塔里木盆地塔中地区卡塔克古隆起演化和沉降-反转史
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摘要
在盆地的构造演化过程中,古隆起是盆地构造演化中特定的构造,其构造演化影响着盆地的油气生成及运聚。根据地震剖面、钻井、测井等资料,对塔里木盆地塔中地区卡塔克隆起构造特征及其反转史进行研究。结果表明:卡塔克隆起多表现为基底卷入式断裂及多个"Y"字型断裂,花状构造样式,多数断裂断至二叠系顶面;卡塔克隆起在震旦—早奥陶世阶段为北倾斜坡,中奥陶世末期塔里木盆地由拉张转为挤压,构造反转,此时卡塔克隆起雏形基本形成,并形成了前述断裂构造样式;晚奥陶—中泥盆世末隆起基本定型,构造形态保持至今;中泥盆世—中新世期间,虽经历了强烈的构造运动,但未改变卡塔克隆起的形态。
Paleo-uplift is a particular structure which was formed during the basin tectonic evolution.Paleo-uplift tectonic evolution impacted on hydrocarbon generation,migration and accumulation in the basin.Tectonic characteristics and inversion history of Kartake uplift in central Tarim Basin were researched on the basis of seismic cross-section,drilling data and logging data.The results show that Kartake uplift displayed more performances for the basement-involved fracture,a number of "Y"-shaped fractures,flower-shaped structure pattern,and the majority of fractures broken down to Permian top.From Sinian to Early Ordovician,Kartake uplift was a northward slope,then at the end of Middle Ordovician,the aforementioned fracture tectonic style formed and the embryonic shape of Kartake uplift basically formed because the stress in the Tarim Basin changed from tension to compression and fractures was inversed.From Late Ordovician to the end of Middle Devonian,uplift shape was set basically,and structural feature was remained so far.Although from Middle Devonian to Miocene was a strong tectonic movement phase,the form of Katake uplift didn t change.
Paleo-uplift is a particular structure which was formed during the basin tectonic evolution.Paleo-uplift tectonic evolution impacted on hydrocarbon generation,migration and accumulation in the basin.Tectonic characteristics and inversion history of Kartake uplift in central Tarim Basin were researched on the basis of seismic cross-section,drilling data and logging data.The results show that Kartake uplift displayed more performances for the basement-involved fracture,a number of "Y"-shaped fractures,flower-shaped structure pattern,and the majority of fractures broken down to Permian top.From Sinian to Early Ordovician,Kartake uplift was a northward slope,then at the end of Middle Ordovician,the aforementioned fracture tectonic style formed and the embryonic shape of Kartake uplift basically formed because the stress in the Tarim Basin changed from tension to compression and fractures was inversed.From Late Ordovician to the end of Middle Devonian,uplift shape was set basically,and structural feature was remained so far.Although from Middle Devonian to Miocene was a strong tectonic movement phase,the form of Katake uplift didn t change.
引文
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[16]沈华,陈发景,尹微.伸展构造体系中反转构造研究[J].特种油气藏,2005,12(1):23-26.SHEN Hua,CHEN Fa-jing,YIN Wei.Inversion struc-ture in expanding structure system[J].Special Oil&Gas Reservoirs,2005,12(1):23-26.
[2]王子煜,陆克政,漆家福,等.塔里木盆地塔中凸起的构造演化及其与油气藏的关系[J].石油学报,1998,22(4):14-17.WANG Zi-yu,LU Ke-zheng,Qi Jia-fu,et al.Relationbetween tectonic evolution and oil gas reservoir inTazhong uplift of Tarim Basin[J].Acta Petrolei Sinica,1998,22(4):14-17.
[3]张宗命.初论塔里木盆地构造中央隆起带地层系统与构造演化[C]//童晓光,梁狄刚.塔里木盆地油气勘探论文集.乌鲁木齐:新疆科技卫生出版社,1992:83-102.
[4]童晓光,梁狄刚,贾承造,等.塔里木盆地石油地质研究新进展[M].北京:科学出版社,1996.
[5]张小兵,赵锡奎.塔里木盆地塔中构造演化与志留系油气关系[J].天然气勘探与开发,2004,27(2):11-15.ZHANG Xiao-bing,ZHAO Xi-kui.Relationship betweenTazhong tectonic evolution and Silurian hydrocarbon dis-tribution in Tarim Basin[J].Natural Gas Exploration andDevelopment,2004,27(2):11-15.
[6]朱同兴,黄志英,尹福光.楚雄中生代前陆盆地的构造沉降史研究[J].沉积与特提斯地质,2000,20(4):20-30.ZHU Tong-xing,HUANG Zhi-ying,YIN Fu-guang.Mi-sozoic tectonic subsidence in the Chuxiong foreland basin,Yunnan[J].Sedimentary Geology and Tethyan Geology,2000,20(4):20-30.
[7]周祖翼.反转构造[J].地质科技情报,1994,13(1):3-11.ZHOU Zu-yi.Inversion tectonics:progress and prospects[J].Geological Science and Technology Information,1994,13(1):3-11.
[8]刘新月,常波涛,孙连浦,等.反转构造的反转程度及其与油气聚集的关系[J].油气地质与采收率,2006,13(2):53-55.LIU Xin-yue,CHANG Bo-tao,SUN Lian-pu,et al.Re-versal degree of reversal structures and its relation withhydrocarbon accumulation[J].Petroleum Geology andRecovery Efficiency,2006,13(2):53-55.
[9]WATTS A B,RYAN W B F.Flexure of the lithosphereand continental margin basins[J].Tectonophysics,1976,36(1):25-44.
[10]ALLEN P A,ALLEN J R.Basin analysis principles andapplication[M].London:Blackwell Scientific Press,1990.
[11]吕修祥,胡轩.塔里木盆地塔中低凸起油气聚集与分布[J].石油与天然气地质,1997,18(4):288-293.LXiu-xiang,HU Xuan.Hydrocarbon accumulationand distribution in Tazhong low uplift of Tarim Basin[J].Oil&Gas Geology,1997,18(4):288-293.
[12]张宗命,贾承造.塔里木克拉通盆地内古隆起及其找油气方向[J].西安石油学院学报:自然科学版,1997,12(3):8-14.ZHANG Zong-ming,JIA Cheng-zao.Palaeohighs in cra-ton basin of Tarim and the exploration objectives[J].Journal of Xian Petroleum Institute(Natural Science E-dition),1997,12(3):8-14.
[13]张小兵,赵锡奎.塔里木盆地塔中隆起构造演化与油气关系[J].沉积与特提斯地质,2004,24(2):70-74.ZHANG Xiao-bing,ZHAO Xi-kui.Tectonic evolutionand its bearings to the oil and gas with in the central Ta-rim uplift of the Tarim Basin,Xinjiang[J].Sedimenta-ry Geology and Tethyan Geology,2004,24(2):70-74.
[14]贾承造.中国塔里木盆地构造特征与油气[M].北京:石油工业出版社,1997.
[15]李德生.塔里木盆地油气勘探前景[J].新疆石油地质,2001,22(2):91-92.LI De-sheng.Oil and gas exploration potential of TarimBasin[J].Xinjiang Petroleum Geology,2001,22(2):91-92.
[16]沈华,陈发景,尹微.伸展构造体系中反转构造研究[J].特种油气藏,2005,12(1):23-26.SHEN Hua,CHEN Fa-jing,YIN Wei.Inversion struc-ture in expanding structure system[J].Special Oil&Gas Reservoirs,2005,12(1):23-26.
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