柴北缘冷湖-南八仙构造带油气运移通道研究
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摘要
柴达木盆地北缘冷湖-南八仙构造带的油气勘探实践表明,研究区内主要有三种油气运移通道:连通的砂体和不整合面通常是油气侧向运移的通道,断层是油气进行垂向运移的重要通道。综合地质、地震、测井和分析化验等资料,应用现代油气成藏理论、地球物理学等理论和方法,对研究区的油气运移通道及其与油气成藏的关系进行了研究。研究结果表明,油气运移通道类型及其空间组合方式是控制油气运移、聚集以及成藏的主要因素。探讨了该区油气运移输导层(不整合面、连通砂体、断层及三者的组合形式)对油气运移、聚集、成藏的控制作用及其与油气藏形成和分布的关系,为勘探实践提供指导。
The practice of hydrocarbon exploration in Lenghu-Nanbaxian structural belt,the northern Qaidam Basin,shows that there are mainly three types of hydrocarbon migration pathways within the studied area,connected sand bodies and unconformityes are lateral migration pathways and faults are vertical migration pathways.The hydrocarbon migration pathways and their relationship with hydrocarbon accumulation are studied by synthetically applying the theories and methods of modern hydrocarbon accumulation and geophysics,geology,seismics,logging and analysis assay data.The results show that the types of hydrocarbon migration pathways and the assembly patterns are main control factors for hydrocarbon migration,accumulation and pool-forming.This research approaches the control of the transport layers(unconformity,connected sand body,fault and its assembly pattern) on hydrocarbon migration,accumulation and pool-forming and relationship with hydrocarbon formation and distribution,which can guide the practice of hydrocarbon exploration.
The practice of hydrocarbon exploration in Lenghu-Nanbaxian structural belt,the northern Qaidam Basin,shows that there are mainly three types of hydrocarbon migration pathways within the studied area,connected sand bodies and unconformityes are lateral migration pathways and faults are vertical migration pathways.The hydrocarbon migration pathways and their relationship with hydrocarbon accumulation are studied by synthetically applying the theories and methods of modern hydrocarbon accumulation and geophysics,geology,seismics,logging and analysis assay data.The results show that the types of hydrocarbon migration pathways and the assembly patterns are main control factors for hydrocarbon migration,accumulation and pool-forming.This research approaches the control of the transport layers(unconformity,connected sand body,fault and its assembly pattern) on hydrocarbon migration,accumulation and pool-forming and relationship with hydrocarbon formation and distribution,which can guide the practice of hydrocarbon exploration.
引文
[1]翟光明,徐凤银,李建青.重新认识柴达木盆地力争油气勘探获得新突破[J].石油学报,1997,18(2):1-7.
[2]罗群,庞雄奇.柴达木盆地断裂特征与油气区带成藏规律[J].西南石油学院学报,2003,25(1):1-5.
[3]汪立群,徐凤银,庞雄奇,等.马海-大红沟凸起油气勘探成果与柴达木盆地北缘的勘探方向[J].石油学报,2005,26(3):21-32.
[4]胡雄,李延钧,陈新领,等.柴北缘马海地区油气全烃地球化学特征与成因[J].天然气地球科学,2005,16(5):612-616.
[5]余一欣,汤良杰,马达德,等.柴达木盆地断裂特征研究[J].西安石油大学学报(自然科学版),2005,20(3):11-14.
[6]曹运江,陆廷清,牟中海,等.柴达木盆地北缘构造型式及油气勘探前景[J].西南石油学院学报,2000,22(3):9-12.
[7]穆剑,汪立群.论柴达木盆地冷湖-南八仙构造带的含油气远景[J].石油学报,1999,20(2):18-22.
[8]高先志,陈发景.南八仙构造油气成藏模式及其对柴北缘勘探的启示[J].石油实验地质,2001,23(2):154-159.
[9]Hindle A D.Petroleum migration pathways and change concentration:a three-dimensional model[J].AAPG Bull.,1997,81(9):1451-1481.
[10]秦长文,庞雄奇,李宏伟.台北凹陷侏罗系油气输导体系分析[J].天然气工业,2005,25(3):11-13.
[11]门相勇,赵文智,余辉龙.柴达木盆地北缘冷湖地区油气成藏条件研究与勘探建议[J].石油勘探与开发,2001,28(4):4-7.
[12]陈淑兰,罗群.柴达木盆地北缘西段断裂发育特征与油气聚集[J].天然气工业,2004,24(3):22-26.
[13]高先志,陈发景.柴达木盆地北缘西段油气成藏机理研究[J].地球科学-中国地质大学学报,2002,27(6):757-762.
[2]罗群,庞雄奇.柴达木盆地断裂特征与油气区带成藏规律[J].西南石油学院学报,2003,25(1):1-5.
[3]汪立群,徐凤银,庞雄奇,等.马海-大红沟凸起油气勘探成果与柴达木盆地北缘的勘探方向[J].石油学报,2005,26(3):21-32.
[4]胡雄,李延钧,陈新领,等.柴北缘马海地区油气全烃地球化学特征与成因[J].天然气地球科学,2005,16(5):612-616.
[5]余一欣,汤良杰,马达德,等.柴达木盆地断裂特征研究[J].西安石油大学学报(自然科学版),2005,20(3):11-14.
[6]曹运江,陆廷清,牟中海,等.柴达木盆地北缘构造型式及油气勘探前景[J].西南石油学院学报,2000,22(3):9-12.
[7]穆剑,汪立群.论柴达木盆地冷湖-南八仙构造带的含油气远景[J].石油学报,1999,20(2):18-22.
[8]高先志,陈发景.南八仙构造油气成藏模式及其对柴北缘勘探的启示[J].石油实验地质,2001,23(2):154-159.
[9]Hindle A D.Petroleum migration pathways and change concentration:a three-dimensional model[J].AAPG Bull.,1997,81(9):1451-1481.
[10]秦长文,庞雄奇,李宏伟.台北凹陷侏罗系油气输导体系分析[J].天然气工业,2005,25(3):11-13.
[11]门相勇,赵文智,余辉龙.柴达木盆地北缘冷湖地区油气成藏条件研究与勘探建议[J].石油勘探与开发,2001,28(4):4-7.
[12]陈淑兰,罗群.柴达木盆地北缘西段断裂发育特征与油气聚集[J].天然气工业,2004,24(3):22-26.
[13]高先志,陈发景.柴达木盆地北缘西段油气成藏机理研究[J].地球科学-中国地质大学学报,2002,27(6):757-762.
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