鄂尔多斯盆地华庆地区侏罗系富县组油藏主控因素研究
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摘要
侏罗系是鄂尔多斯盆地石油勘探与开发的重要目的层。华庆地区富县组油藏是近年鄂尔多斯盆地侏罗系勘探取得重大突破的新区块和新层系,已展现出良好的勘探前景和资源潜力。本文利用印模法等方法精细刻画了华庆地区前侏罗纪古地貌特征,深入分析了侏罗系富县组油藏控制因素和富集规律。结果表明,华庆地区侏罗系富县组油藏主要来源于下部三叠系延长组优质烃源岩,油藏类型为构造油藏和岩性-构造油藏,发育在古地貌斜坡带背景之上的河道边滩沉积主砂带内。油藏富集主要受控于前侏罗纪古地貌特征,充足的油源供给、河道边滩相沉积、优越的输导条件、鼻隆构造及良好的泥岩封堵等是华庆地区富县组油藏富集的主要控制因素。
In the petroleum exploration and development of the Ordos Basin,the Jurassic strata are interpreted as the major target strata,in which the oil reservoirs from the Jurassic Fuxian Formation in the Huaqing region are delineated as more promising areas for petroleum exploration. The present paper gives a detailed description of the pre-Jurassic palaeogeomorphological features and the enrichment and controlling factors of the oil reservoirs from the Jurassic Fuxian Formation. The oil reservoirs in the Fuxian Formation are believed to be derived from the excellent source rocks in the underlying Triassic Yanchang Formation,and consist of the structural-and lithological-structural oil pools developed in the point bar deposits on the slope zones and controlled by the pre-Jurassic palaeogeomorphological features. The factors favourable for the enrichment of oil reservoirs include sufficient hydrocarbon supply,point bar deposits,migration conduits,nose structures and cap rocks.
In the petroleum exploration and development of the Ordos Basin,the Jurassic strata are interpreted as the major target strata,in which the oil reservoirs from the Jurassic Fuxian Formation in the Huaqing region are delineated as more promising areas for petroleum exploration. The present paper gives a detailed description of the pre-Jurassic palaeogeomorphological features and the enrichment and controlling factors of the oil reservoirs from the Jurassic Fuxian Formation. The oil reservoirs in the Fuxian Formation are believed to be derived from the excellent source rocks in the underlying Triassic Yanchang Formation,and consist of the structural-and lithological-structural oil pools developed in the point bar deposits on the slope zones and controlled by the pre-Jurassic palaeogeomorphological features. The factors favourable for the enrichment of oil reservoirs include sufficient hydrocarbon supply,point bar deposits,migration conduits,nose structures and cap rocks.
引文
[1]付金华,李士祥,刘显阳.鄂尔多斯盆地石油勘探地质理论与实践[J].天然气地球科学,2013,24(6):1091-1101.
[2]赵俊兴,陈洪德,时志强,等.占地貌恢复技术方法及其研究意义—以鄂尔多斯盆地侏罗系沉积前古地貌研究为例田[J].成都理工学院学报,2001,28(3):260-266.
[3]宋凯,吕剑文,凌升阶,等.鄂尔多斯盆地定边-吴旗地区前侏罗系古地貌与油藏[J].古地理学报,2003,5(4):497 507.
[4]郭正权,张立荣,楚关娟,等.鄂尔多斯盆地南部前侏罗纪占地貌对延安组下部油藏的控制作用[J].古地理学报,2008,10(1):63-71.
[5]黄第藩,王则民,石国世.陕甘宁地区印支期占地貌特征及其石油地质意义田[J].石油学报,1981,2(2):1-11.
[6]ZHAO Yande,YAO Jingli,SUN Bainian et al.The characteristics and geological significance of fluorescence for sandstone grains and hydrocarbon extracts from Triassic and Jurassic low permeability reservoirs in Tianhuan Depression of the Ordos Basin,China[J].Acta Geologica Sinica(English Edition),2014,88(6):1801-1814
[7]Zhao Yande,Sun Bainian,Duan Yi,et al.Characteristics and geological significance of fluorescence for sandstone grains and hydrocarbon extracts from low permeability reservoirs in the Ordos Basin,China[J].Arabian Journal of Geosciences,2015,8(12):10213-10223.
[8]赵彦德,黄锦绣,左静,等.鄂尔多斯盆地侏罗系延安组沉积特征及沉积相演化[A].第5届全国沉积学大会论文选集[C].北京:科学出版社,2013.
[9]时志强,韩水林,赵俊兴,等.鄂尔多斯盆地中南部侏罗系中延安期沉积体系及岩相古地理演化[J].地球学报,2003,24(1):49-54.
[10]赵俊兴,陈洪德,向芳.鄂尔多斯盆地中部延安地区中侏罗统延安组高分辨率层序地层研究[J].沉积学报,2003,21(2):307-312.
[11]赵俊兴,陈洪德,时志强,等.占地貌恢复技术方法及其研究意义—以鄂尔多斯盆地侏罗系沉积前古地貌研究为例田[J].成都理工学院学报,2001,28(3):260-266.
[12]赵彦德,罗安湘,孙柏年,等.鄂尔多斯盆地西南缘三叠系烃源岩评价及油源对比[J].兰州大学学报,2012,48(3):1-6.
[13]杨华,张文正.论鄂尔多斯盆地长7段优质油源岩在低渗透油气成藏富集中的主导作用:地质地球化学特征[J].地球化学,2005,34(2):147-154.
[14]张文正,杨华,杨奕华,等.鄂尔多斯盆地长7优质烃源岩的岩石学、元素地球化学特征及发育环境[J].地球化学,2008,37(1):59-64.
