Apparatus and method for gravel packing an interval of a wellbore
    1.
    发明授权
    Apparatus and method for gravel packing an interval of a wellbore 有权
    用于砾石填充井眼间隔的装置和方法

    公开(公告)号:US06702018B2

    公开(公告)日:2004-03-09

    申请号:US09927217

    申请日:2001-08-10

    IPC分类号: E21B4304

    CPC分类号: E21B43/045 E21B43/04

    摘要: An apparatus and method for gravel packing an interval of a wellbore comprises an outer tubular (110), which forms a first annulus with the wellbore, and an inner tubular (114) disposed within the outer tubular (110) forming a second annulus therebetween. Within the second annulus is an axially extending production pathway (190) and an axially extending slurry passageway (194), which is defined between a channel (170) and the inner tubular (114). The outer tubular (110) has outlets (128) that are substantially aligned with outlets (178) of the channel (170). The portions of both the outer and inner tubulars (110, 114) adjacent the production pathway (190) have openings (122, 146). When a fluid slurry containing gravel is injected through the slurry passageway (194), the fluid slurry exits through the outlets (178, 128) leaving gravel in the first annulus, thereby gravel packing the interval.

    摘要翻译: 用于砾石填充井眼间隔的装置和方法包括与管井形成第一环形空间的外管(110)和设置在外管(110)内的内管(114),其在其间形成第二环。 在第二环形空间内是轴向延伸的生产路径(190)和轴向延伸的浆料通道(194),其限定在通道(170)和内管(114)之间。 外管(110)具有与通道(170)的出口(178)基本对齐的出口(128)。 邻近生产路径(190)的外管和内管(110,114)的部分具有开口(122,146)。 当通过浆料通道(194)注入含有砾石的流体浆料时,流体浆料通过出口(178,128)离开在第一环形空间中留下砾石,从而将间隔包裹起来。