用户名: 密码: 验证码:
川东北地区构造特征及其对油气成藏的控制作用
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
川东北地区位于扬子地块的北缘,其北与秦岭造山带、西与龙门山逆冲带、东南部与华南褶皱系毗邻。本文根据该地区的构造变形和演化特征,结合区内基本石油地质条件,重点研究了大巴山逆冲推覆构造与油气成藏条件的关系。
    大巴山逆冲推覆构造带位于川、陕、鄂交界处,分隔着秦岭造山带与扬子地块。该带西北端受汉南地块限制,东部有黄陵地块的阻挡,其展布方向由西北部的北北东向、中部的近东西向、至东南部的北东东向,呈一向西南凸出的弧形,是由一系列呈向西南突出的巨型逆冲推覆断裂带构成。大巴山逆冲推覆构造以发育一系列的弧形逆冲断裂及断裂间所加褶皱断块为基本特征。自北东向西南,以城口-房县断裂、镇巴-鸡鸣寺断裂为界,可将大巴山逆冲推覆构造划分为北大巴山冲断褶带、南大巴山冲断褶带及南大巴山推覆前锋扩展褶皱带三部分;根据卷入推覆构造的地层年代、推覆前后地层接触关系、不同期推覆构造间的空间交切、复合关系等标志来判定,大巴山弧形推覆构造主要是印支、燕山和喜山三期推覆构造的叠加复合。因此,大巴山弧形构造带是一个具多成因、多期构造叠加的复杂弧形逆冲推覆构造带。 
    结合盆地古地理与构造演化分析,将盆地演化划分为早古生代的克拉通拗陷、晚古生代的克拉通裂陷和中生代的前陆盆地以及三叠纪至震旦纪的陆陆碰撞、中新生代的陆内造山构造演化阶段。通过对川东北地区NE、NW、EW 向构造相互形成时序关系分析,并与大巴山构造带及湘鄂西构造带的交切复合类比,从而在研究区筛分出印支、燕山和喜山三期构造。通过对各期构造的褶皱轴迹和共轭节理的统计分析,恢复了印支期、燕山期、喜山期构造的古应力场。
    在对研究区已知油气田解剖的基础上,系统论述了断层、不整合、构造叠加对油气的控制作用。并对研究区生、储、盖及其组合进行了研究,重点解剖了石炭系构造气藏的成藏体系、气藏特点及油气聚集规律,分析了二叠系生物礁类型及成礁序列、生物礁气藏特点及成藏模式,以及中三叠统构造-岩性气藏的基本特点和油气聚集规律。在以上综合研究基础上,对本区油气勘探前景区进行了预测,认为勘探重点应是南大巴山推覆前缘和米仓山—大巴山前缘的前陆盆地地区为油气勘探重点构造带。
Northeast Regional Of Sichuan lies in the north of Qingling and Yangzi Block,abus Longmen mountain thrust nappe tectonics in west, abuts South China fold systerm in Southeast. According to tectonics deformation, evolution characters and geological conditions, we studied the relationship of between Daba mountain thrust nappe and the formation of oil-gas.
    Daba mountain arc thrust nappe tectonics lie in the boundary of Sichuan province, Shanxi province and Hubei province, which separate Qinling and Yangzi block. There are Hannan block in the northwest and Huangling block in the east. Its extended direction is east-northeast in the northwest area, east-west in the middle area and east-northeast in the southeast area,being a southwestward arc made up of many thrust nappes. The main characters of Daba mountain thrust nappe tectonics are a series of arcual fractures and drapes among folds.Based on Chengkou-Fangxian fracture and Zhenba-Jiming temple fracture from north-west to west-south, there are three conformation zones as follows: north Dabas mountain nappe thrust folds,south Daba mountain nappe front thrust folds and south Daba mountain nappe front detachment folds.According to the involved periods of nappe tectonics,the relationship of strta nappe before and after, space and complex relationship in different nappe tectonics periods, we devided Daba mountain tectonics into yingzi period, yangshan period and xishan period.In short,Daba mountain arcual thrust nappes have different cause of formation and complex tectonics of various period.
    Combing the basin paleogeography and the evolution of structure, the basin evolutions were devided into craton depression in Early Palaeozoic, craton depression in Late Palaeozoic, foreland basin in Mosozoic, Land collision from Triassic period to Sinian period, and the stage of structure evolution in Mesozoic. By the analysis to the chronogenesis of NE、NW、EW structure in the Northeast of Sishuan ,and the compound analogy of Daba mountain structure belt with West Xiang’E structure belt, three stages which were Indo-chinese stage, Yanshan stage and Himalayan stage could be separated in the studied area. By statistics and analysis of fold axis、lines and conjugate joints in structures of every stages, the paleotectonic stress fields in Indo-chinese stage, Yanshan stage and Himalayan stage were resumed.
