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    • 3. 发明公开
    • AN ANNULAR BARRIER
    • 一个环形障碍
    • EP3216976A1
    • 2017-09-13
    • EP17165850.3
    • 2011-10-06
    • Welltec A/S
    • HALLUNDBÆK, JørgenHAZEL, PaulANDERSEN, Tomas Sune
    • E21B33/127
    • E21B33/1277
    • The present invention relates to an annular barrier for being expanded in an annulus between a well tubular structure and an inside wall of a borehole downhole. The annular barrier comprises a tubular part for mounting as part of the well tubular structure; an expandable sleeve made of a first metal, surrounding the tubular part and defining a space being in fluid communication with an inside of the tubular part, the expandable sleeve having a longitudinal extension, an inner face facing the tubular part and two ends; a connection part made of a second metal, connecting the expandable sleeve with the tubular part; an opening for letting fluid into the space to expand the sleeve.
    • 本发明涉及一种用于在井筒结构与井下钻孔内壁之间的环空中扩张的环形屏障。 环形屏障包括用于安装作为井管结构的一部分的管状部件; 由第一金属制成的可膨胀套筒,所述可膨胀套筒围绕所述管状部件并且限定与所述管状部件的内部流体连通的空间,所述可膨胀套筒具有纵向延伸部,面向所述管状部件的内表面和两个端部; 由第二金属制成的连接部分,将所述可膨胀套筒与所述管状部分连接; 用于使流体进入空间以使套筒膨胀的开口。
    • 6. 发明公开
    • A DOWNHOLE TOOL
    • 井下工具
    • EP3042037A1
    • 2016-07-13
    • EP14759151.5
    • 2014-09-03
    • Welltec A/S
    • ANDERSEN, Tomas SuneTHOMSEN, Brian Engelbricht
    • E21B47/12E21B47/14E21B47/18
    • E21B47/12E21B47/14E21B47/18
    • The present invention relates to a downhole tool (10) to be submerged into a well fluid from a top of a well, comprising a first tool section (21), a tool housing (3) having an inner face (4), a downhole communication module (1) for communicating through a well fluid in a downhole well to operate the downhole tool, comprising a piezoelectric transceiver (5) having a first face (6) and a second face (7) and being arranged in the tool housing, wherein an element (8) is arranged between the piezoelectric transceiver and the tool housing, and the element is arranged in abutment with the first face of the piezoelectric transceiver and the inner face of the housing, so that the tool housing acts as a transducer when the piezoelectric transceiver is activated and enlarges in a radial direction of the tool housing, forcing the tool housing outwards and sending a signal through the well fluid. The present invention also relates to a downhole system and a communication method.
    • 本发明涉及一种井下工具(10),其从井的顶部浸没在井流体中,包括第一工具部分(21),具有内表面(4)的工具壳体(3),井下 通信模块(1),用于通过井下井中的井流体进行通信以操作井下工具,包括具有第一面(6)和第二面(7)并布置在工具壳体中的压电收发器(5) 其中元件(8)布置在压电收发器和工具壳体之间,并且元件布置成与压电收发器的第一面和壳体的内面邻接,使得工具壳体在充当换能器时用作换能器 压电收发器被激活并且在工具壳体的径向方向上扩大,迫使工具壳体向外并且通过井流体发送信号。 本发明还涉及一种井下系统和通信方法。
    • 9. 发明公开
    • WIRELINE EXPANSION TOOL
    • EP4245959A1
    • 2023-09-20
    • EP22162467.9
    • 2022-03-16
    • Welltec A/S
    • ANDERSEN, Tomas Sune
    • E21B23/01
    • The present invention relates to a wireline expansion tool for setting of a completion tubular component such as a straddle, a liner, a patch or a liner hanger, the wireline expansion tool having an axial extension and comprising an electric motor connectable with and powered through a wireline, an axial force generator, a radial expansion tool section, and the completion tubular component arranged at least partly around at least part of the radial expansion tool section for expanding at least part of the completion tubular component, wherein the radial expansion tool section comprises a first element moving along the axial extension and a support structure connected with the first element for moving the support structure at least partly radially outwards for expanding at least part of the completion tubular component. The invention also relates to a downhole tool string comprising the wireline expansion tool and a driving unit, such as a downhole tractor, for propelling the wireline expansion tool forward in the well.