Methods and apparatus for anchoring offshore pipeline
    1.
    发明授权
    Methods and apparatus for anchoring offshore pipeline 失效
    锚泊海上管道的方法和装置

    公开(公告)号:US4175620A

    公开(公告)日:1979-11-27

    申请号:US857981

    申请日:1977-12-06

    IPC分类号: E21B43/013 E21B7/12

    CPC分类号: E21B43/0135

    摘要: An offshore pipeline installation comprises a wellhead base and a pipeline anchor connected together to form a unit which is lowered onto a seabed. The anchor is pivotably positionable relative to the wellhead base about a vertical axis of a pilot tube. A pin pile is inserted through the tube and into the seabed to isolate the pipeline anchor from the wellhead and wellhead base in relation to forces generated in anchoring a pipeline to the pipeline anchor. The anchor is selectively positionable for alignment with pipeline means to be laid, and may include a socket mounted for pivotal movement about one or more, axis. The socket is operable to receive pipeline means laid away from the anchor. The anchor may further include a ramp which is inclined relative to horizontal. The ramp is positionable generally laterally relative to the lay path of the pipeline means so that pipeline means laid upon the ramp gravitates downwardly toward clamp means at the foot of the ramp.

    摘要翻译: 海上管道装置包括井口基座和连接在一起的管道锚固件,以形成一个下降到海床上的单元。 锚固件相对于井口基座围绕导向管的垂直轴线可枢转地定位。 销桩穿过管子插入海底,以将管道锚栓与井口和井口基座相关联,以将管道锚定在管道锚固件上产生的力。 锚固件可选择性地定位成与要铺设的管道装置对准,并且可以包括安装成用于绕一个或多个轴线枢转运动的插座。 该插座可操作以接收远离锚的管道装置。 锚固件还可以包括相对于水平面倾斜的斜面。 斜面可相对于管道装置的铺设路径大致横向地定位,使得铺设在坡道上的管道装置向下朝向在斜坡脚部的夹紧装置向下引导。

    Bottom jetting device
    2.
    发明授权
    Bottom jetting device 失效
    底部喷射装置

    公开(公告)号:US4127950A

    公开(公告)日:1978-12-05

    申请号:US802819

    申请日:1977-06-02

    摘要: The invention relates to a device for removing material from a submerged surface. The apparatus has a liquid manifold which supports downwardly directed liquid jets to dig or remove material and upwardly directed liquid jets to impel the removed material into the interior of a material removing housing and a gas manifold having a plurality of air jets to help urge the material into and through the material removing housing. Means are provided for dividing the liquid and gas manifolds into zones and for directing all of the supplied liquid and gas to one or more zones of the respective manifolds to either intensify and localize the effect of the fluids or to maintain the device in an operable condition when the source of gas and/or liquid is partially impaired.

    摘要翻译: 本发明涉及一种用于从浸没表面去除材料的装置。 该装置具有液体歧管,其支撑向下指向的液体射流以挖掘或移除材料和向上指向的液体射流,以将去除的材料推进到材料移除壳体的内部和具有多个空气射流的气体歧管以帮助促使材料 穿过材料去除壳体。 提供了用于将液体和气体歧管分成区域并将所有供应的液体和气体引导到相应歧管的一个或多个区域的装置,以加强和定位流体的作用或使装置维持在可操作状态 当气体和/或液体的来源部分受损时。