Method for single-stage treatment of siliceous subterranean formations
    1.
    发明授权
    Method for single-stage treatment of siliceous subterranean formations 有权
    硅质地层单层处理方法

    公开(公告)号:US08312929B2

    公开(公告)日:2012-11-20

    申请号:US12019394

    申请日:2008-01-24

    IPC分类号: E21B43/28

    CPC分类号: C09K8/74

    摘要: In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F−) by weight of the fluid and from 2% or less of sodium (Na+) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.

    摘要翻译: 在处理由井眼渗透的含砂岩地层的方法中,形成包含基本上可溶于水性流体的含有布朗斯台德酸,氟化氢源及其有机酸或其盐的含水流体的处理流体。 处理液含有少于约2%的流体重量的氟化物(F-),和流体重量的2%或更少的钠(Na +)。 在引入处理流体之前,将处理流体作为单阶段通过井筒引入地层,而不将酸含量的流体预吹入地层中。

    Method for Single-Stage Treatment of Siliceous Subterranean Formations
    3.
    发明申请
    Method for Single-Stage Treatment of Siliceous Subterranean Formations 有权
    硅酸盐地层单阶段处理方法

    公开(公告)号:US20090192057A1

    公开(公告)日:2009-07-30

    申请号:US12053875

    申请日:2008-03-24

    IPC分类号: C09K8/86

    CPC分类号: C09K8/74

    摘要: In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F−) by weight of the fluid and from 2% or less of sodium (Na+) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.

    摘要翻译: 在处理由井眼渗透的含砂岩地层的方法中,形成包含基本上可溶于水性流体的含有布朗斯台德酸,氟化氢源及其有机酸或其盐的含水流体的处理流体。 处理液含有少于约2%的流体重量的氟化物(F-),和流体重量的2%或更少的钠(Na +)。 在引入处理流体之前,将处理流体作为单阶段通过井筒引入地层,而不将酸含量的流体预吹入地层中。