塔里木盆地西昆仑山前柯东构造带构造模式探讨
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摘要
以地震资料为主,综合钻井、露头、野外地表调查、数字砂箱模拟实验结果等大量信息,结合区域地质特征,基本查清了塔里木盆地西昆仑山前柯东构造带主要断裂的性质及展布特征,研究认为该区断裂以下陡上缓的基底卷入式断裂为主,逆断裂下盘发育的隐伏构造是有利勘探目标。厘定了柯东构造带的平面分段特征,由东到西以调节断裂为界分为三大段,指出东西两大段圈闭规模相对较大,中段圈闭相对不太发育,油气勘探应突破东段、探索西段、准备中段。
Based on seismic data,combined with seismic data,drilling,outcrop,field survey,digital sand box simulation experimental results and other information and as well as regional geological features,the nature and distribution characteristics of the major faults of Kedong tectonic belt of western Kunlun piedmont in Tarim Basin were basically clarified.It was considered that the fractures were mainly of basement-involved type of fracture which had a upper steep portion and lower flat portion,and concealed structure which was developed in the down-dip of the compressional fault was favorable target of exploration.The plane segmented characteristics of Kedong tectonic zone is determined,the adjusting fault is divided into three segments from east to west,and it is pointed out that the trap size is relatively large in the west and east,middle traps are less developed,oil and gas exploration should break through the eastern section for exploration in the west and preparation fro the middle section.
Based on seismic data,combined with seismic data,drilling,outcrop,field survey,digital sand box simulation experimental results and other information and as well as regional geological features,the nature and distribution characteristics of the major faults of Kedong tectonic belt of western Kunlun piedmont in Tarim Basin were basically clarified.It was considered that the fractures were mainly of basement-involved type of fracture which had a upper steep portion and lower flat portion,and concealed structure which was developed in the down-dip of the compressional fault was favorable target of exploration.The plane segmented characteristics of Kedong tectonic zone is determined,the adjusting fault is divided into three segments from east to west,and it is pointed out that the trap size is relatively large in the west and east,middle traps are less developed,oil and gas exploration should break through the eastern section for exploration in the west and preparation fro the middle section.
引文
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[3]漆家福,夏义平,杨桥.油区构造解析[M].北京:石油工业出版社,2006.
[4]曾昌民,杜治利,周学慧,等.昆仑山前柯东构造带构造解析及形成机制[J].新疆石油地质,2011,32(2):133～136.
[5]何登发,杨庚,管树巍,等.前陆盆地构造建模的原理与基本方法[J].石油勘探与开发,2005,32(3):7～14.
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