川西龙门山冲断带构造油气藏类型及分布预测
摘要
野外地质考察和地震剖面解释表明川西龙门山冲断带具有复杂的构造地质特征,认为研究区发育类型众多的构造变形样式,主要有背冲断块、三角带构造、逆冲断层带和断块构造、断层相关褶皱构造以及双重构造等,不同类型的构造变形样式形成不同类型的构造油气藏。不同类型构造油气藏具有一定的分布规律,在平面上具有分带性,并与龙门山冲断带的主干断裂密切相关,如北川—映秀断裂与马角坝—通济场—双石断裂之间主要发育与断层相关的褶皱型油气藏;马角坝—通济场—双石断裂与广元—关口—大邑断裂之间主要发育三角带构造型油气藏以及一些断滑褶皱型油气藏,等等。在纵向上具有分层性,区域性滑脱层之上发育各种类型的构造油气藏,主要有背冲断块型油气藏、逆冲断裂带内的构造油气藏等,滑脱层之下发育双重构造型油气藏、断层相关及与背斜有关的构造油气藏。
Field investigation and explained seismic profiles show that Longmen Mountains thrust belt has very complex structural characters,such as pop-up,triangle belt,fault related fold and duplex.These structures can form various kinds of hydrocarbon pools and have some regular patterns in their distributions: one is zonation,this means that the distribution of pools made of various kinds of structures are close related to the main faults on Longmen Mountains thrust belt,for example,there should be some faults related to fold type pools between the Beichuan-Yingxiu fault and the Majiaoba-Tongjichang-Shuangshi fault and some triangle belt type pools between the Majiaoba-Tongjichang-Shuangshi fault and the Guangyuan-Guankou-Dayi fault,etc.;the other is stratification,which means the detachment layers developed in Longmen Mountains thrust belt have very great influence on the pools' distribution in profiles,for example,the region on the detachment layers has more types of structural pools than that beneath the detachment layers.
Field investigation and explained seismic profiles show that Longmen Mountains thrust belt has very complex structural characters,such as pop-up,triangle belt,fault related fold and duplex.These structures can form various kinds of hydrocarbon pools and have some regular patterns in their distributions: one is zonation,this means that the distribution of pools made of various kinds of structures are close related to the main faults on Longmen Mountains thrust belt,for example,there should be some faults related to fold type pools between the Beichuan-Yingxiu fault and the Majiaoba-Tongjichang-Shuangshi fault and some triangle belt type pools between the Majiaoba-Tongjichang-Shuangshi fault and the Guangyuan-Guankou-Dayi fault,etc.;the other is stratification,which means the detachment layers developed in Longmen Mountains thrust belt have very great influence on the pools' distribution in profiles,for example,the region on the detachment layers has more types of structural pools than that beneath the detachment layers.
引文
[1]刘和甫,梁慧社,蔡立国,等.川西龙门山冲断系构造样式与前陆盆地演化[J].地质学报,1994,68(2):101-118.
[2]Worley B A,Wilson C J L.Deformation partitioning and foliationreactivation during transpressional orogenesis,an example fromthe Central Longmenshan,China[J].Journal of StructuralGeology,1996,18(4):395-411.
[3]Arne D,Worley B,Wilson C,et al.Differential exhumation inresponse to episodic thrusting along the eastern margin of the Ti-betan Plateau[J].Tectonophysics,1997,280(3/4):239-256.
[4]刘树根.龙门山冲断带与川西前陆盆地的形成演化[M].成都:成都科技大学出版社,1993:17-21.
[5]刘树根,赵锡奎,罗志立,等.龙门山造山带—川西前陆盆地系统构造事件研究[J].成都理工学院学报,2001,28(3):221-230.
[6]刘树根,罗志立,赵锡奎,等.龙门山造山带—川西前陆盆地系统形成的动力学模式及模拟研究[J].石油实验地质,2003,25(2):432-438.
[7]刘树根,罗志立,赵锡奎,等.中国西部盆山系统的耦合关系及其动力学模式——以龙门山造山带—川西前陆盆地系统为例[J].地质学报,2003,77(2):177-186.
[8]Harrowfield M J,Wilson C J L.Indosinian deformation of theSongpan Garze Fold Belt,northeast Tibetan Plateau[J].Jour-nal of Structural Geology,2005,27(1):101-117.
[9]陈竹新,贾东,张惬,等.龙门山前陆褶皱冲断带的平衡剖面分析[J].地质学报,2005,79(1):38-45.
