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| 辽河拗陷东部凹陷南部地区古近系沉积体系与储层评价 |
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高华丽, 韩作振, 樊爱萍, 杨仁超
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山东科技大学地质科学与工程学院
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| Sedimentary Systems and Reservoir Assessment of the Paleogene Systems of the Southern Part of Eastern Sag in Liaohe Depression |
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GAO Lihua, HAN Zuozhen, FAN Aiping, YANG Renchao
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College of Earth Science Technology,Shandong University of Science and Technology
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| Detailed studies on a number of core sections,well logs and seismic date of the paleogene systems of the southern part of eastem sag in Liaohe Depression revealed theat six sedimentary systems,i,e.delta,lake,fan delta,braided river,delta,river and alluvial fan,were distinguished,The sedimentation in the studied area remarkably controlled reservoir and the variability of sedimentary facied caused the diversity of reservior sand bldies and the inhomogeneity of reservoir properties plane distribution;The best reservoir properties are the sand bodies of deltaic front and braided-river deltaic front;the better are the sand bodies of braided-river deltaic plain,deltaic front,braided river and meandering river;the medium reservoir properties are the sand bodies of delta plain,the fan-delta front,the alluvial-middle fan,beach-bar and turbidite fan;the wores are the sand bodies of upper fan and lower fan of alluvial fan,alluvial plain.The favorable sedimentary facies belt controlled the distribution of favorable reservoir and it was an important evidence for prediction favorable stratigraphiv reservoir. |
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