琼东南盆地新近系坡折带特征及其对沉积体系的控制
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摘要
坡折带是层序划分样式的重要依据。大量地震剖面的精细解剖表明,琼东南盆地新近系的坡折带可以分为构造坡折带和沉积坡折带,构造坡折带进一步分为断裂坡折带和挠曲坡折带。不同的坡折带类型控制的储层沉积特征是不同的:构造坡折带的下倾方向一般发育一系列高成熟度、较高孔隙度的斜坡扇和盆底扇,是研究区较好的储集体;缓坡的沉积坡折带控制了斜坡扇裙和盆底扇的发育,陡坡的沉积坡折带控制了滑塌体的发育,沿陆坡向海方向形成了滑块、滑塌-泥石流、碎屑流-浊流的重力流演化序列。坡折带不但控制了储层的发育,而且控制形成有利的输导系统发育,坡折带及其控制的低位域砂体发育带是有利的勘探区带。
The slope-break is thought to be an important indicator to distinguish the patterns of sequences. Based on a comprehensive explanation of a large number of seismic sections in the Qiongdongnan basin,the neogene slope-break can be classified into two types:structural and sedimentary slope-break zones. The structural slope-break zones can be divided further into two patterns,the fracture slope break pattern and the flexure slope break pattern. Different patterns of slope-break are related with different reservoir sedimentary models. Structural slope-break zones,which are produced by the long-term activities of syndepositional faults,have always been an important factor in the depositional sequence development and the deposition process. Along the down dip direction of structural slope-break zones,a series of basin floor fan and slope fan are usually formed,which are characterized by high maturation and relatively high porosity. Gentle sedimentary slope-break controls the development of slope fan skirt and basin floor fan. Steep sedimentary slope-break controls the growth of slip block,to form the gravity flow evolutionary series from slider,slip-debris flow to debris flow-turbidity current along the slope in sea directions. Slope-break zones not only control the development of the reservoir,but also control the formation of the favorable conducting system,and the slope-break zones and low stand sand stones under their control are the favorable exploration zones.
The slope-break is thought to be an important indicator to distinguish the patterns of sequences. Based on a comprehensive explanation of a large number of seismic sections in the Qiongdongnan basin,the neogene slope-break can be classified into two types:structural and sedimentary slope-break zones. The structural slope-break zones can be divided further into two patterns,the fracture slope break pattern and the flexure slope break pattern. Different patterns of slope-break are related with different reservoir sedimentary models. Structural slope-break zones,which are produced by the long-term activities of syndepositional faults,have always been an important factor in the depositional sequence development and the deposition process. Along the down dip direction of structural slope-break zones,a series of basin floor fan and slope fan are usually formed,which are characterized by high maturation and relatively high porosity. Gentle sedimentary slope-break controls the development of slope fan skirt and basin floor fan. Steep sedimentary slope-break controls the growth of slip block,to form the gravity flow evolutionary series from slider,slip-debris flow to debris flow-turbidity current along the slope in sea directions. Slope-break zones not only control the development of the reservoir,but also control the formation of the favorable conducting system,and the slope-break zones and low stand sand stones under their control are the favorable exploration zones.
引文
[1]Vail P R,Audemard F,Bowman S A,et al.The stratigraphic signaturesto tectonics,eustasy and sedimentation:An overview[C]//Cycles and Events in Stratigraphy.BerlinHeidelberg:Springer-Verlag,1991:615-659.
[2]林畅松,潘元林,肖建新.“构造坡折带”——断陷盆地层序分析和油气预测的重要概念[J].地球科学-中国地质大学学报,2000,25(3):260-265.Lin Changsong,Pan Yuanlin,Xiao Jianxin.Earth Science-Journal of China University of Geosciences,2000,25(3):260-265.
[3]谢玉洪,王振峰,解习农,等.莺歌海盆地坡折带特征及其对沉积体系的控制[J].地球科学-中国地质大学学报,2004,29(5):569-574.Xie Yuhong,Wang Zhenfeng,Xie Xinong,et al.Earth Science-Journal of China University of Geosciences,2004,29(5):569-574.
