唐相路,姜振学,张莺莺,高甜,黄何鑫,冯洁,姚立邈

• 1:中国石油大学(北京)油气资源与探测国家重点实验室
• 2:中国石油大学(北京)非常规天然气研究院
• 3:重庆地质矿产研究院页岩气所

摘要(Abstract)：

为了揭示我国南方海相页岩分布广泛,但含气性差异巨大的原因,选取渝东南地区五峰组—龙马溪组页岩含气量不同的2个典型井区A井区和B井区进行对比分析,结果表明:含气量高的A井区页岩具有有机碳含量高、成熟度高的特点,而含气量低的B井区页岩具有有机碳含量低、成熟度相对低的特点;A井区页岩具有伊/蒙混层含量低、比表面积大、有机质孔十分发育的特点,而B井区页岩具有伊/蒙混层含量高、比表面积小、有机质孔发育较少、矿物溶蚀孔十分发育的特点;A井区页岩裂缝基本不发育,而B井区页岩裂缝十分发育。因此,A井区生烃条件、储集条件和保存条件均优于B井区,是页岩气富集于A井区而未富集于B井区的原因。预测页岩气地质甜点需综合考虑生烃条件、储集条件和保存条件,三者相匹配是页岩气成藏的关键。

关键词(KeyWords)： 生烃条件;储集条件;保存条件;页岩气;渝东南地区

Abstract:

Keywords:

基金项目(Foundation): 国家科技重大专项课题(编号:2011ZX05018-002);; 重庆市国土资源和房屋管理局科技计划重大项目(编号:CQGT-KJ-2012)

作者(Author): 唐相路,姜振学,张莺莺,高甜,黄何鑫,冯洁,姚立邈

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