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Study on Sequence Stratigraphy of Chagannuoer Depression in the Hailaer Basin
Author(s): 
Pages: 241-248
Year: Issue:  2
Journal: ACTA SEDIMENTOLOGICA SINICA

Keyword:  查干诺尔凹陷层序地层格架层序生储盖组合有利区带;
Abstract: 依据岩心、测井、录井和地震资料,以层序地层学理论为指导对海拉尔盆地查干诺尔凹陷下白垩统的扎赉诺尔群进行层序地层划分.扎赉诺尔群可划分为1个超层序,形成于凹陷断陷发育期,自下而上可划分为5个三级层序(Sq1、Sq2、Sq3、Sq4、Sq5).进而在层序框架内对沉积体系和生、储、盖发育特征进行了分析,预测了储集层有利发育区带.指出各个断阶带、斜坡带沉积的冲积扇、扇三角洲砂体和超层序的退积型层序组(Sq2、Sq3)发育的湖底扇砂体是油气良好的储集场所,是有利的勘探目标.
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