[4]赵忠新,王华,陆永潮.断坡带对沉积体系的控制作用——以琼东南盆地为例[J].石油勘探与开发,2003,30(1):25-27.Zhao Zhongxin,Wang Hua,Lu Yongchao.Petroleum Exploration and Development,2003,30(1):25-27.
[5]冯有良,徐秀生.同沉积构造坡折带对岩性油气藏富集带的控制作用——以渤海湾盆地古近系为例[J].石油勘探与开发,2006,33(1):22-25.Feng Youliang,Xu Xiusheng.Petroleum Exploration and Development,2006,33(1):22-25.
[6]徐长贵.渤海古近系坡折带成因类型及其对沉积体系的控制作用[J].中国海上油气,2006,18(6):365-370.Xu Changgui.China Offshore Oil and Gas,2006,18(6):365-370.
[7]邱以钢,刘景彦.沾化凹陷渤南深层湖底扇高精度层序地层格架[J].地学前缘,2000,7(3):144.Qiu Yigang,Liu Jingyan.Earth Science Frontiers,2000,7(3):144.
[8]谯汉生,王明明.渤海湾盆地隐蔽油气藏[J].地学前缘,2000,7(4):497-506.Qiao Hansheng,Wang Mingming.Earth Science Frontiers,2000,7(4):497-506.
[9]林畅松,张燕梅,刘景彦,等.高精度层序地层学和储层预测[J].地学前缘,2000,7(3):111-117.Lin Changsong,Zhang Yanmei,Liu Jingyan,et al.Earth Science Frontiers,2000,7(3):111-117.
[10]樊太亮,吕延,丁明华.层序地层体制中的陆相储层发育规律[J].地学前缘,2000,7(4):315-321.Fan Tailiang,Lv Yan,Ding Minghua.Earth Science Frontiers,2000,7(4):315-321.
[11]龚再升,李思田,谢泰俊,等.南海北部大陆边缘盆地分布与油气聚集[M].北京:科学出版社,1997.Gong Zaisheng,Li Sitian,Xie Taijun,et al.The distribution of basin and the hydrocarbon accumulation of the continental margin in northernSouth China Sea[M].Beijing:Science Press,1997.
[12]魏魁生,崔旱云,叶淑芬,等.琼东南盆地高精度层序地层学研究[J].地球科学-中国地质大学学报,2000,25(3):260-265.Wei Kuisheng,Cui Hanyun,Ye Shufen,et al.Earth Science-Journal of China University of Geosciences,2001,26(1):59-66.
[13]龚再升,杨甲明,杨祖序,等.中国近海大油气田[M].北京:石油工业出版社,1997.Gong Zaisheng,Yang Jiaming,Yang Zuxu,et al.The large scale field of China offshore[M].Beijing:Petroleum Industry Press,1997.
[14]周小鹰,魏魁生.QDN盆地层序地层及生储盖组合分析[J].石油与天然气地质,2000,21(3):244-248.Zhou Xiaoying,Wei Kuisheng.Oil&Gas Geology,2000,21(3):244-248.
[15]肖军,王华,陆永潮,等.琼东南盆地构造坡折带特征及其对沉积的控制作用[J].海洋地质与第四纪地质,2003,23(3):55-62.Xiao Jun,Wang Hua,Lu Yongchao,et al.Marine Geology&Quaternary Geology,2003,23(3):55-62.
[16]Wagoner V J C,Mittchum R M,Campion K M,et al.Siliciclastic sequence stratigraphy in well logs,cores and outcrops[M].Tulsa:American Association of Petroleum Engineers,1990.
[17]Xie X N,Dietmar M R,Ren J Y,et al.Stratigraphic architecture and evolution of the continental slope system in offshore Hainan,northern South China Sea[J].Marine Geology,2008,247(3-4):129-144.
[2]林畅松,潘元林,肖建新.“构造坡折带”——断陷盆地层序分析和油气预测的重要概念[J].地球科学-中国地质大学学报,2000,25(3):260-265.Lin Changsong,Pan Yuanlin,Xiao Jianxin.Earth Science-Journal of China University of Geosciences,2000,25(3):260-265.
