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致密气藏防水锁易返排滑溜水研究与应用

刘培培

刘培培. 致密气藏防水锁易返排滑溜水研究与应用[J]. 钻井液与完井液, 2019, 36(6): 777-781,788. doi: 10.3969/j.issn.1001-5620.2019.06.021
引用本文: 刘培培. 致密气藏防水锁易返排滑溜水研究与应用[J]. 钻井液与完井液, 2019, 36(6): 777-781,788. doi: 10.3969/j.issn.1001-5620.2019.06.021
LIU Peipei. Study and Application of an Easy-to-flowback and Water Block Preventive Slick Water Fracturing Fluid for Tight Gas Reservoirs[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(6): 777-781,788. doi: 10.3969/j.issn.1001-5620.2019.06.021
Citation: LIU Peipei. Study and Application of an Easy-to-flowback and Water Block Preventive Slick Water Fracturing Fluid for Tight Gas Reservoirs[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(6): 777-781,788. doi: 10.3969/j.issn.1001-5620.2019.06.021

致密气藏防水锁易返排滑溜水研究与应用

doi: 10.3969/j.issn.1001-5620.2019.06.021
基金项目: 

中国石油天然气股份公司重大科技专项“松辽盆地南部致密油气成藏及动用技术研究”(2017B-4905);中国石油天然气股份有限公司科技项目“非常规储层改造持续重大攻关专项”(2016CGCGZ003)

详细信息
    作者简介:

    刘培培,1983年生,硕士,毕业于西南石油大学油气田开发工程专业,现主要从事油藏改造和压裂材料方面工作。电话18843813646;E-mail:pei668@126.com

  • 中图分类号: TE357.12

Study and Application of an Easy-to-flowback and Water Block Preventive Slick Water Fracturing Fluid for Tight Gas Reservoirs

  • 摘要: 吉林油田致密气储层微纳米级孔隙发育,喉道窄小且连通性差,属低孔低渗储层。随着气藏的长期开发,地层压力、产能的逐渐降低,水锁伤害的影响逐渐显现,导致压后返排难度大,加之黏土的膨胀运移与堵塞,进一步降低了储层有效渗透率,严重制约了气藏采收率的提高。针对此问题,研发了防水锁易返排滑溜水压裂液体系,该体系主要由减阻剂XY-205、纳米微乳助排剂与黏土稳定剂XY-63组成。实验证明该体系具有速溶与低黏特性,能够满足快速连续混配要求,减阻率能够能达到70%以上,表面张力比常规气井滑溜水降低40%以上,利于致密气井压后助排,且能够较好地抑制黏土膨胀,对地层伤害小。该滑溜水对岩心的伤害率为9.45%,24 h岩心渗透恢复率接近90%,解除水锁伤害程度较高。该滑溜水体系在致密气区块现场应用4口井,压裂成功率100%,压后返排率提高2倍以上,试气效果显著,具有较好的大规模推广应用前景。

     

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出版历程
  • 收稿日期:  2019-10-08
  • 刊出日期:  2019-12-30

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