[10]金文正,汤良杰,杨克明,等.川西龙门山褶皱冲断带分带性变形特征[J].地质学报,2007,81(8):1072-1080.
[11]金文正,汤良杰,杨克明,等.龙门山冲断带构造特征研究主要进展及存在问题探讨[J].地质论评,2008,54(1):37-46.
[12]罗志立.龙门山造山带岩石圈演化的动力学模式[J].成都地质学院学报,1991,18(1):1-7.
[13]Jia Dong,Wei Guoqi,Chen Zhuxin,et al.Longmen Shan fold-thrust belt and its relation to the western Sichuan Basin in centralChina:New insights from hydrocarbon exploration[J].AAPGBulletin,2006,90(9):1425-1447.
[14]魏力民,曹烈,朱彤,等.金马—聚源地区中深层成藏条件及勘探前景[J].沉积与特提斯地质,2001,21(2):64-71.
[15]朱彤,李秋野,梁恩宇,等.金马—聚源地区沙溪庙组油气勘探前景研究[J].天然气工业,2002,22(2):14-17.
[16]朱彤,梁恩宇.龙门山中段前缘鸭子河构造深层须家河组油气勘探[J].成都理工学院学报,2001,28(1):59-63.
[17]刘大成,李书舜,周志军,等.鸭子河构造深层须家河组油气勘探目标选择与评价[J].天然气勘探与开发,2002,25(1):38-45.
[18]Reid A J,Wilson C J L,Liu S.Structural evidence for the Per-mo-Triassic tectonic evolution of the Yidun Arc,eastern TibetanPlateau[J].Journal of Structural Geology,2005,27(1):119-137.
[19]Chen Shefa,Wilson C J L.Emplacement of the Longmen ShanThrust-Nappe Belt along the eastern margin of the Tibetan Plat-eau[J].Journal of Structural Geology,1996,18(4):413-430.
[20]Ali J R,Lo C H,Thompson G M,et al.Emeishan basalt Ar-Aroverprint ages define several tectonic events that affected the west-ern Yangtze platform in the Mesozoic and Cenozoic[J].Journalof Asian Earth Sciences,2004,23(2):163-178.
[21]Liu Shugen,Luo Zhili,Dai Sulan.The uplift of the Longmen-shan thrust belt and subsidence of the west Sichuan Foreland Ba-sin[J].Acta Geologica Sinica,1996,9(1):16-26.
[22]Wang Jinqi.Relationship between tectonic evolution and hydro-carbon in the foreland of the Longmen mountains[J].Journal ofSoutheast Asian Earth Science,1994,13(3/5):327-336.
[23]吴根耀,梁兴,叶舟.继承性构造与新生构造并存的时空发育特征及其油气勘探意义[J].现代地质,2008,22(5):766-778.
[24]汪泽成,赵文智,徐安娜,等.四川盆地北部大巴山山前带构造样式与变形机制[J].现代地质,2006,20(3):429-435.
[25]姚超,焦贵浩,王同和,等.中国含油气构造样式[M].北京:石油工业出版社,2004:12-160.
[26]罗志立,龙学明.龙门山造山带的崛起和川西前陆盆地的沉降[J].四川地质学报,1992,12(1):204-218.
[27]Harding TP.Petroleumtraps associated with wrench faults[J].AAPG Bulletin,1974,58(7):1290-1304.
[28]王红漫,温志新,梁运基,等.扭动构造与油气聚集[J].河南石油,1998,12(3):5-9.
[29]向奎.塔里木盆地西南边缘压扭构造体系及其石油地质意义[J].古地理学报,2006,8(2):233-240.
①李书兵,陈昭国,陈洪德,等.龙门山前缘油气地质特征及有利勘探区块评价.中国石化西南分公司.2005.
[2]Worley B A,Wilson C J L.Deformation partitioning and foliationreactivation during transpressional orogenesis,an example fromthe Central Longmenshan,China[J].Journal of StructuralGeology,1996,18(4):395-411.
[3]Arne D,Worley B,Wilson C,et al.Differential exhumation inresponse to episodic thrusting along the eastern margin of the Ti-betan Plateau[J].Tectonophysics,1997,280(3/4):239-256.
[4]刘树根.龙门山冲断带与川西前陆盆地的形成演化[M].成都:成都科技大学出版社,1993:17-21.
[5]刘树根,赵锡奎,罗志立,等.龙门山造山带—川西前陆盆地系统构造事件研究[J].成都理工学院学报,2001,28(3):221-230.