[3]谢玉洪,王振峰,解习农,等.莺歌海盆地坡折带特征及其对沉积体系的控制[J].地球科学-中国地质大学学报,2004,29(5):569-574.Xie Yuhong,Wang Zhenfeng,Xie Xinong,et al.Earth Science-Journal of China University of Geosciences,2004,29(5):569-574.
[4]赵忠新,王华,陆永潮.断坡带对沉积体系的控制作用——以琼东南盆地为例[J].石油勘探与开发,2003,30(1):25-27.Zhao Zhongxin,Wang Hua,Lu Yongchao.Petroleum Exploration and Development,2003,30(1):25-27.
[5]冯有良,徐秀生.同沉积构造坡折带对岩性油气藏富集带的控制作用——以渤海湾盆地古近系为例[J].石油勘探与开发,2006,33(1):22-25.Feng Youliang,Xu Xiusheng.Petroleum Exploration and Development,2006,33(1):22-25.
[6]徐长贵.渤海古近系坡折带成因类型及其对沉积体系的控制作用[J].中国海上油气,2006,18(6):365-370.Xu Changgui.China Offshore Oil and Gas,2006,18(6):365-370.
[7]邱以钢,刘景彦.沾化凹陷渤南深层湖底扇高精度层序地层格架[J].地学前缘,2000,7(3):144.Qiu Yigang,Liu Jingyan.Earth Science Frontiers,2000,7(3):144.
[8]谯汉生,王明明.渤海湾盆地隐蔽油气藏[J].地学前缘,2000,7(4):497-506.Qiao Hansheng,Wang Mingming.Earth Science Frontiers,2000,7(4):497-506.
[9]林畅松,张燕梅,刘景彦,等.高精度层序地层学和储层预测[J].地学前缘,2000,7(3):111-117.Lin Changsong,Zhang Yanmei,Liu Jingyan,et al.Earth Science Frontiers,2000,7(3):111-117.
[10]樊太亮,吕延,丁明华.层序地层体制中的陆相储层发育规律[J].地学前缘,2000,7(4):315-321.Fan Tailiang,Lv Yan,Ding Minghua.Earth Science Frontiers,2000,7(4):315-321.
[11]龚再升,李思田,谢泰俊,等.南海北部大陆边缘盆地分布与油气聚集[M].北京:科学出版社,1997.Gong Zaisheng,Li Sitian,Xie Taijun,et al.The distribution of basin and the hydrocarbon accumulation of the continental margin in northernSouth China Sea[M].Beijing:Science Press,1997.
[12]魏魁生,崔旱云,叶淑芬,等.琼东南盆地高精度层序地层学研究[J].地球科学-中国地质大学学报,2000,25(3):260-265.Wei Kuisheng,Cui Hanyun,Ye Shufen,et al.Earth Science-Journal of China University of Geosciences,2001,26(1):59-66.
[13]龚再升,杨甲明,杨祖序,等.中国近海大油气田[M].北京:石油工业出版社,1997.Gong Zaisheng,Yang Jiaming,Yang Zuxu,et al.The large scale field of China offshore[M].Beijing:Petroleum Industry Press,1997.
[14]周小鹰,魏魁生.QDN盆地层序地层及生储盖组合分析[J].石油与天然气地质,2000,21(3):244-248.Zhou Xiaoying,Wei Kuisheng.Oil&Gas Geology,2000,21(3):244-248.
[15]肖军,王华,陆永潮,等.琼东南盆地构造坡折带特征及其对沉积的控制作用[J].海洋地质与第四纪地质,2003,23(3):55-62.Xiao Jun,Wang Hua,Lu Yongchao,et al.Marine Geology&Quaternary Geology,2003,23(3):55-62.
[16]Wagoner V J C,Mittchum R M,Campion K M,et al.Siliciclastic sequence stratigraphy in well logs,cores and outcrops[M].Tulsa:American Association of Petroleum Engineers,1990.
[17]Xie X N,Dietmar M R,Ren J Y,et al.Stratigraphic architecture and evolution of the continental slope system in offshore Hainan,northern South China Sea[J].Marine Geology,2008,247(3-4):129-144.
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