辛红刚,田杨,冯胜斌,岳贤和,陈薪凯,淡卫东,罗顺社

• 1:长庆油田勘探开发研究院
• 2:长江大学非常规油气省部共建协同创新中心
• 3:长江大学地球科学学院

摘要(Abstract)：

鄂尔多斯盆地长7段具有较好的页岩油资源潜力。长7段砂岩夹层型页岩油的勘探开发已经取得了实质性突破，泥页岩型页岩油的勘探开发潜力巨大，是长庆油田未来重要的油气接替资源，但其相关地质基础性研究相对薄弱。通过对宁228井长7段全取心段厘米级岩心观察描述及系统采样，一系列实验测试分析及鉴定结果表明：长7段主要发育黑色页岩、暗色泥岩、粉细砂岩及凝灰岩4种岩石类型；长7段烃源岩整体条件优越，泥页岩有机碳含量高，生烃潜力大，有机质类型以Ⅰ型、Ⅱ型为主，均处于低成熟-成熟阶段，其中黑色页岩具有更高的有机质丰度；长7段主要储集空间为原生孔隙和次生孔隙，泥页岩主要发育有机孔和无机孔，粉细砂岩主要发育残余粒间孔、粒内孔和粒间孔，凝灰岩则以粒间孔、矿物粒内孔为主；长7段整体含油性较好，但可动性差异性大，砂岩、凝灰岩的流体可流动性较好，泥页岩的可流动性较差。总之，典型夹层型页岩油精细解剖分析可以为推动鄂尔多斯盆地页岩油规模性开发提供有利指导。

关键词(KeyWords)： 鄂尔多斯盆地长7段;夹层型页岩油;沉积学特征;潜力评价

Abstract:

Keywords:

基金项目(Foundation): 湖北省教育厅科学研究计划资助项目(Q20221311);; 非常规油气省部共建协同创新中心开放基金项目(UOG2022-40)

作者(Author): 辛红刚,田杨,冯胜斌,岳贤和,陈薪凯,淡卫东,罗顺社

DOI: 10.19509/j.cnki.dzkq.tb20220224

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