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    VIDEOMETRIC SYSTEMS AND METHODS FOR OFFSHORE AND OIL-WELL DRILLING
    1.
    发明公开
    VIDEOMETRIC SYSTEMS AND METHODS FOR OFFSHORE AND OIL-WELL DRILLING 有权
    视频指标，系统和沿海钻井和石油方法

    公开(公告)号：EP2563706A2

    公开(公告)日：2013-03-06

    申请号：EP11720826.4

    申请日：2011-04-28

    申请人： National Oilwell Varco, L.P.

    发明人： AUSTEFJORD, Arne ,  NESSJOEN, Pal, Jacob

    IPC分类号： B66C13/02 ,  B66C13/08 ,  B66C23/16

    CPC分类号： E21B19/165 ,  B66C13/02 ,  B66C13/085 ,  B66C23/16 ,  H04N7/18

    摘要： There is disclosed a crane control system for determining a suitable real-time operating regime for a crane arranged to lift cargo from a marine vessel, the system comprising: at least one imaging means associated with the crane; processing means; and memory means; wherein the or each said imaging means is arranged to capture images of the vessel when it is located generally below the crane and within the operational range of the crane; said processing means being operable to calculate from said captured images movement parameters characterising the movement of the vessel relative to the crane; and said memory contains performance data representative of the performance characteristics of the crane and cargo data representative of the weight of individual items of said cargo; the processing means further being configured to compare the calculated movement parameters to the performance data and the cargo data and to determine from said comparison a safe operating regime for the crane.

    A RISER
    4.
    发明公开
    A RISER 审中-公开
    立管

    公开(公告)号：EP2689094A2

    公开(公告)日：2014-01-29

    申请号：EP12716529.8

    申请日：2012-03-26

    申请人： National Oilwell Varco, L.P.

    发明人： SKAUGEN, Geir ,  AUSTEFJORD, Arne

    IPC分类号： E21B17/01

    CPC分类号： E21B17/01 ,  E21B17/015 ,  F16L11/083 ,  F16L55/027

    摘要： A riser and a method for reducing the risk of failure of a riser system comprising a riser (100) arranged between an installation and a subsea well the riser (100) having a bore (116) for conveying fluids therebetween, the method comprising the step of providing at least one vortex shedding member (111) in said bore (116) of said riser (100) and flowing the fluid between the subsea well and the installation.