鄂尔多斯盆地西北部延长组长9-10油层组沉积体系研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
鄂尔多斯盆地西北部延长组长9-10油层组作为勘探新区,以往对其沉积体系和油气成藏规律等尚未做过深入研究。本文以大量野外露头剖面、钻井、测井、地震及各种化验分析资料为基础,以沉积学、层序地层学、石油地质学、地球物理学等理论为指导,系统研究了盆地西北部长9-10油层组沉积期的高分辨率层序地层格架特征、沉积体系特征、油气成藏条件及规律等,主要取得以下几个方面的进展:
     将长9、长10油层组划分为2个长期基准面旋回(SQ1-SQ2),5个中期基准面旋回,其中长9、长10油层组分别对应一个长期基准面旋回;并指出该沉积期短-中期基准面旋回主要呈上升不对称叠加样式。
     研究区在长9-10油层组沉积期主要发育西北、东北、南部-西南部三大物源体系。其中以西北物源体系为主要物源,南部-西南部物源体系为次要物源,随着湖盆的扩张及地层抬升,东北物源体系影响随之减小。
     研究区在该期主要发育辫状河、辫状河三角洲、曲流河三角洲和滨浅湖四种沉积相,受古气候、古构造背景、基准面旋回变化等因素所控制,主要发育东北部三角洲沉积体系、西部辫状河-辫状河三角洲沉积体系和西南部辫状河三角洲沉积体系,并以辫状河、辫状河三角洲沉积体系为主;沉积体系的发育和演化平面上呈由外向内逐渐变细、垂向上呈自下而上逐渐变深的沉积充填样式。
     油藏多位于构造高部位,烃源岩分布范围、四级层序界面与沉积相带的匹配控制油气富集。结合研究区成藏因素分析,在盆地西北部延长组长9-10油层组预测了5个主要有利目标区。其中以长91砂层组(SQ2-MC2旋回)、长92砂层组(SQ2-MC1旋回)为主力目标层,长101(SQ1-MC3旋回)为次要目标层。
As a new exploration eara, there is no further research on the reservoir-forming rule of oil and gas and the sedimentary system of Chang9-10 oil-bearing formations in the northwest of Ordos Basin. Based on plenty of field outcrops, drilling, logging, seismic and various laboratory analysis data, an investigation about Chang9-10 oil-bearing formations in northwest Ordos Basin on the sedimentay systems and the prediction of favorable targets in the chronostatigraphic sequence framework, under the guidance of Sedimentology, Sequence Stratigraphy, Petroleum Geology and Geophysics, has been finished with several progresses as followed:
     The research divides the interval Chang9 to Chang10 oil-bearing formations into two long-term base level cycles (SQ1 and SQ2),which in turn are further divided into five medium-term base level cycles, all of which are stacked in base level rise asymmetrical patterns.
     In Chang9-10 Period, the study area mainly developed three source systems in direction of northwest, northeast and southweat. The northwest one is the primary source system, southwest source system is the minor one, the northeast source system's impact on this eara decreased because of the expansion of the lake and the uplift of this formation.
     The types of developed sedimentary facies in this area include braided stream facies, delta deposits facies of braided stream and meandering river, coastal shallow-lake facies. Controlled by papaeoclmate, palaeotectono-geomorphic feature, base level cycling and so no, meandering delta systems in northeast, braided delta systems in southwest, braided stream-braided delta in northwest of this eara have been developed. The evolution of the sedimentary systems presents basin-filling characters of gradually fining from the margin to the center as well as vertically deepening upward.
     The hydrocarbon accumulation distributes in the high location of structural in this area, which in mainly lithologically ruled, with the fourth-order sequnence boundaries, sedimentary facies and quality reservoirs controlling hydrocarbon enrichment. Based on the study on the depositional systems and hydrocarbon accumulation, the paper finally proposed five favorable targets in this eara. Chang91 (SQ2-MC2 cycle) and Chang92 (SQ2-MC1 cycle) are the main target groups, Chang101 is the minor one.
