和油气预测的重要概念[J].地球科学,2000,25(3):260～267 [14] 周荔青.苏北盆地阜三段油气成藏规律[J].石油实验地质,2004,26(2):187～193 [15] 傅学斌,王旭东,刘淑华等.洪泽凹陷管镇次凹油气成藏基本规律初探[J].河南石油,2004,18(5):4～6 [16] 侯建国,任丽华,董春梅等.有机包裹体技术在油气运移与聚集中的应用研究[J].石油实验地质,2005,27(4):409～413 -
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