    Based on anatomizing known oil-gas fields in the field investigation, discussed systermical faults 、unconformity 、tectonic facies and its oil-gas-controlling. And researched source-reservoir-caprock and its associations, emphasis on anatomizing petroleum-entrapped systerm、properties of natural pools reservoirs and oil-gas accumulation regular pattern of Steep structure gas reservoirs, analysed Permian organic reef type、reef-building sequence、properties of natural pools reservoirs and model for formation reservoir ,and basic properties 、oil-gas accumulation regular pattern of middle Traiassic stratigraph reservoir. Based on above integrational research, forcasted oil-gas exploration prospect in the field investigation, we pointed out that South Daba mountain nappe front zones and Micang mountain foreland basin should be paid more and more attention to.
引文
1.刘和甫,梁慧社,蔡立国等. 1994. 川西龙门山冲断系构造样式与前陆盆地演化. 地质学报,68(2),101~118 
    2.郭正吾,邓康龄,韩永辉等,1996. 四川盆地形成与演化. 北京:地质出版社,89~102 
    3.贾承造等,2000. 前陆冲断带油气勘探. 北京:石油工业出版社,56~59 
    4.四川省地质矿产局,1991. 四川省区域地质志. 北京:地质出版社 
    5.胡光灿,谢姚祥,1997. 中国四川东部高陡构造石炭系气田. 北京:石油工业出版社 
    6.许效松、刘宝君、徐强等,1997. 中国西部大型盆地分析及地球动力学. 北京:地质出版社 
    7.何建坤、卢华复、张庆龙等,1991. 南大巴山冲断构造及其剪切挤压动力学机制. 高校地质学报,第3 卷,第4 期,419~428 
    8.包茨等,1985. 四川盆地地质构造特征及天然气远景预测. 天然气工业,第5 卷,第4期 
    9.甘昭国等,1988,四川盆地褶皱形成时间及对油气聚集的控制,天然气工业,第8 卷,第4 期 
    10.张力等,1993,大巴山前缘震旦系及下古生界含油气条件探讨,天然气工业,第13卷第1 期 
    11.张月华,1990,川东地区褶皱和裂缝发育期次,四川地质学报,第10 卷,第1 期 
    12.童崇光,1992,四川盆地断褶构造形成机制,天然气工业,第12 卷,第5 期 
    13.蒋炳铨,1984,川东一带隔挡式隔槽式褶皱形成力学机制,四川地质学报,第5 卷,第1 期 
    14.刘德良,宋岩,薛爱民等,2000,四川盆地构造与天然气聚集区带综合研究,北京:石油工业出版社 
    15.Sloss, L., L., Sequences in the cratoric interior of North America: Geol. Soc. America Bull. 1963, 74:94-114  
    16.Vail, P.R., Mitchun, R.M.Jr. and Thompson S Ⅲ, Seismic stratigraphy and global changes of sea level, Part1-4, In C.E. Parton (Editor): Seismic 
    Stratigraphy--Applications to Hydrocarbon Exploration, Am.Assoc.Pt. Geol.  (AAPG) Memoir 26,1977:P26-98 
    17.Pitman,W.C.,Relationship between eustasy and stratigraphic sequences of passive margins: Geological society of America Bulleti,1978,89:1389-1430 
    18.Maill,A.D., Eustatic sea level changes interpreted from seismic stratigraphy: a critique of method with particular  reference to the North Sea Jurassic record:Bull. Amer. Assoc. Petrol.1986, 69:685-687 
    19.Haq. B. U. Handenbol, J., and Vail,P.K.,Chronlogy of fluctuating sea levels since the Triassic (250 million years ago to present):Science, 1987, 235:1156-1167 
    20.Posamentier, H.W. and Vail, P. R.  Eustatic controls on clastic deposition Ⅱ--sequence and systems tract models .In: Sea-Level Changes: an Integrated Approach (Ed. By C.K. Wilgus, B. S. Hastings, C. G. St C. G. Kendall, H. W. Posamentier, C.A. Ross, and J.C. Van Wagoner), SEPM Special Publication, 1988,42:125-154 
    21.Willgus, C.K., et al (Editors), Sea level Changes---An Integrated Approach. Soc. Econ. Paletol. Mineral. Spec.Publ.,1988, 42:407 
    22.Sarg, J. F., Carbonate sequence stratigraphy: a case study for a tectonic origin of sequences and systems tracts, sedimentology, 1988,41:155-181 
    23.Jervey,M.T., Quantitative geological modeling of siliciclastic rock sequences and seisimic express: (in) sea-level changes--an integrated approach, SEPM special Publication,1988,NO.42 
