文昌B凹陷脉动式构造演化及其与油气成藏关系
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摘要
珠江口盆地西部文昌B凹陷构造复杂多样,应力场多变。新三维地震及探井等资料的日渐丰富,为研究该凹陷的构造及演化特征奠定了基础。文中运用板块构造理论和构造解析方法研究认为,文昌B凹陷具有伸展—反转—再伸展—再反转的脉动式演化特征。这种脉动式构造演化,不仅控制了文昌B凹陷烃源岩、储盖层的发育,而且导致珠海组二段和珠江组二段不同性质的圈闭在纵向上叠加,有利于形成复式油气藏聚集带。因此,对于文昌B凹陷的勘探,应结合构造演化特点,既要注重特定演化阶段圈闭的特殊性,也要分析不同演化阶段叠合造成的复式成藏效应,进行多层系勘探,从而提高勘探成功率。
The structure is complex and the tectonic stress field is diverse during different geologic epochs in Wenchang B Depression,western the Pearl River Mouth Basin.The study of structure characteristics and evaluation is imperative as the new 3D seismic data are acquired and the new well data are accumulated.Based on the plate tectonics theory and adopting the structural interpretation method,this paper considers that Wenchang B Depression has the characteristics of pulsating tectonic evolution with extension structure and inverse structure.This pulsating tectonic evolution not only controls the development of oil source rock and reservoir and cap beds,but also leads to the distinct trap overlap for the second intervals of Zhuhai Formation and Zhujiang Formation in column order,which is in favour of forming the hydrocarbon accumulation zones of compound reservoirs.The oil exploration should combine the structure evolution characteristics,attend the uniquely trap in the special evolution period and analyze the complicated structure overlay in different evolution periods.Multi-layer traps should be placed stress on in order to improve the exploration success rate.
The structure is complex and the tectonic stress field is diverse during different geologic epochs in Wenchang B Depression,western the Pearl River Mouth Basin.The study of structure characteristics and evaluation is imperative as the new 3D seismic data are acquired and the new well data are accumulated.Based on the plate tectonics theory and adopting the structural interpretation method,this paper considers that Wenchang B Depression has the characteristics of pulsating tectonic evolution with extension structure and inverse structure.This pulsating tectonic evolution not only controls the development of oil source rock and reservoir and cap beds,but also leads to the distinct trap overlap for the second intervals of Zhuhai Formation and Zhujiang Formation in column order,which is in favour of forming the hydrocarbon accumulation zones of compound reservoirs.The oil exploration should combine the structure evolution characteristics,attend the uniquely trap in the special evolution period and analyze the complicated structure overlay in different evolution periods.Multi-layer traps should be placed stress on in order to improve the exploration success rate.
引文
[1]龚再升,李思田,谢泰俊.南海北部大陆边缘盆地分析与油气聚集[M].北京:科学出版社,1997:1-507.
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[12]姜华,王华,李俊良,等.珠江口盆地珠三坳陷油气成藏模式与分布规律[J].石油与天然气地质,2009,30(3):275-281,286.
[13]蔡周荣,刘维亮,万志峰,等.南海北部新生代构造厘定及与油气成藏关系探讨[J].海洋通报,2010,29(2):161-165.
[14]张功成.南海北部陆坡深水区构造演化及其特征[J].石油学报,2010,31(4):528-533.
[15]龚铭,李唐根,伍泓.南沙海域构造演化与油气资源前景[J].天然气工业,2004,24(3):32-35.
[16]吕学菊,肖力,林正良,等.珠江口盆地西部珠三坳陷沉降史分析[J].新疆石油地质,2008,29(2):195-197.
[17]夏斌,崔学军,张宴华,等.南海扩张的动力学因素及其数值模拟讨论[J].大地构造与成矿学,2005,29(3):328-333.
[18]Ben Avraham Z,Uyeda S.The evolution of the China Basin and theMesozoic paleography of Borneo[J].Earth Planet.Sci.Lett.,1973,18(2):365-376.
[19]Tapponnier P,Peltzer G,Armijo R.On the mechanics of the collisionbetween India and Asia[J].Geological Society of London SpecialPublication 19,1986:115-157.
[20]Taylor B,Hayes D E.The tectonic evolution of the South China SeaBasin[M]//Hayes D E.The tectonic and geologic evolution of SoutheastAsia Seas and Islands:AGU Geophysical Monograph 27.Washington:AGU,1980:89-104.
[21]郭峰,蔡周荣,万志峰,等.徐家围子断陷深层挤压构造样式及成因分析[J].断块油气田,2010,17(6):714-717.
[22]王春修,张群英.珠三坳陷典型油气藏及成藏条件分析[J].中国海上油气,1999,13(4):248-253.
