东营凹陷新生代盆地结构特征及其控藏作用
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摘要
盆地结构的时空演化过程对油气的生成、运聚及成藏具有重要的控制作用。本文在大量地震及岩性资料基础上,分析了控盆断裂体系特征,讨论了东营凹陷新生代各构造阶段盆地结构的演化特征,并就东营凹陷不同结构单元的构造特征、油气成藏条件以及油气分布规律进行了对比。结果表明:受断裂体系发育与演化的控制,东营凹陷新生代以来的盆地结构发生了由"北东断西南超"至"北(西)断南(东)超"的转变;不同盆地结构单元的油气成藏条件及油气分布规律存在差异:陡坡带的油气富集与滚动背斜、断鼻构造及砂砾岩体的发育有关,缓坡带油气分布主要受控于大型鼻状构造背景,洼陷带的油气富集与浊积岩砂体有关,中央隆起带的长轴伸展方向是有利的油气成藏区。
The spatial-temporal evolution of the basin structures plays important roles in controlling the generation,migration and accumulation of hydrocarbon. Based on the analysis of the large amounts of seismic data and lithological materials,the features and evolution of the controlling fault systems in different tectonic stages were discussed.In addition,the structural characteristics,reservoir-forming conditions and distribution of different structural units were compared. The results showed that the basin structure of Dongying Sag changed in Cenozoic which was controlled by the development and evolution of the fault system. In the early phase,it exhibited northeast faulting,southwest overlapping feature. Later,it turned to a north faulting,south overlapping structure. Besides,reservoirforming conditions and distribution of different structural units also changed. Hydrocarbon accumulation of abrupt slope belt was related to the development of rolling anticline,fault nose and sandy conglomeratic body and that of gentle slope belt was mainly controlled by the development of large rolling anticline,while the hydrocarbon accumulation of sag belt was related to turbidity sand body. And the possible favorable reservoir forming area is along the long axle of the central anticline belt.
The spatial-temporal evolution of the basin structures plays important roles in controlling the generation,migration and accumulation of hydrocarbon. Based on the analysis of the large amounts of seismic data and lithological materials,the features and evolution of the controlling fault systems in different tectonic stages were discussed.In addition,the structural characteristics,reservoir-forming conditions and distribution of different structural units were compared. The results showed that the basin structure of Dongying Sag changed in Cenozoic which was controlled by the development and evolution of the fault system. In the early phase,it exhibited northeast faulting,southwest overlapping feature. Later,it turned to a north faulting,south overlapping structure. Besides,reservoirforming conditions and distribution of different structural units also changed. Hydrocarbon accumulation of abrupt slope belt was related to the development of rolling anticline,fault nose and sandy conglomeratic body and that of gentle slope belt was mainly controlled by the development of large rolling anticline,while the hydrocarbon accumulation of sag belt was related to turbidity sand body. And the possible favorable reservoir forming area is along the long axle of the central anticline belt.
引文
陈海云,于建国,舒良树,侯方英,吴龙丽.2005.济阳坳陷构造样式及其与油气关系.高校地质学报,11(4):622-632.
侯贵廷,钱祥麟,蔡东升.2000.渤海中、新生代盆地构造活动与沉积作用的时空关系.石油与天然气地质,21(3):201-206.
李素梅,庞雄奇,邱桂强,高永进,孙锡年.2004.东营凹陷北部陡坡带隐蔽油气藏的形成与分布.石油与天然气地质,25(4):416-421.
刘震,张善文,赵阳,高先志.2003.东营凹陷南斜坡输导体系发育特征.石油勘探与开发,3(3):84-86.
马丽娟,郑和荣,解习农.2005.东营凹陷中央隆起带断裂构造及油气运移.石油与天然气地质,26(2):246-251.
孟玮,钟建华,李勇,禚元杰.2009.东营凹陷北部陡坡带砂砾岩体分布规律.特种油气藏,16(5):17-19.
邱桂强,王勇,熊伟,崔营滨,丁桔红,尹丽娟.2011.济阳坳陷新生代盆地结构差异性研究.油气地质与采收率,18(6):1-5.
任建业,张青林.2004.东营凹陷中央背斜隆起带形成机制分析.大地构造与成矿学,28(3):254-262.
盛文波,操应长,刘晖,张宇.2008.东营凹陷古近纪控盆断层演化特征及盆地结构类型.石油与天然气地质,29(3):290-296.
宋明水.2005.东营凹陷南斜坡沙四段沉积环境的地球化学特征.矿物岩石,25(1):67-73.
隋风贵,操应长,刘惠民,王艳忠.2010.东营凹陷北带东部古近系近岸水下扇储集物性演化及其油气成藏模式.地质学报,84(2):246-255.
