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建南致密砂岩气藏压裂液伤害主控因素

付美龙 胡泽文 黄倩 唐芳

付美龙, 胡泽文, 黄倩, 唐芳. 建南致密砂岩气藏压裂液伤害主控因素[J]. 钻井液与完井液, 2016, 33(6): 116-120. doi: 10.3969/j.issn.1001-5620.2016.06.021
引用本文: 付美龙, 胡泽文, 黄倩, 唐芳. 建南致密砂岩气藏压裂液伤害主控因素[J]. 钻井液与完井液, 2016, 33(6): 116-120. doi: 10.3969/j.issn.1001-5620.2016.06.021
FU Meilong, HU Zewen, HUANG Qian, TANG Fang. Key FactorsAffecting Damage by Fracturing Fluidsto Jiannan Tight Sandstone Gas Reservoir[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(6): 116-120. doi: 10.3969/j.issn.1001-5620.2016.06.021
Citation: FU Meilong, HU Zewen, HUANG Qian, TANG Fang. Key FactorsAffecting Damage by Fracturing Fluidsto Jiannan Tight Sandstone Gas Reservoir[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(6): 116-120. doi: 10.3969/j.issn.1001-5620.2016.06.021

建南致密砂岩气藏压裂液伤害主控因素

doi: 10.3969/j.issn.1001-5620.2016.06.021
基金项目: 

国家863计划项目“致密砂岩气藏高效钻井与压裂改造关键技术”之子课题二“致密气藏压裂改造技术研究(2013AA064802)

详细信息
    作者简介:

    付美龙,1967年生,教授、博导,从事油田化学和提高采收率方面的教学及科研工作。E-mail:805817751@qq.com。

  • 中图分类号: TE357

Key FactorsAffecting Damage by Fracturing Fluidsto Jiannan Tight Sandstone Gas Reservoir

  • 摘要: 实验测定了建南致密砂岩油气藏羧甲基羟丙基瓜胶压裂液、低聚物压裂液和羟丙基瓜胶压裂液3种压裂液破胶后的黏度、表面张力及残渣含量,发现3种压裂液破胶后的性能参数存在一定的差异。通过测试不同压裂液体系对岩心的总伤害率和基质伤害率并计算出了水锁伤害率,发现岩心的水锁伤害率(65%~80%)远大于基质伤害率(5%~15%),水锁伤害才是降低储层渗透率的主要伤害来源;且岩心基质伤害率和水锁伤害率不仅与压裂液的性能参数有一定的关系,还与岩心渗透率和岩性存在一定的关系。通过分解实验法逐步分析测定了这些因素对压裂液伤害的影响后得出,压裂液的残渣含量是影响基质伤害的主控因素;岩心渗透率是影响水锁伤害的主控因素。通过解水锁实验发现,严重水锁的岩心通过相应的解水锁措施后,岩心渗透率恢复值高达70以上,说明通过相应措施确实能减小水锁伤害。

     

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出版历程
  • 收稿日期:  2016-07-25
  • 刊出日期:  2016-11-30

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