[15]张文正,杨华,李剑锋,等.论鄂尔多斯盆地长7段优质油源岩在低渗透油气成藏富集中的主导作用[J].石油勘探与开发,2006,33(3):289-293.
[16]赵彦德,刘显阳,张雪峰,等.鄂尔多斯盆地天环坳陷南段侏罗系原油油源分析[J].现代地质,2011,25(1):85-93.
[17]何金先,段毅,张晓丽,等.鄂尔多斯盆地华庆地区延长组长8烃源岩生烃潜力评价[J].兰州大学,2011,47(6):18-22
[18]赵文智,胡素云,汪泽成,等.鄂尔多斯盆地基底断裂在上三叠统延长组石油聚集中的控制作用[J].石油勘探与开发,2003,30(5):1-5
[19]刘显阳,邓秀芹,赵彦德,等.姬塬地区长9油层油气运移规律及模式探讨[J].岩性油气藏,2011,23(5):9-15.
[20]赵彦德,姚宜同,黄锦绣,等.应用含氮化合物分布研究鄂尔多斯盆地西南部延长组长3油藏原油运移与充注[J].现代地质,2014,28(4):832-840.
[21]李树同,张海峰,王多云,等.聚油古地貌成因类型及其有利成藏条件分析-以鄂尔多斯盆地上里塬地区前侏罗纪古地貌为例[J].沉积学报,2011,29(5):962-969.
[2]赵俊兴,陈洪德,时志强,等.占地貌恢复技术方法及其研究意义—以鄂尔多斯盆地侏罗系沉积前古地貌研究为例田[J].成都理工学院学报,2001,28(3):260-266.
[3]宋凯,吕剑文,凌升阶,等.鄂尔多斯盆地定边-吴旗地区前侏罗系古地貌与油藏[J].古地理学报,2003,5(4):497 507.
[4]郭正权,张立荣,楚关娟,等.鄂尔多斯盆地南部前侏罗纪占地貌对延安组下部油藏的控制作用[J].古地理学报,2008,10(1):63-71.
[5]黄第藩,王则民,石国世.陕甘宁地区印支期占地貌特征及其石油地质意义田[J].石油学报,1981,2(2):1-11.
[6]ZHAO Yande,YAO Jingli,SUN Bainian et al.The characteristics and geological significance of fluorescence for sandstone grains and hydrocarbon extracts from Triassic and Jurassic low permeability reservoirs in Tianhuan Depression of the Ordos Basin,China[J].Acta Geologica Sinica(English Edition),2014,88(6):1801-1814
[7]Zhao Yande,Sun Bainian,Duan Yi,et al.Characteristics and geological significance of fluorescence for sandstone grains and hydrocarbon extracts from low permeability reservoirs in the Ordos Basin,China[J].Arabian Journal of Geosciences,2015,8(12):10213-10223.
[8]赵彦德,黄锦绣,左静,等.鄂尔多斯盆地侏罗系延安组沉积特征及沉积相演化[A].第5届全国沉积学大会论文选集[C].北京:科学出版社,2013.
[9]时志强,韩水林,赵俊兴,等.鄂尔多斯盆地中南部侏罗系中延安期沉积体系及岩相古地理演化[J].地球学报,2003,24(1):49-54.
[10]赵俊兴,陈洪德,向芳.鄂尔多斯盆地中部延安地区中侏罗统延安组高分辨率层序地层研究[J].沉积学报,2003,21(2):307-312.
[11]赵俊兴,陈洪德,时志强,等.占地貌恢复技术方法及其研究意义—以鄂尔多斯盆地侏罗系沉积前古地貌研究为例田[J].成都理工学院学报,2001,28(3):260-266.
[12]赵彦德,罗安湘,孙柏年,等.鄂尔多斯盆地西南缘三叠系烃源岩评价及油源对比[J].兰州大学学报,2012,48(3):1-6.
[13]杨华,张文正.论鄂尔多斯盆地长7段优质油源岩在低渗透油气成藏富集中的主导作用:地质地球化学特征[J].地球化学,2005,34(2):147-154.
[14]张文正,杨华,杨奕华,等.鄂尔多斯盆地长7优质烃源岩的岩石学、元素地球化学特征及发育环境[J].地球化学,2008,37(1):59-64.
[15]张文正,杨华,李剑锋,等.论鄂尔多斯盆地长7段优质油源岩在低渗透油气成藏富集中的主导作用[J].石油勘探与开发,2006,33(3):289-293.
[16]赵彦德,刘显阳,张雪峰,等.鄂尔多斯盆地天环坳陷南段侏罗系原油油源分析[J].现代地质,2011,25(1):85-93.
[17]何金先,段毅,张晓丽,等.鄂尔多斯盆地华庆地区延长组长8烃源岩生烃潜力评价[J].兰州大学,2011,47(6):18-22
[18]赵文智,胡素云,汪泽成,等.鄂尔多斯盆地基底断裂在上三叠统延长组石油聚集中的控制作用[J].石油勘探与开发,2003,30(5):1-5
[19]刘显阳,邓秀芹,赵彦德,等.姬塬地区长9油层油气运移规律及模式探讨[J].岩性油气藏,2011,23(5):9-15.
[20]赵彦德,姚宜同,黄锦绣,等.应用含氮化合物分布研究鄂尔多斯盆地西南部延长组长3油藏原油运移与充注[J].现代地质,2014,28(4):832-840.
[21]李树同,张海峰,王多云,等.聚油古地貌成因类型及其有利成藏条件分析-以鄂尔多斯盆地上里塬地区前侏罗纪古地貌为例[J].沉积学报,2011,29(5):962-969.
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