摘要:
唐庄油田位于济阳坳陷惠民凹陷中央隆起带西端,多年来一直是油气勘探的重要阵地。由于构造的复杂性和多物源等条件,该区勘探难度逐渐增大。从20世纪60年代的背斜构造油气藏逐渐过渡为断块油气藏、地层不整合油气藏,从古近系始新统沙河街组三段至新近系中新统馆陶组勘探层位有5个。笔者首先从油气成藏条件入手,分析了该区的油源条件、构造特征,对储集层进行了详细的评价。对该区的油藏类型和油气富集规律进行了总结。研究表明,该区发育背斜油气藏、断块油气藏、构造-岩性油气藏及地层不整合油气藏等多种油气藏;油藏从沙河街组三段至一段都有分布,且由南向北油气藏的层位依次抬高,全区各层位油气藏叠合连片构成复式油气藏。最后指出下一步勘探的三个研究方向。
关键词:
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唐庄油田
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油气藏
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储集层
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勘探潜力
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山东
Abstract:
The Tangzhuang Oil Field located at the westernmost part of the central uplift of the Huimin depression in the Jiyang down-warped region, Shandong has been an important oil and gas exploration area for many years:an anticline pool from the 1960s to the 1990s, and a fault-block pool and stratigraphic unconformity pool since 1992. Five exploration horizons have been identified in the third member of the Eocene (Paleogene) Shahejie Formation and Miocene (Neogene) Guantao Formation. The present paper deals, in detail, with oil source rocks, geological tectonics and structures, reservoir rocks, types of oil pools and accumulation within the oil field. A variety of oil pools are recognized, including anticline pool, fault-block pool, structural-lithologic pool and stratigraphic unconformity pool. They are scattered from the first to third members of the Shahejie Formation and connected together, constituting a typical composite oil pool within the Shengli oil province.
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