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    • 4. 发明申请
    • METHOD AND APPARATUS TO SET A PLUG IN A WELLBORE
    • 在井眼中设置插头的方法和装置
    • WO2007022834A1
    • 2007-03-01
    • PCT/EP2006/006954
    • 2006-07-14
    • SERVICES PETROLIERS SCHLUMBERGERSCHLUMBERGER TECHNOLOGY B.V.SCHLUMBERGER HOLDINGS LIMITEDSCHLUMBERGER CANADA LIMITEDPRAD RESEARCH AND DEVELOPMENT NVRAYSSIGUIER, ChristopheALLOUCHE, Mickael
    • RAYSSIGUIER, ChristopheALLOUCHE, Mickael
    • E21B33/134E21B33/127
    • E21B33/1277E21B33/134
    • The invention provides an apparatus to be lowered in a borehole, comprising: (i) a delivery section for delivering a plugging fluid; (ii) a setting section comprising a longitudinal element and a flexible and permeable sleeve into which the plugging fluid is delivered; and (iii) a disconnect mechanism to allow the delivery section to be disconnected from the setting section, characterized in that the flexible sleeve is connected by at least one floating means to the longitudinal element. Additionally, the invention provides a method of installing a plug in a borehole, comprising: positioning the apparatus as described above in the borehole at a position at which the plug is to be installed, pumping fluid into the flexible sleeve via the delivery section so as to inflate the flexible sleeve, disconnecting the setting section from the delivery section, pumping an excess of the fluid into the borehole above the plug and withdrawing the delivery section from the borehole leaving the setting section at the position, said setting section acting as the plug.
    • 本发明提供了一种在钻孔中降低的装置,包括:(i)用于输送堵塞流体的输送部分; (ii)设置部分,其包括纵向元件和柔性且可渗透的套筒,所述封堵液被输送到所述套筒中; 和(iii)用于允许输送部分与设定部分分离的断开机构,其特征在于,柔性套筒通过至少一个浮动装置连接到纵向元件。 另外,本发明提供了一种在钻孔中安装塞子的方法,包括:将如上所述的装置定位在钻孔中的插头安装位置,通过输送部分将流体泵送到柔性套管中,以便 使柔性套筒膨胀,将设置部分从输送部分断开,将多余的流体泵送到插头上方的钻孔中,并将排出部分从钻孔中取出,使设置部分处于该位置,所述设置部分用作塞子 。