张春明;姜在兴;王俊辉;姜华;

• 1:中国石油勘探开发研究院石油地质研究所

• 2:中国地质大学(北京)能源学院

摘要(Abstract)：

惠民凹陷临南地区古近系沙三下亚段沉积相类型及砂体展布规律复杂,制约该地区进一步中深层勘探.根据岩心观察、录井、测井及地震等资料对研究区进行沉积学研究,分析各沉积微相的识别标志、沉积特征及分布规律.结果表明:临南地区古近系沙三下亚段广泛发育三角洲前缘沉积,在三角洲前缘细粒沉积的大背景下,发育下切谷充填沉积.三角洲前缘沉积主要以细粒沉积为主,划分为三角洲前缘水下分流河道、分流间湾、河口砂坝和远砂坝4种微相;下切谷充填沉积以粗粒沉积为主,划分为下切谷水道、水道天然堤和水道间漫溢3种微相.该研究成果为该地区下一步勘探提供指导.

关键词(KeyWords)：沉积特征;沙三下亚段;下切谷;三角洲前缘;临南地区;惠民凹陷

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2009ZX05009-002)

作者(Author):张春明;姜在兴;王俊辉;姜华;

Email:

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