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    • 3. 发明授权
    • Fracturing fluid and method of use
    • 压裂液和使用方法
    • US06729408B2
    • 2004-05-04
    • US10117499
    • 2002-04-05
    • Jerald HinkelErnest BrownCurtis BoneyGregory Sutton
    • Jerald HinkelErnest BrownCurtis BoneyGregory Sutton
    • E21B4326
    • C09K8/62C09K8/52
    • Improved aqueous fracturing fluids are disclosed that are particularly useful as well stimulation fluids to fracture tight (i.e., low permeability) subterranean formations. Gas wells treated with these fracturing fluids have rapid cleanup and enhanced well production. The fluids contain small but sufficient amounts of certain amine oxides to aid in the removal of the fracturing fluid from the formation. By facilitating the removal of fluid from the invaded zones, the amount of damage to the fracture faces in the formation is thereby minimized. The amine oxides correspond to the formula I, wherein R1 is an aliphatic group of from 6 to about 20 carbon atoms, and wherein R2 and R3 are each independently alkyl of from 1 to about 4 carbon atoms. The amine oxides in which R1 is an alkyl group are preferred, and those in which R1 is an alkyl group of from 8 to 10 carbon atoms and R2 and R3 are each methyl or ethyl groups are most preferred
    • 公开了改进的水性压裂液,其特别有用以及用于破裂紧密(即低渗透性)地下地层的刺激流体。 用这些压裂液处理的气井可以快速清理和提高井的产量。 流体含有少量但足够量的某些氧化胺以有助于从地层中去除压裂液。 通过促进流体从入侵区域的移除,由此最小化了地层中断裂面的损伤量。 氧化胺对应于式I,其中R 1是6至约20个碳原子的脂族基团,并且其中R 2和R 3各自独立地为具有1至约4个碳原子的烷基。 优选其中R 1为烷基的氧化胺,其中R 1为8至10个碳原子的烷基和R 2和R 3各自为甲基或乙基的那些是最优选的