东海陆架盆地西部坳陷带中生界储层类型及成因
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摘要
利用现有钻井、测井、地震等多种实际资料,分析了东海陆架盆地西部坳陷带中生界的地层和沉积特征,对比了陆域邻区储层类型,在此基础上探讨了研究区中生界的储层类型及其形成的原因,以期为进一步油气地质条件的综合分析及勘探方向的优选提供依据。分析认为,东海陆架盆地西部坳陷带中生界储层类型多,主要包括砂岩储层、风化壳储层和火山岩储层,其中以砂岩储层为主;中生界储层储集条件好,白垩系总体上优于侏罗系,但非均质性非常强。砂岩储层的发育受控于沉积环境,主要分布在河流、扇三角洲、滨岸等相带;风化壳储层、火山碎屑岩储层受构造运动的影响,构造高部位凸起区是其重要的潜在发育区。
Using the existing drilling,logging,and seismic data,this paper analyzed the stratigraphic and sedimentary characteristics of the Mesozoic depression belt of the Western Depression in the East China Sea Shelf Basin and made a comparison of reservoir types to the adjacent land area.On the basis,the types and origins of the Mesozoic reservoirs are discussed in order to provide the basis for comprehensive analysis of gas geological conditions and preferred direction for further exploration.The types of Mesozoic reservoirs found in the study area include sandstone reservoir,weathering-crust reservoir and volcanic rock reservoir.Among them,sandstone reservoir dominates.Cretaceous reservoirs are much better than the Jurassic.However,the sandstone reservoirs are strongly heterogeneous.The development of sandstone reservoirs depends upon its sedimentary environment.Fluvial,fan deltaic,and coastal environments are the main domains for sandstone reservoir to form.Weathering-crust reservoir and Volcano clastic rock reservoir are influenced by tectonic movement and structural highs are the favorable places for them to form.
Using the existing drilling,logging,and seismic data,this paper analyzed the stratigraphic and sedimentary characteristics of the Mesozoic depression belt of the Western Depression in the East China Sea Shelf Basin and made a comparison of reservoir types to the adjacent land area.On the basis,the types and origins of the Mesozoic reservoirs are discussed in order to provide the basis for comprehensive analysis of gas geological conditions and preferred direction for further exploration.The types of Mesozoic reservoirs found in the study area include sandstone reservoir,weathering-crust reservoir and volcanic rock reservoir.Among them,sandstone reservoir dominates.Cretaceous reservoirs are much better than the Jurassic.However,the sandstone reservoirs are strongly heterogeneous.The development of sandstone reservoirs depends upon its sedimentary environment.Fluvial,fan deltaic,and coastal environments are the main domains for sandstone reservoir to form.Weathering-crust reservoir and Volcano clastic rock reservoir are influenced by tectonic movement and structural highs are the favorable places for them to form.
引文
[1]杨艳秋,李刚,戴春山.东海陆架盆地西部坳陷带中生界分布特征及其有利区探讨[J].世界地质,2011,30(3):396-403.[YANG Yanqiu,LI Gang,DAI Chunshan.Characteristics of Mesozoic distribution and discussion in its favorable area in western depression zone of East China Sea Shelf Basin[J].Global Geology,2011,30(3):396-403.]
[2]龚建明,李刚,杨传胜,等.东海陆架盆地南部中生界分布特征与油气勘探前景[J].吉林大学学报:地球科学版,2013,43(1):20-27.[GONG Jianming,LI Gang,YANG Chuansheng,et al.Hydrocarbon prospecting of Mesozoic strata in Southern East China Sea Shelf Basin[J].Journal of Jilin University(Earth Science Edition),2013,43(1):20-27.]
[3]高乐.东海陆架中生代残余盆地特征及勘探方向探讨[J].中国海上油气,2005,17(3):148-152.[GAO Le.Mesozoic remnant basin characteristics and hydrocarbon exploration direction on East China Sea Shelf[J].China Offshore Oil and Gas,2005,17(3):148-152.]
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[6]刘建华,吴健生,方银霞,等.东海陆架盆地的前新生界[J].海洋学报,2007,29(1):66-75.[LIU Jianhua,WU Jiansheng,FANG Yinxia,et al.Pre-Cenozoic groups in the shelf basin of the East China Sea[J].Acta Oceanologica Sinica,2007,29(1):66-75.]
[7]冯晓杰,张川燕,王春修,等.东海陆架和台西南盆地中生界及其油气勘探潜力[J].中国海上油气(地质),2001,15(5):306-310.[FENG Xiaojie,ZHANG Chuanyan,WANG Chunxiu,et a1.Mesozoic in the East China Sea Shelf and Taixinan Basin and its petroleum potential[J].China Offshore Oil and Gas(Geology),2001,15(5):306-310.]
