柴达木盆地昆北断阶带构造特征及油气前景初步评价
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摘要
昆北断阶带是新生代以来形成的南倾北冲的斜坡带,其构造格局具有南北分带、东西分段、上下分层的特征,受此影响,昆北断阶带局部构造部位的油气聚集成藏差异性较大。油气勘探通常以区域范围内的构造单元为开展工作的基本对象,同一构造单元通常具有相对统一的基底特征、构造特征、地层沉积特征及相近的油气聚集成藏控制因素,进行构造单元划分有利于明确勘探方向、开展勘探部署。利用地震、钻井以及测井等方面的资料,在揭示了昆北地区各构造部位断裂的平面及剖面特征的基础上,主要依据基底构造的起伏形态、断裂展布与组合特征等,将昆北断阶带分为6个二级构造单元,即:西部斜坡带、中部褶皱带、南部褶皱带、东部褶皱带、东柴山褶皱带、北部斜坡带。根据各单元所处区域地质背景及内部断裂的组合关系,对其油气前景进行了初步评价,认为西部斜坡带为近期油气勘探的有利部位,北部斜坡带为有利勘探接替地带。这些研究结果为昆北地区油气地质研究、进一步油气勘探部署及优选有利勘探新领域等提供了借鉴和指导。
The North-Kunlun faults zone is a slope zone which is formed and developed in Cenozoic Era,and it has the features of different zones in north and south,different parts in east and west,and different formations above and below formation,and it effects this area so much that the local structures have quite different reservoir forming conditions in different parts.The hydrocarbon exploration mostly consider some structural unit as the basic research target because they have closer basement,structural,deposit characteristics and similar controlling factors of reservoir-formation,thus it is favorable to guide the exploration direction and deployment on the basis of the division of structural unit.So,based on seismic,drilling,and logging data,and according to the rolling shape of basement structure,faults distribution and their combination characteristics,the North-Kunlun faults zone can be divided into six structural sub-units,which are: west slope belt,central folding belt,north folding belt,east folding belt,Dongchaishan folding belt and north slope belt.By investigating their geological background and faults combination,and the prospect evaluation is also carried out,which indicates that the west slope zone is the more favorable area for present hydrocarbon exploration,the north slope belt is the favorable exploration succeed area.Thus,the conclusion will be helpful for the research of hydrocarbon formation and further hydrocarbon exploration in North-Kunlun area.
引文
[1]Fu Suotang,Xu Ligui,Gong Qinglin,et al.Hydrocarbon geo-logic characteristics and suggestions for further explorationand research in the southwestern Qaidam basin[J].China Pe-troleum Exploration,2010,15(1):6-10.[付锁堂,徐礼贵,巩庆林,等.柴西南区石油地质特征及再勘探再研究的建议[J].中国石油勘探,2010,15(1):6-10.]
    [2]Guan Dayong,Hu Wangshui,Zhang Wenjun,et al.Types ofreverse faults and their relationship with hydrocarbon migra-tion and accumulation in western Qaidam basin[J].XinjiangPetroleum Geology,2004,25(6):621-623.[官大勇,胡望水,张文军,等.柴西地区逆断层类型及其与油气运聚的关系[J].新疆石油地质,2004,25(6):621-623.]
    [3]Fu Suotang.Key controlling factors of reservoir-forming andfavorable exploration targets in the western Qaidam basin[J].Acta Sedimentologica Sinica,2010,28(2):373-376.[付锁堂.柴达木盆地西部油气成藏主控因素与有利勘探方向[J].沉积学报,2010,28(2):373-376.]
    [4]Jiang Bo,Si Dan,Wang Lansheng,et al.Characteristics of res-ervoir-forming and favorable reservoir prediction in the south-western Qaidam basin[J].Natural Gas Industry,2004,24(9):8-10.[江波,司丹,王兰生,等.柴西南地区油气成藏特征及有利储层预测[J].天然气工业,2004,24(9):8-10.]