[6]刘树根,罗志立,赵锡奎,等.龙门山造山带—川西前陆盆地系统形成的动力学模式及模拟研究[J].石油实验地质,2003,25(2):432-438.
[7]刘树根,罗志立,赵锡奎,等.中国西部盆山系统的耦合关系及其动力学模式——以龙门山造山带—川西前陆盆地系统为例[J].地质学报,2003,77(2):177-186.
[8]Harrowfield M J,Wilson C J L.Indosinian deformation of theSongpan Garze Fold Belt,northeast Tibetan Plateau[J].Jour-nal of Structural Geology,2005,27(1):101-117.
[9]陈竹新,贾东,张惬,等.龙门山前陆褶皱冲断带的平衡剖面分析[J].地质学报,2005,79(1):38-45.
[10]金文正,汤良杰,杨克明,等.川西龙门山褶皱冲断带分带性变形特征[J].地质学报,2007,81(8):1072-1080.
[11]金文正,汤良杰,杨克明,等.龙门山冲断带构造特征研究主要进展及存在问题探讨[J].地质论评,2008,54(1):37-46.
[12]罗志立.龙门山造山带岩石圈演化的动力学模式[J].成都地质学院学报,1991,18(1):1-7.
[13]Jia Dong,Wei Guoqi,Chen Zhuxin,et al.Longmen Shan fold-thrust belt and its relation to the western Sichuan Basin in centralChina:New insights from hydrocarbon exploration[J].AAPGBulletin,2006,90(9):1425-1447.
[14]魏力民,曹烈,朱彤,等.金马—聚源地区中深层成藏条件及勘探前景[J].沉积与特提斯地质,2001,21(2):64-71.
[15]朱彤,李秋野,梁恩宇,等.金马—聚源地区沙溪庙组油气勘探前景研究[J].天然气工业,2002,22(2):14-17.
[16]朱彤,梁恩宇.龙门山中段前缘鸭子河构造深层须家河组油气勘探[J].成都理工学院学报,2001,28(1):59-63.
[17]刘大成,李书舜,周志军,等.鸭子河构造深层须家河组油气勘探目标选择与评价[J].天然气勘探与开发,2002,25(1):38-45.
[18]Reid A J,Wilson C J L,Liu S.Structural evidence for the Per-mo-Triassic tectonic evolution of the Yidun Arc,eastern TibetanPlateau[J].Journal of Structural Geology,2005,27(1):119-137.
[19]Chen Shefa,Wilson C J L.Emplacement of the Longmen ShanThrust-Nappe Belt along the eastern margin of the Tibetan Plat-eau[J].Journal of Structural Geology,1996,18(4):413-430.
[20]Ali J R,Lo C H,Thompson G M,et al.Emeishan basalt Ar-Aroverprint ages define several tectonic events that affected the west-ern Yangtze platform in the Mesozoic and Cenozoic[J].Journalof Asian Earth Sciences,2004,23(2):163-178.
[21]Liu Shugen,Luo Zhili,Dai Sulan.The uplift of the Longmen-shan thrust belt and subsidence of the west Sichuan Foreland Ba-sin[J].Acta Geologica Sinica,1996,9(1):16-26.
[22]Wang Jinqi.Relationship between tectonic evolution and hydro-carbon in the foreland of the Longmen mountains[J].Journal ofSoutheast Asian Earth Science,1994,13(3/5):327-336.
[23]吴根耀,梁兴,叶舟.继承性构造与新生构造并存的时空发育特征及其油气勘探意义[J].现代地质,2008,22(5):766-778.
[24]汪泽成,赵文智,徐安娜,等.四川盆地北部大巴山山前带构造样式与变形机制[J].现代地质,2006,20(3):429-435.
[25]姚超,焦贵浩,王同和,等.中国含油气构造样式[M].北京:石油工业出版社,2004:12-160.
[26]罗志立,龙学明.龙门山造山带的崛起和川西前陆盆地的沉降[J].四川地质学报,1992,12(1):204-218.
[27]Harding TP.Petroleumtraps associated with wrench faults[J].AAPG Bulletin,1974,58(7):1290-1304.
[28]王红漫,温志新,梁运基,等.扭动构造与油气聚集[J].河南石油,1998,12(3):5-9.
[29]向奎.塔里木盆地西南边缘压扭构造体系及其石油地质意义[J].古地理学报,2006,8(2):233-240.
①李书兵,陈昭国,陈洪德,等.龙门山前缘油气地质特征及有利勘探区块评价.中国石化西南分公司.2005.
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