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    WELL SCREEN ASSEMBLY
    65.
    发明公开
    WELL SCREEN ASSEMBLY 审中-公开

    公开(公告)号：EP3569813A1

    公开(公告)日：2019-11-20

    申请号：EP19182860.7

    申请日：2013-02-08

    申请人： Halliburton Energy Services, Inc.

    发明人： Fripp, Michael ,  Bonner, Aaron

    IPC分类号： E21B34/16 ,  E21B47/13

    摘要： A well screen assembly for use downhole comprising:
    a first fluid pathway configured to provide fluid communication between an exterior of a wellbore tubular and an interior of the wellbore tubular;a flow restrictor disposed in the fluid pathway;a first actuation system comprising a first receiving antenna, wherein the first receiving antenna is configured to generate an electric current in response to receiving a first electromagnetic signal having a first frequency; anda first sliding member disposed in series with the flow restrictor in the fluid pathway, wherein the sliding member is transitional from a first position to a second position in response to the electric current; wherein the sliding member prevents fluid communication along the fluid pathway when the sliding member is in the first position, and wherein the sliding member allows fluid communication along the fluid pathway when the sliding member is in the second position.

    DEVICE FOR TRANSFER OF ELECTRICAL SIGNALS AND/OR ELECTRICAL ENERGY
    69.
    发明公开
    DEVICE FOR TRANSFER OF ELECTRICAL SIGNALS AND/OR ELECTRICAL ENERGY 审中-公开

    公开(公告)号：EP2659496A4

    公开(公告)日：2017-11-08

    申请号：EP11854430

    申请日：2011-12-28

    申请人： TECHNI AS

    发明人： BORGEN HARALD

    IPC分类号： H01F38/14 ,  E21B47/12 ,  E21B47/13 ,  H01F38/18 ,  H02J5/00 ,  H04B5/00

    CPC分类号： H02J5/005 ,  E21B47/122 ,  H01F38/14 ,  H01F38/18 ,  H02J50/12 ,  H04B5/0031 ,  H04B5/0037

    摘要： A system for transmitting electrical signals and/or electrical energy via an electrically conductive medium, in which a plurality of electric wound coils is mounted on each side of the electrically conductive medium, conductors of the plurality of electric wound coils are arranged in parallel with respect to one another and each of the plurality of electric wound coils is oriented relative to each other in such a manner that winding wires are predominantly vectorially mounted in parallel, the conductors are mounted predominantly parallel to surfaces of the electrically conductive medium, the system reacts when a current is applied to the electric wound coils, thereby generating a magnetic field and generates an eddy current which circulates between an external and an internal surface of the electrically conductive medium, and a voltage is induced in the electric wound coils from the eddy current.