Method and apparatus for isolating a zone of wellbore and extracting a
fluid therefrom
    1.
    发明授权
    Method and apparatus for isolating a zone of wellbore and extracting a fluid therefrom 失效
    用于分离井的区域并提取其中的流体的方法和装置

    公开(公告)号:US5242022A

    公开(公告)日:1993-09-07

    申请号:US741253

    申请日:1991-08-05

    摘要: A method and apparatus for isolating a zone (12) of a wellbore (14) penetrated by a casing (16) and then opening ports (28) in the zone (12) for extraction or injection of fluids is provided. The zone (12) is isolated by inflating jackets (42) and then closing a safety valve (38) by sliding a sliding member (44) relative to a first conduit (46). The ports (28) are opened by sliding a piston (80) of a sliding sleeve valve (76) so that openings (84) therein align with the ports (28). The invention provides improved zone isolation and reduced wear of seals (86) in the sliding sleeve valve (76).

    摘要翻译: 提供一种用于隔离由壳体(16)穿透的井眼(14)的区域(12)并且然后在区域(12)中的开口端口(28)用于萃取或注入流体的方法和装置。 通过膨胀夹套(42)隔离区域(12),然后通过相对于第一管道(46)滑动滑动构件(44)来关闭安全阀(38)。 通过使滑动套筒阀76的活塞(80)滑动使得开口(84)与端口(28)对准,开口(28)。 本发明提供了改进的隔离区域和减小滑动套筒阀(76)中的密封件(86)的磨损。

    Method and apparatus for completing well
    3.
    发明授权
    Method and apparatus for completing well 失效
    完成方法和设备

    公开(公告)号:US4605067A

    公开(公告)日:1986-08-12

    申请号:US593394

    申请日:1984-03-26

    CPC分类号: E21B33/12 E21B33/14

    摘要: A well drilled with air or gas as a circulating medium traversing pay zones with greater than normal pressures or pressures such that hydrocarbons would permeate drilling fluids and cement is drilled and completed while permitting a continuous flow of hydrocarbons from the well until it is desired to shut the well in at the surface. The intermediate casing string and the production casing string cooperate with the tubing so that the cement for the production string may be positioned without contact with the hydrocarbons.

    摘要翻译: 用空气或气体作为循环介质钻井,穿过带有大于正常压力或压力的工作区,使得碳氢化合物渗透钻井液和水泥,钻井并完成,同时允许烃从井中连续流动,直到需要关闭 井中的表面。 中间套管柱和生产套管柱与管道配合,使得用于生产线的水泥可以被定位而不与烃接触。

    Whipstock and method for directional well drilling
    4.
    发明授权
    Whipstock and method for directional well drilling 失效
    定向井钻井的创业板和方法

    公开(公告)号:US4182423A

    公开(公告)日:1980-01-08

    申请号:US882581

    申请日:1978-03-02

    IPC分类号: E21B7/06 E21B7/08

    CPC分类号: E21B7/061

    摘要: A wedge-shaped whipstock is provided for directional well drilling which tapers from the lead end to a thick section at the bottom, and is fabricated from a tough polymeric material. An adhesive coating is applied to the outside surface of the wedge for permanent adherence of the whipstock to the surface of the drill hole. A deformable highly viscous material can fill and complement the internal wedge portion to produce a cylindrical configuration prior to use. Alternatively, or in conjunction with the deformable viscous material, a compressive element having a shaped compression face and made from a frangible material may be formed on the drill bit and/or attached to the prepared whipstock for the lowering of the tool into the drill hole and bonding the whipstock in place. The bottom surface of the whipstock is reinforced for positioning in the hole over a bridge plug or broken drill pipe. The weight of the drill bit and stem applied to the compressive element deforms the viscous filler material and laterally sets the whipstock in the hole. Rotation of the drill bit destroys the compressive element; and the drill, following the face of the wedge, drills an offset hole at an angle to the original. Various attachments, arrangements, and materials are provided for the whipstock wedge, filler portion and compressive element.

    摘要翻译: 提供了一种楔形造斜器,用于定向钻井,其从前端到底部的厚部分逐渐变细,并由韧性聚合材料制成。 将粘合剂涂层施加到楔形物的外表面,以将造斜器永久地粘附到钻孔的表面。 可变形的高粘度材料可以在使用之前填充和补充内部楔形部分以产生圆柱形构型。 或者,或者与可变形的粘性材料结合,可以在钻头上形成具有成形压缩面并且由易碎材料制成的压缩元件,和/或附接到所制备的造斜器上,以将工具降低到钻孔中 并将造斜器粘合到位。 造斜器的底面被加强,用于定位在桥塞或破碎的钻杆上的孔中。 施加到压缩元件上的钻头和杆的重量使粘性填料变形并将造斜器横向设置在孔中。 钻头的旋转破坏压缩元件; 并且钻头沿着楔形物的表面钻出与原件成一定角度的偏移孔。 为造斜器楔,填充部分和压缩元件提供各种附件,布置和材料。