引文
[1]长庆油田石油地质志编写组.中国石油地质志(卷12):长庆油田[M].北京:石油工业出版社,1992:57~96
    [2]赵文智,王新民,郭彦如等.鄂尔多斯盆地西部晚三叠世原型盆地恢复及其改造演化[J].石油勘探与开发,2006,33(1):6~13
    [3]付金华,郭正权,邓秀芹.鄂尔多斯盆地西南地区上三叠统延长组沉积相及石油地质意义[J].古地理学报,2005,7(1):34~44
    [4]Fisher W L, Brown L F, Scott Jr A J and McGowen J H.1969. Delta systems in the exploration for oil and gas, a research colloquium:Bur. of Econ. Geol, Univ. of Texas at Austin,78
    [5]Galloway. Genetic stratigraphic sequences in basin analysis:architecture and genesis of flooding-surface bounded depositional units[C]. AAPG,1989,73:125~142
    [6]李思田等.论沉积盆地的等时地层格架和基本建造单元[J].沉积学报,10(4):1992,11~22
    [7]李思田.沉积盆地分析中的沉积体系研究[J].矿物岩石地球化学通讯,6(2):1998,90~92
    [8]Vail PR. Sequence stratigraphy workbook, fundamentals of sequence stratigraphy[A]. AAPG Annual Convention Short Course:Sequences Stratigraphy Interpratation of Seismic Well and Outcrop Data[C]. AAPG,1998:217~223
    [9]邓宏文.美国层序地层学研究的新学派-高分辨率层序地层学[J].石油与天然气地质,1995,16(2):89~97
    [10]Perrodon, a micso foil and gas accumulations, EIFA quotatine,1983:187~210
    [11]顾家裕,张兴阳.油气沉积学发展回顾和应用现状[J].沉积学报,2003,21(1):137~141
    [12]朱筱敏.层序地层学原理[M].北京:石油工业出版社,1996
    [13]姜在兴,李华启等.层序地层学原理及应用[M].北京:石油工业出版社,1996:45~129
    [14]Baum, GR. and P.R.Vail, Sequence Stratigraphic concepts applied to Paleogene outcrops, Gulf and Atlantic basins:in C.K.wilgus, B.K.Hastings, H.Posamentier, J.Van wagoner, C.A.Ross and C.G.St.C.Kendall(eds.), Sea-Level changes:an integrated approach, Soc.Econ.Paleon. and Min.1988, Special Publication No.42:309~327
    [15]顾家裕.陆相盆地层序地层学格架概念及模式[J].石油勘探与开发,1995,22(4):6~10
    [16]纪友亮,张世奇.层序地层学原理及层序成因机制模式[M].北京:地质出版社,1998:1~90
    [17]顾家裕,邓宏文,朱筱敏.层序地层学及其在油气勘探开发中的应用论文集[M].北京:石油工业出版社,1997
    [18]Schoch, Robert M. Stratigraphy, principles and methods. Macmillan,1989,375.
    [19]李凤杰,王多云.鄂尔多斯盆地西峰油田延长组高分辨率层序地层学研究[J].天然气地球科学,2006,17(3):339~344
    [20]毛明陆,李元昊.鄂尔多斯盆地三叠系延长组层序地层特征[J].低渗透油气田,2005,10(4):5~11
    [21]杨俊杰.鄂尔多斯盆地构造演化与油气分布规律[M].北京,石油工业出版社,2002:86~96
    [22]李思田,林畅松,解习农.大型陆相盆地层序地层学研究--以鄂尔多斯中生代盆地为例[J].地学前缘,1995,2(34):33~136
    [23]陈刚.中生代鄂尔多斯盆地陆源碎屑成分及其构造属性[J].沉积学报,1999,17(3):409~413
    [24]李德生.重新认识鄂尔多斯盆地油气地质学[J].石油勘探与开发,2004,31(1):1~7
    [25]邓秀芹,蔺防晓,刘显阳等.鄂尔多斯盆地三叠系延长组沉积演化及其与早印支运动关系的探讨[J].古地理学报,2008,10(2):159~166
    [26]赵重远.鄂尔多斯盆地的演化历史、形成机制河含油气有利地区.见:华北克拉通盆地形成与演化及油气赋存[C].西安,西北大学出版社.1990:93~122
    [27]何自新.鄂尔多斯盆地演化与油气[M].北京:石油工业出版社.2003:95~100
    [28]郑荣才,尹世民,彭军.基准面旋回结构与叠加样式的沉积动力学分析[J].沉积学报,2000,18(3):369~375
    [29]傅强,李益.鄂尔多斯盆地三叠系延长组长8—长7油层组高分辨率层序地层格架及其地质意义[J].现代地质,2006,20(4):579~584
    [30]蔡希源,李思田.陆相盆地高精度层序地层学-隐蔽油气藏勘探基础、方法与实践[M].北京:地质出版社,2003:67~257