    [5]Li Hongbo,Zhang Min,Zhang Chunming,et al.Geochemicalcharacteristics of Tertiary source rocks in the south area ofwestern Qaidam basin[J].Natural Gas Geoscience,2008,19(4):519-523.[李洪波,张敏,张春明,等.柴达木盆地西部南区第三系烃源岩地球化学特征[J].天然气地球科学,2008,19(4):519-523.]
    [6]Zhang Lei,Zhang Min.Geochemical research in well Lvcan 1of Tertiary source rocks in the south area of western Qaidambasin[J].Natural Gas Geoscience,2009,20(4):610-615.[张磊,张敏.柴达木盆地西部南区绿参1井烃源岩地球化学研究[J].天然气地球科学,2009,20(4):610-615.]
    [7]Wang Buqing,Huang Zhibin,Ma Peiling,et al.Establishmentof division standard,evidence and principle of structural unitsin Tarim basin[J].Geotectonica Etmetal Logenia,2009,33(1):86-93.[王步清,黄智斌,马培领,等.塔里木盆地构造单元划分标准、依据和原则的建立[J].大地构造与成矿学,2009,33(1):86-93.]
    [8]Ren Xincheng.Division of structural units for the Mesozoicwulungu depression in the Junggar basin[J].HydrocarbonGeophysics,2008,6(4):38-41.[任新成.准噶尔盆地乌伦古坳陷中生代构造单元划分[J].油气地球物理,2008,6(4):38-41.]
    [9]Pan Zhengzhong,Guo Qunying,Wang buqing,et al.New so-lution for the division of structural units in the southeasternTarim basin[J].Xingjiang Petroleum Geology,2007,28(6):781-783.[潘正中,郭群英,王步清,等.塔东南地区构造单元划分新方案[J].新疆石油地质,2007,28(6):781-783.]
    [10]Xing Qiang,Zhu Youqian,Fang Linhao.Basin structural evo-lution analysis through the sectional characteristics of basin-range couple belt,Junggar basin[J].Natural Gas Geoscience,2008,19(3):372-376.[刑强,朱有乾,方琳浩.从周缘盆—山耦合区带剖面结构特征分析准噶尔盆地构造演化[J].天然气地球科学,2008,19(3):372-376.]
    [11]Dai Junsheng.Analysis on controlling of structural styles topetroleum in the Qaidam basin[J].Experimental PetroleumGeology,2000,22(2):121-124.[戴俊生.柴达木盆地构造样式控油作用分析[J].石油实验地质,2000,22(2):121-124.]
    [12]Dai Junsheng,Cao Daiyong.Evolution characteristics of Ceno-zoic structural style in the Qaidam basin[J].Geologic Re-view,2000,46(5):455-460.[戴俊生,曹代勇.柴达木盆地新生代构造样式的演化特点[J].地质评论,2000,46(5):455-460.]
    [13]Chen Guomin,Wanyun,Zhang Peiping,et al.Traps character-istics in north Kunlun faults of Qaidam basin[J].Journal ofSouthwest Petroleum University:Natural Science Edition,2010,32(4):1-5.[陈国民,万云,张培平,等.柴达木盆地昆北断阶带圈闭特征[J].西南石油大学学报:自然科学版,2010,32(4):1-5.]
    [14]Fang Xiang,Jiang Bo,Zhang Yongshu.Fracture structure andhydrocarbon accumulation in the western Qaidam basin[J].Geology of Petroleum and Natural Gas,2006,27(1):56-61.[方向,江波,张永庶.柴达木盆地西部地区断裂构造与油气聚集[J].石油与天然气地质,2006,27(1):56-61.]
    [15]Li Yuxi,Pang Xiongqi,Tang Liangjie,et al.The S-N tectonicsystem and its controlling on petroleum in the western Qaid-am basin[J].Petroleum Exploration and Development,2002,29(1):65-68.[李玉喜,庞雄奇,汤良杰,等.柴西地区近南北向构造系统及其控油作用分析[J].石油勘探与开发,2002,29(1):65-68.]

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