滨里海盆地阿斯特拉罕-阿克纠宾斯克隆起带盐下层系勘探潜力分析——以比克扎尔隆起区泥盆系为例
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摘要
滨里海盆地阿斯特拉罕-阿克纠宾斯克大型隆起带是一个极其富有的油气聚集带,已发现的大型和特大型油气田,如阿斯特拉罕、田吉兹、扎纳若尔、肯基亚克等油田均处于该隆起带上[1]。比克扎尔隆起与卡腊通-田吉兹隆起一样,作为大型隆起背景下的次一级隆起,具有相似的构造演化、沉积和地层特征。已发现油田的主要产层为盐下的石炭系,分布于盆地的边缘带;随着地质-地震研究程度的不断加深、新的勘探技术不断应用,滨里海盆地的油气勘探将会由边缘带向盆地中心转移。根据区域研究资料,结合地质、地震、钻井资料,笔者对滨里海盆地盐下层系中的泥盆系的构造演化、沉积环境、成藏条件及地层特征进行分析。研究认为滨里海盆地比克扎尔隆起区盐下层系中泥盆系有巨大的勘探潜力。
Abundant hydrocarbons are expected accumulated in the large-scale arched uplift of Astrakhan-Aktyubinsk,in Pre-capian basin,in which large oil and gas fields,like Astrakhan,Tengiz,Zhanazhor,have already been found.Biikzhal, as one of sub-uplifts,like Karaton-Tengiz has the same structural evolution history and depositional and stratigraphic features.For these oilfields,distributing on the edge of the basin,oil/gas producing layers mainly developed in carboniferous system,pre-salt sediment.With further research and application of new prospecting techniques,expanding exploration activities are turning to the center of the basin rather than the edge area.Structural evolution history,depositional environment,reservoir formation and stratigraphic features have been studied based on the geological,seismic and well data in this article.The conclusion was drawn that the Devonian system,with great hydrocarbon potential,are favorable for oil and gas exploration.
Abundant hydrocarbons are expected accumulated in the large-scale arched uplift of Astrakhan-Aktyubinsk,in Pre-capian basin,in which large oil and gas fields,like Astrakhan,Tengiz,Zhanazhor,have already been found.Biikzhal, as one of sub-uplifts,like Karaton-Tengiz has the same structural evolution history and depositional and stratigraphic features.For these oilfields,distributing on the edge of the basin,oil/gas producing layers mainly developed in carboniferous system,pre-salt sediment.With further research and application of new prospecting techniques,expanding exploration activities are turning to the center of the basin rather than the edge area.Structural evolution history,depositional environment,reservoir formation and stratigraphic features have been studied based on the geological,seismic and well data in this article.The conclusion was drawn that the Devonian system,with great hydrocarbon potential,are favorable for oil and gas exploration.
引文
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[11]Л.П.Мстиставская,任俞译.滨里海巨型台向斜东南部油气聚集的古构造条件[J].新疆石油地质,2002,23(4):351~354.
[2]马克西莫夫С.П.著,吴永甫译.苏联油气田手册[M].北京:石油工业出版社,1992,384~439.
[3]刘洛夫,朱毅秀,熊正祥,等.滨里海盆地的岩相古地理特征及其演化[J].古地理学报,2003,5(3):279~290.
[4]邱中建,张一伟,李国玉,等.田吉兹、尤罗勃钦碳酸盐岩油气田石油地质考察及对塔里木盆地寻找大油气田的启示和建议1998,3(1):49~56.
[5]钱桂华.哈萨克斯坦滨里海盆地油气地质特征及勘探方向.中国石油勘探,2005,5(4):60~67.
[6]刘淑萱.深层油气藏储集层与相态预测[M].北京:石油工业出版社,1992:1~15.
[7]陈洪涛,李建英,范哲清,等.滨里海盆地B区块盐丘形成机理和构造演化分析[J].石油地球物理勘探,2008,43(1).
[8]刘东周,窦立荣,郝银权,等.滨里海盆地东部盐下成藏主控因素及勘探思路[J].海相油气地质,2004,9(1~2):53~58.
[9]刘洛夫,郭永强,朱毅秀.滨里海盆地盐下层系的碳酸盐岩储集层与油气特征[J].西安石油大学学报(自然科学版),2007,22(1):53~63.
[10]王连岱,沈仁福,吕凤军,等.滨里海盆地石油地质特征及勘探方向分析[J].大庆石油地质与开发,2004,23(2):17~18.
[11]Л.П.Мстиставская,任俞译.滨里海巨型台向斜东南部油气聚集的古构造条件[J].新疆石油地质,2002,23(4):351~354.
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