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139 条记录 (耗时 0.014 秒)

    Well mandrel having a casing shield
    1.
    发明授权
    Well mandrel having a casing shield 失效
    有壳牌的人手

    公开(公告)号：US3807499A

    公开(公告)日：1974-04-30

    申请号：US32486773

    申请日：1973-01-18

    申请人： CAMCO INC

    发明人： TAUSCH G ,  TERRAL B

    IPC分类号： E21B23/03 ,  E21B17/14

    CPC分类号： E21B23/03

    摘要： A well mandrel having an internal valve pocket for communication with the interior of the mandrel and the well tubing with at least one port extending outwardly from the valve pocket and a shield positioned between the outer end of the port for protecting a casing from fluid flow through the port. The outer end of the port being spaced internally of the outer periphery of the mandrel, and a passageway extending between the outer end of the port and the shield and in communication with the exterior of the mandrel. The port extending laterally outward and the passageway extending longitudinally along the exterior of the mandrel. The passageway extending on either side of the shield to provide a sufficient area for reducing fluid velocity and concentration of fluid wear on the casing. The longitudinal axis of the port being perpendicular, in a mandrel cross section, to the mandrel radius which extends through the vertical axis of the pocket.

    摘要翻译： 具有用于与心轴内部连通的内部阀口和井管的井芯具有至少一个从阀口向外延伸的端口和位于端口外端之间的屏蔽件，用于保护套管免受流体流过 港口。 所述端口的外端在所述心轴的外周边部分间隔开，并且在所述端口的外端和所述屏蔽之间延伸并且与所述心轴的外部连通的通道。 端口横向向外延伸，并且通道沿着心轴的外部纵向延伸。 该通道在屏蔽的两侧延伸，以提供足够的面积，以减少流体速度和套管上流体磨损的集中。 端口的纵向轴线在心轴横截面中垂直于穿过口袋的垂直轴线延伸的心轴半径。

    Subsurface well safety valve
    2.
    发明授权
    Subsurface well safety valve 失效
    表面安全阀

    公开(公告)号：US3799258A

    公开(公告)日：1974-03-26

    申请号：US20040171

    申请日：1971-11-19

    申请人： CAMCO INC

    发明人： TAUSCH G

    IPC分类号： E21B34/00 ,  E21B34/10 ,  E21B33/03 ,  E21B43/12

    CPC分类号： E21B34/106 ,  E21B2034/005 ,  Y10T137/7781

    摘要： A subsurface well safety valve for connection directly into a well tubing for shutting off flow of well fluids through the tubing when adverse well conditions occur, but yet providing a valve bore of substantially the same size as the bore of the well tubing for allowing unrestricted passage of well equipment. The valve bore of the safety valve including means for supporting a second safety valve in the event that the first safety valve becomes inoperative. A fluid control line extending from the surface to the first safety valve which valve includes a port communicating with the control line and opening into the valve bore with shearable means initially closing the port but when sheared communicating control fluid into the first valve bore for controlling a second safety valve supported in the first valve bore.

    摘要翻译： 一种地下井井安全阀，用于直接连接到油井管道中，用于在不利井条件出现时关闭井流体通过管道的流动，但是还提供了与井管大致相同尺寸的阀孔，以允许不受限制的通道 的设备。 安全阀的阀孔包括用于在第一安全阀不起作用的情况下支撑第二安全阀的装置。 一种从表面延伸到第一安全阀的流体控制线，该阀包括与控制线连通并与阀孔开口的端口，其中可切换的装置最初关闭端口，但是当剪切时将控制流体连通到第一阀孔中以控制 第二安全阀支撑在第一阀孔中。

    Positioning tool
    3.
    发明授权
    Positioning tool 失效
    定位工具

    公开(公告)号：US3741303A

    公开(公告)日：1973-06-26

    申请号：US3741303D

    申请日：1971-11-17

    申请人： CAMCO INC

    发明人： TERRAL B

    IPC分类号： E21B23/02 ,  E21B23/03

    CPC分类号： E21B23/02 ,  E21B23/03

    摘要： A positioning tool equipped with a pivoting locating finger which is actuated by engagement with an extended linear slot whose upper end is closed in a well tubing for placing well equipment in the precise position for setting in a well tubing thereby avoiding prematurely setting the well equipment at an undesired location in the tubing. The finger having a radial extending edge the longitudinal length of which is greater than the normal recesses in the well tubing whereby the finger may avoid the recesses and shoulders used to actuate the well equipment, and a spacer support supporting the well equipment desired to be actuated for positioning the well equipment when the locater finger engages the extended linear slot.

    Downhole power dissipator
    4.
    发明授权
    Downhole power dissipator 失效
    卧式电力分配器

    公开(公告)号：US3709294A

    公开(公告)日：1973-01-09

    申请号：US3709294D

    申请日：1971-04-16

    申请人： CAMCO INC

    发明人： KILGORE M

    IPC分类号： E21B43/119 ,  E21B43/00

    CPC分类号： E21B43/1195

    摘要： A downhole power dissipator for protecting a packer in a casing in a well bore from a sudden increase in pressure by providing a closed collapsible chamber positioned adjacent the packer and preferably between the packer and the point of pressure increase. Said chamber includes a compressible gas and means allowing the gas in the chamber to become compressed when the chamber is subjected to a predetermined external increase in pressure. The chamber is attached to the packer whereby the chamber is retrievable from the well bore and said chamber including a passageway for passage of well equipment.

    摘要翻译： 一种井下功率消散器，用于通过提供邻近封隔器定位的闭合的可折叠室，并且优选地在封隔器和压力点之间来保护井筒中的封套中的封隔器免受突然的压力升高。 所述室包括可压缩气体，并且当室经受预定的外部压力升高时允许室中的气体变得压缩的装置。 该室附接到封隔器，从而可以从井眼回收室，并且所述室包括用于井设备通过的通道。