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川北地区下侏罗统大安寨段陆相页岩油勘探方向再认识

熊亮 董晓霞 王同 魏力民 欧阳嘉穗 王保保 冯少柯

熊亮, 董晓霞, 王同, 魏力民, 欧阳嘉穗, 王保保, 冯少柯. 川北地区下侏罗统大安寨段陆相页岩油勘探方向再认识[J]. 石油实验地质, 2024, 46(5): 989-1001. doi: 10.11781/sysydz202405989
引用本文: 熊亮, 董晓霞, 王同, 魏力民, 欧阳嘉穗, 王保保, 冯少柯. 川北地区下侏罗统大安寨段陆相页岩油勘探方向再认识[J]. 石油实验地质, 2024, 46(5): 989-1001. doi: 10.11781/sysydz202405989
XIONG Liang, DONG Xiaoxia, WANG Tong, WEI Limin, OUYANG Jiasui, WANG Baobao, FENG Shaoke. Reassessment of exploration directions of continental shale oil in Lower Jurassic Da’anzhai Member in northern Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2024, 46(5): 989-1001. doi: 10.11781/sysydz202405989
Citation: XIONG Liang, DONG Xiaoxia, WANG Tong, WEI Limin, OUYANG Jiasui, WANG Baobao, FENG Shaoke. Reassessment of exploration directions of continental shale oil in Lower Jurassic Da’anzhai Member in northern Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2024, 46(5): 989-1001. doi: 10.11781/sysydz202405989

川北地区下侏罗统大安寨段陆相页岩油勘探方向再认识

doi: 10.11781/sysydz202405989
基金项目: 

中国石化科技攻关项目“阆中地区侏罗系成藏体系研究与目标优选”(P23147)资助。

详细信息
    作者简介:

    熊亮(1975—),男,硕士,研究员,从事非常规油气勘探开发工作。E-mail:xiongliang.xnyq@sinopec.com。

    通讯作者:

    董晓霞(1983—),女,硕士,副研究员,从事非常规油气勘探与综合地质研究。E-mail:dongxiaoxia.xnyq@sinopec.com。

  • 中图分类号: TE132.1

Reassessment of exploration directions of continental shale oil in Lower Jurassic Da’anzhai Member in northern Sichuan Basin

  • 摘要: 川北地区下侏罗统大安寨段是四川盆地产油主力层系之一。近年来,随着非常规勘探理论的发展,开始转变思路针对大安寨段页岩储层开展勘探,川北地区陆相页岩油勘探方向的认识得到提高。基于LY1及YY2等页岩油探井的岩心、实验、钻井、压裂等资料,对其油气形成条件、资源潜力、工程地质条件等3个方面进行了再认识。研究表明:(1)阆中大安寨段二亚段页岩具备良好的资源基础和形成条件,勘探潜力巨大。大二亚段主要发育页岩、介壳灰岩、页岩夹介壳灰岩3种岩性,页岩烃源品质较好,整体处于中成熟—高成熟阶段,生烃强度为(20~90)×104 t/km2,滞留烃量占总生烃量的66%~78%,页岩油资源量为3.26×108 t;(2)研究区大二亚段页岩样品的裂缝网络不发育,具有渗流条件差、可钻性和可压性条件差的特征,基质型页岩油具有原油黏度大、含蜡量高的特征,页岩样品渗流条件和页岩油流动性之间的耦合配置关系是目的层高产的关键;(3)在目前基质型页岩勘探成效不佳的情况下,建议采用常规—非常规结合的勘探思路,对研究区页岩—灰岩互层型储层成藏体系进行研究,将优质页岩与裂缝—孔隙型灰岩的层段作为有利的勘探目标,通过地质—工程一体化研究方法,对可钻性、可压性及排采等方面的技术难题进行攻关,提升工程工艺水平。

     

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出版历程
  • 收稿日期:  2023-12-06
  • 修回日期:  2024-08-02
  • 网络出版日期:  2024-09-26
  • 刊出日期:  2024-09-26

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