    [31]李凤杰,王多云.鄂尔多斯盆地西峰油田延长组高分辨率层序地层学研究[J].天然气地球科学,2006,17(3):339~344
    [32]邓宏文,王洪亮等.层序地层地层基准面的识别、对比技术及应用[J].石油与天然气地质,1996,16(3):177~1843
    [33]邓宏文,王洪亮,钟宁宁.沉积物体积分配原理--高分辨率层序地层学的理论基础[J].地学前缘,2000,7(4):305~313
    [34]王鸿祯.中国层序地层研究[M].广州:广东科技出版社,2000:1~457
    [35]薛良清.层序地层学在湖相盆地中的应用探讨[J].石油勘探与开发,1997,24(6):95-98
    [36]蔡希源,李思田.陆相盆地高精度层序地层学—隐蔽油气藏勘探基础、方法与实践[M].北京:地质出版社,2003:67~257
    [37]韩永林,李健,王海红,张钊.鄂尔多斯盆地西南缘晚三叠世早期沉积体系分析[J].低渗透油气田,2005,10(4):1~4
    [38]陈刚,孙建博,周立发等.鄂尔多斯盆地西南缘中生代构造事件的裂变径迹年龄记录[J].中国科学(D辑:地球科学),2007,37(增刊Ⅰ):110-118
    [39]赵重远.鄂尔多斯及山西地块构造及沉积盆地的形成、演化及其与油气关系[M].北京:石油工业出版社,1998:3-7
    [40]陈刚.中生代鄂尔多斯盆地陆源碎屑成分及其构造属性[J].沉积学报,1999,17(3):409-413
    [41]罗静兰,史成恩等.鄂尔多斯盆地周缘及西峰地区延长组长8、长6沉积物源—来自岩石地球化学的证据[J].中国科学D辑:地球科学,2007,37(增刊Ⅰ):62~72
    [42]曹红霞,李文厚,何卫军等.鄂尔多斯盆地宜川地区延长组物源分析[J].煤田地质与勘探,2007,35(6):14~17
    [43]M clennan S M, Hemming S, M cDaniel M J, et al. Geochemi cal approaches to sedimentation, provenance and tectonics. In:Jonhanson M J. ed. Processes Controlling the Composition of Clastic Sediments. Boulder, Colorado:Geological Society of America Special Paper.1993.21~40
    [44]毛龙江,庞奖励等.南京下蜀黄土图解法与矩值法粒度参数对比研究[J].陕西师范 大学学报(自然科学版),2007,35(3):95~99
    [45]窦伟坦.鄂尔多斯盆地三叠系延长组沉积储层成藏研究[D].成都:成都理工大学,2005
    [46]王英华,张绍平,潘荣胜主编.阴极发光技术在地质学中的应用[M].北京:地质出版社,1990
    [47]聂永生,田景春等.鄂尔多斯盆地白豹-姬塬地区上三叠统延长组物源分析[J].油气地质与采收率,2004,11(5):4~6
    [48]蔺宏斌,姚泾利.鄂尔多斯盆地南部延长组沉积特征与物源探讨[J].西安石油学院学报(自然科学版),2000,15(5):7~9
    [49]刘少峰,柯爱蓉,吴丽云等.鄂尔多斯西南缘前陆盆地沉积物源分析及其构造意义[J].沉积学报,1997,15(1):157~160
    [50]郭艳琴,李文厚,胡友洲等.陇东地区上三叠统延长组早中期物源分析与沉积体系[J].煤田地质与勘探,2006,34(1):1~4
    [51]赵文智,何登发等.石油地质综合研究导论[M].北京:石油工业出版社,1999
    [52]侯林慧,彭平安,于赤灵等.鄂尔多斯盆地姬塬-西峰地区原油地球化学特征及油源分析[J].地球化学,2007,36(5):497~506
    [53]杨守业,李从先.REE示踪沉积物物源研究进展[J].地球科学进展.1994,14(2):164~167
    [54]银晓等.鄂尔多斯盆地姬塬地区延长组长8时期物源分析[J].岩性油气藏.2008,20(3):59~63
    [55]鲁洪波,姜在兴.稀土元素地球化学分析在岩相古地理研究中的应用[J].石油大学学报(自然科学版),1999,23(1):6~9
    [56]梁积伟,肖丽等.鄂尔多斯盆地晚三叠世早期物源分析[J].西北地质.2008,41(2):81~85
    [57]刘昊伟.鄂尔多斯盆地白豹地区延长组长8沉积相研究[D].西安:西北大学,2007
    [58]冯增昭等.中国沉积学[M].北京:石油工业出版社,1994
    [59]侯林慧,彭平安,于赤灵等.鄂尔多斯盆地姬塬-西峰地区原油地球化学特征及油源分析[J].地球化学,2007,36(5):497~506
    [60]李振宏,张军,郑聪斌.鄂尔多斯盆地西缘断裂特征与油气运聚研究[J].石油物探,2005,33(3):248-252
    [61]梅志超,彭荣华,杨华.陕北上三叠统延长组含油砂体的沉积环境[J].石油与天然气地质,1989,9(3)261~267
    [62]柳益群,李文厚,冯乔.鄂尔多斯盆地东部上三叠统含油砂岩的古地温及成岩阶段[J].地质学报,1997,71(1):65~74
    [63]卢进才,李玉宏,魏仙祥,魏建设.鄂尔多斯盆地三叠系延长组长7油层组油页岩沉积环境与资源潜力研究[J].吉林大学学报(地球科学版),2006,36(6):928~932
    [64]张文正,杨华,傅锁堂.鄂尔多斯盆地长91湖相优质烃源岩的发育机制探讨[J].中国科学(D辑:地球科学),2007,37(增刊1):33~38

© 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