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南襄盆地襄枣坳陷深层海相古生界含油气前景初探

Petroleum Geology & Experiment(2009)

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Abstract
南襄盆地襄枣坳陷主要为受襄樊—广济断裂控制的南断北超的中新生代箕状坳陷,但中新生界经多年勘探未获突破。通过"造山带北侧油气资源战略选区"课题的调查研究,发现襄枣坳陷周缘及深部分布大片未变质的海相古生界。其中,下寒武统底部含磷泥页岩是潜在的优质烃源岩;下古生界白云岩及内部岩溶侵蚀面形成较好储集空间;下古生界含膏白云岩是潜在的盖层,具备形成油气的基本地质条件,但热演化程度偏高。襄枣坳陷深部海相古生界油气是值得深入探索的新层系和新领域。
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Key words
the Xiang-Zao Depression,oil and gas prospect,marine Paleozoic,the Nanxiang Basin
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