[8]须雪豪,陈琳琳,汪企浩.东海陆架盆地中生界地质特征与油气资源潜力浅析[J].海洋石油,2004,24(3):1-7.[XU Xuehao,CHEN Linlin,WANG Qihao.Analysis of Mesozoic geological characteristics and resource potential in the East China Sea Shelf Basin[J].Offshore Oil,2004,24(3):1-7.]
[9]蒋玉波,龚建明,曹志敏,等.东海陆架盆地南部及邻区陆域中生界对比[J].海洋地质前沿,2013,29(10):1-7.[JIANG Yubo,GONG Jianming,CAO Zhimin,et al.Correlation of the Mesozoic between southern East China Shelf Basin and its adjacent areas[J].Marine Geology Frontiers,2013,29(10):1-7.]
[10]刘建华,黎明碧,方银霞.东海陆架盆地海相中生界及其与邻近古海洋关系探讨[J].热带海洋学报,2005,24(2):1-7.[LIU Jianhua,LI Mingbi,FANG Yinxia.Mesozoic strata in East China Sea Shelf Basin and their relationship with adjacent palaeo-seas[J].Journal of Tropical Oceanography,2005,24(2):1-7.]
[11]杨长清,杨传胜,李刚,等.东海陆架盆地南部中生代构造演化与原型盆地性质[J].海洋地质与第四纪地质,2012,32(3):105-111.[YANG Changqing,YANG Chuansheng,LI Gang,et a1.Mesozoic tectonic evolution and prototype basin characters in the Southern East China Sea Shelf basin[J].Marine Geology and Quaternary Geology,2012,32(3):105-111.]
[12]郑求根,周祖翼,蔡立国,等.东海陆架盆地中新生代构造背景及演化[J].石油与天然气地质,2005,26(2):197-201.[ZHENG Qiugen,ZHOU Zuyi,CAI Liguo,et al.Meso-Cenozoic tectonic setting and evolution of East China Sea Shelf Basin[J].Oil and Gas Geology,2005,26(2):197-201.]
[13]冯晓杰,蔡东升,王春修,等.东海陆架盆地中新生代构造演化特征[J].中国海上油气,2003,17(1):33-37.[FENG Xiaojie,CAI Dongsheng,WANG Chunxiu,et al.The MesoCenozoic tectonic evolution in the East China Sea continental shelf basin[J].China Offshore Oil and Gas(Geology),2003,17(1):33-37.]
[14]李思田,路凤香,林畅松,等.中国东部及邻区中、新生代盆地演化及地球动力学背景[M].武汉:中国地质大学出版社,1997.[LI Sitian,LU Fengxiang,LIN Changsong,et al.Evolution of Mesozoic and Cenozoic basin in eastern China and their geodynamic background[M].China University of Geoscience Press,1997.]
[15]张锦伟,赵汗青,傅志飞.东海陆架盆地南部构造演化及对油气的控制作用[J].海洋石油,2011,31(2):8-12.[ZHANG Jinwei,ZHAO Hanqing,FU Zhifei.Tectonic evolution of the southern East China Sea shelf basin and its control on hydrocarbon accumulation[J].Offshore Oil,2011,31(2):8-12.]
[16]王可德,王建平,徐国庆,等.东海陆架盆地西南部中生代地层的发现[J].地层学杂志,2000,24(2):129-131.[WANG Kede,WANG Jianping,XU Guoqing,et al.The discovery and division of Mesozoic strata in the southwest of Donghai shelf basin[J].Journal of Stratigraphy,2000,24(2):129-131.]
(1)全国油气资源战略选区调查与评价国家专项(第二批)(编号:2009GYXQ5)2011年度成果报告。
[2]龚建明,李刚,杨传胜,等.东海陆架盆地南部中生界分布特征与油气勘探前景[J].吉林大学学报:地球科学版,2013,43(1):20-27.[GONG Jianming,LI Gang,YANG Chuansheng,et al.Hydrocarbon prospecting of Mesozoic strata in Southern East China Sea Shelf Basin[J].Journal of Jilin University(Earth Science Edition),2013,43(1):20-27.]
[3]高乐.东海陆架中生代残余盆地特征及勘探方向探讨[J].中国海上油气,2005,17(3):148-152.[GAO Le.Mesozoic remnant basin characteristics and hydrocarbon exploration direction on East China Sea Shelf[J].China Offshore Oil and Gas,2005,17(3):148-152.]
[4]梁若冰.东海陆架盆地南部中生界分布浅析[J].海洋石油,2012,32(3):18-22.[LIANG Ruobing.The distribution of Mesozoic in the southern part of East China Sea Shelf Basin[J].Offshore Oil,2012,32(3):18-22.]
