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    Acid stimulating with downhole foam mixing
    2.
    发明公开
    Acid stimulating with downhole foam mixing 有权
    Stimulierung durchSä​​urebehandlungmit Schaummischung im Bohrloch

    公开(公告)号：EP1298281A1

    公开(公告)日：2003-04-02

    申请号：EP02256174.0

    申请日：2002-09-05

    申请人： Halliburton Energy Services, Inc. ,  Petro-Canada

    发明人： Chen, Alick ,  Rees, Matthew J. ,  Rispler Keith ,  Surjaatmadja, Jim B. ,  Khallad, Abraham

    IPC分类号： E21B43/27 ,  E21B43/25 ,  E21B43/26

    CPC分类号： E21B43/26 ,  C09K8/74 ,  E21B43/255

    摘要： Subterranean well formations (12) are acid stimulated using a plurality of jet nozzles (22) located in a spaced relation to the wall of the formation to form an annulus (28) between the nozzles and the formation. An acid-containing, stimulation fluid is pumped under pressure through the nozzles, into the annulus and against the wall of the formation. A gas is pumped into the annulus so that the stimulation fluid mixes with the gas to generate foam before the mixture is jetted towards the formation to impact the wall of the formation.

    摘要翻译： 使用多个与地层的壁间隔开的喷嘴（22）对地下井组（12）进行酸刺激，以在喷嘴和地层之间形成一个环（28）。 含酸的刺激流体在压力下通过喷嘴被泵送到环空中并抵靠地层的壁。 气体被泵送到环空中，使得刺激流体与气体混合以产生泡沫，然后将混合物朝向地层喷射以冲击地层的壁。