[23]于开平,张功成,梁建设,等.珠江口盆地恩平凹陷油气成藏条件研究[J].石油实验地质,2011,33(5):509-512.
[24]赵红兵,严科.近岸水下扇砂砾岩沉积特征及扇体分布规律[J].断块油气田,2011,18(4):438-441.
[25]付广,王立志.源断裂在断陷盆地油运聚成藏中的作用研究[J].断块油气田,2011,18(6):686-690.
[26]高渐珍,薛国刚,慕小水,等.东濮凹陷复杂断块群成藏主控因素及成藏模式[J].断块油气田,2011,18(6):691-695.
[2]杨克绳.中国东部主要盆地断坳结构形成机理的探讨[J].断块油气田,1999,6(1):1-8.
[3]张迎朝,陈志宏,李绪深,等.珠江口盆地文昌B凹陷及周边油气成藏特征与有利勘探领域[J].石油实验地质,2011,33(3):297-302.
[4]王洪江.高邮凹陷复杂断块油气藏油气运聚机理研究[J].断块油气田,2011,18(2):199-202.
[5]王亮,杜晓峰,张海霞,等.渤海南部海域青东凹陷油气成藏主控因素分析[J].石油地质与工程,2009,23(5):18-22,24.
[6]王永利,武强,王应斌.莱州湾凹陷西走滑带构造演化特征及对油气成藏的影响[J].石油地质与工程,2010,24(2):5-7.
[7]袁亚娟,夏斌,吕宝凤.柴达木盆地断裂组合特征及油气成藏意义[J].断块油气田,2011,18(2):212-216.
[8]任孟坤,张明功,高广亮.东濮凹陷西部斜坡带构造样式与油气聚集[J].断块油气田,2010,17(3):300-303.
[9]牟春.大民屯凹陷基岩油气成藏特征研究[J].石油地质与工程,2011,25(3):4-7.
[10]白振华,孙培元,孙宝才.准噶尔盆地乌夏断裂带构造特征及其油气成藏意义[J].石油地质与工程,2011,25(3):19-22.
[11]聂逢君,姜美珠,李思田.南海珠江口盆地珠三坳陷油气输导系统研究[J].石油实验地质,2011,33(4):392-401.
[12]姜华,王华,李俊良,等.珠江口盆地珠三坳陷油气成藏模式与分布规律[J].石油与天然气地质,2009,30(3):275-281,286.
[13]蔡周荣,刘维亮,万志峰,等.南海北部新生代构造厘定及与油气成藏关系探讨[J].海洋通报,2010,29(2):161-165.
[14]张功成.南海北部陆坡深水区构造演化及其特征[J].石油学报,2010,31(4):528-533.
[15]龚铭,李唐根,伍泓.南沙海域构造演化与油气资源前景[J].天然气工业,2004,24(3):32-35.
[16]吕学菊,肖力,林正良,等.珠江口盆地西部珠三坳陷沉降史分析[J].新疆石油地质,2008,29(2):195-197.
[17]夏斌,崔学军,张宴华,等.南海扩张的动力学因素及其数值模拟讨论[J].大地构造与成矿学,2005,29(3):328-333.
[18]Ben Avraham Z,Uyeda S.The evolution of the China Basin and theMesozoic paleography of Borneo[J].Earth Planet.Sci.Lett.,1973,18(2):365-376.
[19]Tapponnier P,Peltzer G,Armijo R.On the mechanics of the collisionbetween India and Asia[J].Geological Society of London SpecialPublication 19,1986:115-157.
[20]Taylor B,Hayes D E.The tectonic evolution of the South China SeaBasin[M]//Hayes D E.The tectonic and geologic evolution of SoutheastAsia Seas and Islands:AGU Geophysical Monograph 27.Washington:AGU,1980:89-104.
[21]郭峰,蔡周荣,万志峰,等.徐家围子断陷深层挤压构造样式及成因分析[J].断块油气田,2010,17(6):714-717.
[22]王春修,张群英.珠三坳陷典型油气藏及成藏条件分析[J].中国海上油气,1999,13(4):248-253.
[23]于开平,张功成,梁建设,等.珠江口盆地恩平凹陷油气成藏条件研究[J].石油实验地质,2011,33(5):509-512.
[24]赵红兵,严科.近岸水下扇砂砾岩沉积特征及扇体分布规律[J].断块油气田,2011,18(4):438-441.
[25]付广,王立志.源断裂在断陷盆地油运聚成藏中的作用研究[J].断块油气田,2011,18(6):686-690.
[26]高渐珍,薛国刚,慕小水,等.东濮凹陷复杂断块群成藏主控因素及成藏模式[J].断块油气田,2011,18(6):691-695.
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