[5]陈建文,李刚,陈国威.东海陆架盆地西部坳陷带的中生界和古新统油气远景[J].海洋地质动态,2003,19(8):17-19.[CHEN Jianwen,LI Gang,CHEN Guowei.Petroleum prospects of Mesozoic and Paleocene in the western depression of the East China Sea Shelf Basin[J].Marine Geology Letters,2003,19(8):17-19.]
[6]刘建华,吴健生,方银霞,等.东海陆架盆地的前新生界[J].海洋学报,2007,29(1):66-75.[LIU Jianhua,WU Jiansheng,FANG Yinxia,et al.Pre-Cenozoic groups in the shelf basin of the East China Sea[J].Acta Oceanologica Sinica,2007,29(1):66-75.]
[7]冯晓杰,张川燕,王春修,等.东海陆架和台西南盆地中生界及其油气勘探潜力[J].中国海上油气(地质),2001,15(5):306-310.[FENG Xiaojie,ZHANG Chuanyan,WANG Chunxiu,et a1.Mesozoic in the East China Sea Shelf and Taixinan Basin and its petroleum potential[J].China Offshore Oil and Gas(Geology),2001,15(5):306-310.]
[8]须雪豪,陈琳琳,汪企浩.东海陆架盆地中生界地质特征与油气资源潜力浅析[J].海洋石油,2004,24(3):1-7.[XU Xuehao,CHEN Linlin,WANG Qihao.Analysis of Mesozoic geological characteristics and resource potential in the East China Sea Shelf Basin[J].Offshore Oil,2004,24(3):1-7.]
[9]蒋玉波,龚建明,曹志敏,等.东海陆架盆地南部及邻区陆域中生界对比[J].海洋地质前沿,2013,29(10):1-7.[JIANG Yubo,GONG Jianming,CAO Zhimin,et al.Correlation of the Mesozoic between southern East China Shelf Basin and its adjacent areas[J].Marine Geology Frontiers,2013,29(10):1-7.]
[10]刘建华,黎明碧,方银霞.东海陆架盆地海相中生界及其与邻近古海洋关系探讨[J].热带海洋学报,2005,24(2):1-7.[LIU Jianhua,LI Mingbi,FANG Yinxia.Mesozoic strata in East China Sea Shelf Basin and their relationship with adjacent palaeo-seas[J].Journal of Tropical Oceanography,2005,24(2):1-7.]
[11]杨长清,杨传胜,李刚,等.东海陆架盆地南部中生代构造演化与原型盆地性质[J].海洋地质与第四纪地质,2012,32(3):105-111.[YANG Changqing,YANG Chuansheng,LI Gang,et a1.Mesozoic tectonic evolution and prototype basin characters in the Southern East China Sea Shelf basin[J].Marine Geology and Quaternary Geology,2012,32(3):105-111.]
[12]郑求根,周祖翼,蔡立国,等.东海陆架盆地中新生代构造背景及演化[J].石油与天然气地质,2005,26(2):197-201.[ZHENG Qiugen,ZHOU Zuyi,CAI Liguo,et al.Meso-Cenozoic tectonic setting and evolution of East China Sea Shelf Basin[J].Oil and Gas Geology,2005,26(2):197-201.]
[13]冯晓杰,蔡东升,王春修,等.东海陆架盆地中新生代构造演化特征[J].中国海上油气,2003,17(1):33-37.[FENG Xiaojie,CAI Dongsheng,WANG Chunxiu,et al.The MesoCenozoic tectonic evolution in the East China Sea continental shelf basin[J].China Offshore Oil and Gas(Geology),2003,17(1):33-37.]
[14]李思田,路凤香,林畅松,等.中国东部及邻区中、新生代盆地演化及地球动力学背景[M].武汉:中国地质大学出版社,1997.[LI Sitian,LU Fengxiang,LIN Changsong,et al.Evolution of Mesozoic and Cenozoic basin in eastern China and their geodynamic background[M].China University of Geoscience Press,1997.]
[15]张锦伟,赵汗青,傅志飞.东海陆架盆地南部构造演化及对油气的控制作用[J].海洋石油,2011,31(2):8-12.[ZHANG Jinwei,ZHAO Hanqing,FU Zhifei.Tectonic evolution of the southern East China Sea shelf basin and its control on hydrocarbon accumulation[J].Offshore Oil,2011,31(2):8-12.]
[16]王可德,王建平,徐国庆,等.东海陆架盆地西南部中生代地层的发现[J].地层学杂志,2000,24(2):129-131.[WANG Kede,WANG Jianping,XU Guoqing,et al.The discovery and division of Mesozoic strata in the southwest of Donghai shelf basin[J].Journal of Stratigraphy,2000,24(2):129-131.]
(1)全国油气资源战略选区调查与评价国家专项(第二批)(编号:2009GYXQ5)2011年度成果报告。