王金铎,韩文功,于建国,郑建斌.2003.东营凹陷沙三段浊积岩体系及其油气勘探意义.石油学报,24(6):24-29.
肖焕钦,孙锡年,汤冬梅,田美荣.2009.济阳坳陷拗陷期构造带划分及其石油地质意义.石油地质,(1):30-34.
熊伟.2006.断陷盆地输导体系宏观格架及构成特征.石油勘探与开发,33(4):474-478.
于兴河,姜辉,李胜利,陈永峤.2007.中国东部中、新生代陆相断陷盆地沉积充填模式及其控制因素——以济阳坳陷东营凹陷为例.岩性油气藏,19(1):39-45.
张林,吴智平,李伟,吴晓光,贾海波.2012.济阳坳陷伸展背景下的变换构造研究.大地构造与成矿学,36(1):24-31.
张升平,吕宝凤,夏斌,刘冠德.2007.东营凹陷新生代构造转型及其控油意义.大地构造与成矿学,31(3):281-287.
钟延秋,李勇,郭洪金,钟建华.2006.济阳坳陷古近系同沉积背斜构造及其与油气的关系.大地构造与成矿学,30(1):28-40.
邹灵.2008.东营凹陷南部缓坡带沙四段滩坝砂储层分布及成藏主控因素.油气地质与采收率,15(2):34-36.
Bai Guoping and Zhang Shanwen.2004.Depositional patterns and oil/gas accumulation features of Sha-3 Member Turbidites in Dongying Depression,Bohai Bay Basin.Petroleum Science,1(2):105-110.
侯贵廷,钱祥麟,蔡东升.2000.渤海中、新生代盆地构造活动与沉积作用的时空关系.石油与天然气地质,21(3):201-206.
李素梅,庞雄奇,邱桂强,高永进,孙锡年.2004.东营凹陷北部陡坡带隐蔽油气藏的形成与分布.石油与天然气地质,25(4):416-421.
刘震,张善文,赵阳,高先志.2003.东营凹陷南斜坡输导体系发育特征.石油勘探与开发,3(3):84-86.
马丽娟,郑和荣,解习农.2005.东营凹陷中央隆起带断裂构造及油气运移.石油与天然气地质,26(2):246-251.
孟玮,钟建华,李勇,禚元杰.2009.东营凹陷北部陡坡带砂砾岩体分布规律.特种油气藏,16(5):17-19.
邱桂强,王勇,熊伟,崔营滨,丁桔红,尹丽娟.2011.济阳坳陷新生代盆地结构差异性研究.油气地质与采收率,18(6):1-5.
任建业,张青林.2004.东营凹陷中央背斜隆起带形成机制分析.大地构造与成矿学,28(3):254-262.
盛文波,操应长,刘晖,张宇.2008.东营凹陷古近纪控盆断层演化特征及盆地结构类型.石油与天然气地质,29(3):290-296.
宋明水.2005.东营凹陷南斜坡沙四段沉积环境的地球化学特征.矿物岩石,25(1):67-73.
隋风贵,操应长,刘惠民,王艳忠.2010.东营凹陷北带东部古近系近岸水下扇储集物性演化及其油气成藏模式.地质学报,84(2):246-255.
王金铎,韩文功,于建国,郑建斌.2003.东营凹陷沙三段浊积岩体系及其油气勘探意义.石油学报,24(6):24-29.
肖焕钦,孙锡年,汤冬梅,田美荣.2009.济阳坳陷拗陷期构造带划分及其石油地质意义.石油地质,(1):30-34.
熊伟.2006.断陷盆地输导体系宏观格架及构成特征.石油勘探与开发,33(4):474-478.
于兴河,姜辉,李胜利,陈永峤.2007.中国东部中、新生代陆相断陷盆地沉积充填模式及其控制因素——以济阳坳陷东营凹陷为例.岩性油气藏,19(1):39-45.
张林,吴智平,李伟,吴晓光,贾海波.2012.济阳坳陷伸展背景下的变换构造研究.大地构造与成矿学,36(1):24-31.
张升平,吕宝凤,夏斌,刘冠德.2007.东营凹陷新生代构造转型及其控油意义.大地构造与成矿学,31(3):281-287.
钟延秋,李勇,郭洪金,钟建华.2006.济阳坳陷古近系同沉积背斜构造及其与油气的关系.大地构造与成矿学,30(1):28-40.
邹灵.2008.东营凹陷南部缓坡带沙四段滩坝砂储层分布及成藏主控因素.油气地质与采收率,15(2):34-36.
Bai Guoping and Zhang Shanwen.2004.Depositional patterns and oil/gas accumulation features of Sha-3 Member Turbidites in Dongying Depression,Bohai Bay Basin.Petroleum Science,1(2):105-110.
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