【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。更多还原

【Abstract】 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.更多还原