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    • 6. 发明申请
    • SYSTEM AND METHOD FOR SERVICING A WELLBORE
    • 用于维修井筒的系统和方法
    • WO2013028385A2
    • 2013-02-28
    • PCT/US2012/050564
    • 2012-08-13
    • HALLIBURTON ENERGY SERVICES, INC.MERRON, Matthew, JamesHOWELL, Matt, ToddPORTER, Jesse, Cale
    • MERRON, Matthew, JamesHOWELL, Matt, ToddPORTER, Jesse, Cale
    • E21B34/06
    • E21B34/103E21B34/14E21B2034/007
    • A wellbore servicing apparatus, comprising a housing defining an axial flowbore and comprising ports, a first sleeve, a second sleeve movable relative to the housing from (a) a first position in which the second sleeve obstructs fluid communication via the ports of the housing to (b) a second position in which the second sleeve allows fluid communication via the ports of the housing, and wherein the first sleeve is movable relative to the housing from (a) a first position in which the first sleeve does not allow a fluid pressure applied to the axial flowbore to move the second sleeve from the first position to the second position to (b) a second position in which the first sleeve allows a fluid pressure applied to the axial flowbore to move the second sleeve from the first position to the second position, and an expandable seat.
    • 一种井筒维修设备,包括限定轴向流孔并且包括端口的壳体,第一套筒,可从(a)第一位置移动的第二套筒,所述第一位置中第二套筒阻止经由所述壳体的端口的流体连通, (b)第二位置,其中所述第二套筒允许经由所述壳体的所述端口流体连通,并且其中所述第一套筒可相对于所述壳体移动,从(a)第一位置,所述第一套筒不允许流体压力 施加到轴向流动孔以将第二套筒从第一位置移动到第二位置到(b)第二位置,其中第一套筒允许施加到轴流孔的流体压力将第二套筒从第一位置移动到第二位置 第二位置和可扩展座椅。