    24.Brett, C. E. Goodman, W. M. and Lopuca, S.T., Sequences, cycles, and basin dynamics in the Silurian of the Appalachian foreland basin, Sedimentary Geology, 1990, 69(3/4):191-244   
    25.Cooper M.R. Tectonic cycles in Southern Africa. Earth Science Review, 1990, 28(4):321-364 
    [5]5R.K.Goldhammer, P.A.Dunn, L.A.Hardie, Depositional cycles, composite sea-level changes, cycle stacking patterns, and the hierarchy, of stratigraphic forcing: examples from Alpine Triassic platform carbonates, Geological Society of America Bulletin, 1990, 102:535-562 
    26.Schalager, w., The paradox of drowned reefs and carbonate platforms; Geological  Society of America Bulltin, 1981,92:197-211 
    27.Mitchum R .M., Van Wagoner J.C.  High frequency sequences and their stacking patterns: sequence-stratigraphic evidence of high frequency eustatic cycle. Sediment Geology, 1991,70:131-160 
    28.Posamentier, H.W.,Allen,G.P. and James, D.P., High resolution sequence stratigraphy—the east Conlee delta, Alberta,Jour.Sediment.Petrol., 1992,Vol.62,No.2 
    29.Posamentier, H.W.,1993, Variability of the sequence stratigraphic model: effects of local basin factors. Sediment Geol 86, 91-109 
    30.Cross, T.A. High-resolution stratigraphic correlation from the perspective of base-level cycle and sediment accommodation, 西北欧层序地层会议材料,1994 
    31.Jervey, M. T., Siliciclastic sequence development in foreland basins, with examples from the western Canada foreland basin. In Foreland Basins and Fold Belts (Ed, by R. W. Macqueen and D. A. Leckie), AAPG Memoir, 1992,55:47-80 
    32.Shanley K.W.and McCabe, P.J. Perspectives on the sequence stratigraphy of continental strata.AAPG Bulletin, 1994,78(4):544-568 
    33.徐怀大,王世凤,陈开远,1990,地震地层学解释基础,中国地质大学出版社 
    34.四川地质局地质测量队,1965,1:20 万南江幅地质图及地质报告,内部出版 
    35.四川地质局地质测量队,1970,1:20 万镇巴幅地质图及地质报告,内部出版 
    35.四川省地质局,1981,1:20 万仪陇幅地质图及地质报告,内部出版 
    36.四川省地质局航空区域地质调查大队,1981,1:20 万南通江幅地质图及地质报告,内部出版 
    37.四川省地质局第二区域地质测量队,1974,1:20 万南城口幅地质图及地质报告,内部出版 
    38.四川省地质局航空区域地质调查大队,1981,1:20 万南南充幅地质图及地质报告,内部出版 
    39.四川省地质局一0 七地质队,1980,1:20 万南达县幅地质图及地质报告,内部出版 
    40.四川省地质局一0 七地质队,1980,1:20 万南万县幅地质图及地质报告,内部出版 
    41.陕西省地质局区域地质测量队,1966,1:20 万南紫阳幅地质图及地质报告,内部出版 
    42.西南石油局,2001,川东北区块油气勘探三项资料评估及勘探工作建议,研究报告 
    43.西南石油局,2001,川东北区块通南巴构造带圈闭评价及井位论证,研究报告 
    44.杭州南华石油技术开发有限公司,2001,四川盆地川东、川西地区天然气成藏条件调研与鄂西渝东区、楚雄盆地类比研究报告,研究报告 
    45.中石化南方海相油气勘探项目经理部,2001,通南巴构造带油气勘探潜力分析与目标优选,研究报告 
    46.陕西省地质局,1991,.陕西省地质志,北京:地质出版社 
    47.国家地震局“中国岩石圈动力学地图集”编委会,1989,中国岩石圈动力学地图集,中国地图出版社 
    48.刘肇昌等,1996,扬子地台西缘构造演化与成矿,电子科技大学出版社 
    49.罗志立主编,1994,龙门山造山带的崛起和四川盆地的形成与演化,成都科技大学出版社 
    50.万天丰,1993,中国东部中新生代板内变形构造应力场及其应用,地质出版社 
    51.N. J. 普赖斯等,长庆石油勘探局科委、甘肃石油学会长庆分会翻译,1986,冲断推覆构造,甘肃科学技术出版社 
    52.朱志澄,1989,逆冲推覆构造,中国地质大学出版社 
    53.中国科学院地质研究所、武汉地质学院,1985,中国古地理图集,地图出版社 
    54.张国伟等,2001,秦岭造山带与大陆动力学,科学出版社 
    55.刘德良等,2000,四川盆地构造与天然气聚集带综合研究,石油工业出版社 
    56.王一刚等,2001,四川盆地古生界-上元古界天然气成藏条件及勘探技术,石油工业出版社 
    57.陆克政主编,2001,含油气盆地分析,石油大学出版社 
    58.徐怀大等主编,1997,从地震地层学到层序地层学,石油工业出版社 
    59.顾家裕等主编,1997,层序地层学及其在油气勘探开发中的应用,石油工业出版社 
    60.Roger W. Macqueen 和Dale A. Leckie 编,黄忠范等译,2001,前陆盆地和褶皱带,石油工业出版社

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700