邓鑫;康志宏;陈阳阳;彭媛媛;肖海峰;韩慧宇;余旭东;赵晨;

• 1:中国地质大学(北京)能源学院

• 2:国土资源部页岩气资源战略评价重点实验室

• 3:中国地质大学(北京)地球物理与信息技术学院

• 4:中国石油辽河油田公司辽河工程技术处

摘要(Abstract)：

根据8条野外油气地质基干剖面调查、测井资料、岩心观察,以及薄片分析、X线衍射和扫描电镜等,分析川渝鄂地区龙马溪组黑色页岩沉积环境、分布规律及储集空间特征。结果表明:早志留世龙马溪组为受古隆起围限的浅海深水沉积的古地理格局,主要为深水陆棚相、浅海陆棚相、潮坪潟湖相沉积环境。优质黑色页岩主要发育于陆棚相,厚度为20~120m,呈北东向展布。龙马溪组页岩段黏土矿物质量分数分布在18.80%~30.19%之间,平均为26.50%,以伊/蒙混层为主,对CH4吸附性强。泥页岩孔隙度分布在0.47%~16.50%之间,平均为4.57%,渗透率为(0.004~0.917)×10~(-3)μm~2,页岩储集空间主要包括微孔隙和微裂缝2种类型,有机质孔最为发育,与含气量呈正相关关系。该结果为川渝鄂地区页岩气勘探和开发提供依据。

关键词(KeyWords)：龙马溪组;沉积环境;页岩厚度;岩矿特征;储集特征

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2017ZX05009-001);; 中国地质调查局南方地区构造演化控制页岩气形成与分布调查项目(DD20160183)

作者(Author):邓鑫;康志宏;陈阳阳;彭媛媛;肖海峰;韩慧宇;余旭东;赵晨;

Email:

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