公开(公告)号：EP2390675A3

公开(公告)日：2017-03-22

申请号：EP11159515.3

申请日：2011-03-24

申请人： GE Oil & Gas UK Limited

发明人： Stokes, Martin

IPC分类号： G01R31/11

CPC分类号： G01R31/11

摘要： A method of determining the location of a fault in a cable at an underwater fluid extraction facility, comprises the steps of:
a) providing a time domain reflectometry unit at the facility, the unit being connected to at least one wire within the cable;
b) causing the unit to transmit a current pulse to the wire;
c) detecting a reflected pulse received at the unit;
d) determining the time duration between the pulse transmission and the reflected pulse reception and using the duration to calculate a distance between the fault and the unit; and
e) determining the location of a fault on the wire using the calculated distance.

公开(公告)号：EP2489826B1

公开(公告)日：2018-06-06

申请号：EP11154975.4

申请日：2011-02-18

申请人： GE Oil & Gas UK Limited

发明人： Davis, Julian ,  Stokes, Martin

IPC分类号： E21B34/06 ,  F16K37/00 ,  H01F7/18

CPC分类号： E21B33/0355 ,  E21B34/066 ,  E21B41/0007 ,  F16K37/0083 ,  G01R31/06 ,  H01F7/1844 ,  H01F2007/1888

摘要： There is disclosed a method of testing a solenoid (1) of a directional control valve in a subsea hydrocarbon production system, the solenoid having a coil and an armature for operating the valve. The coil is energised by a drive voltage across it, the method comprising removing or reducing the drive voltage and sensing current through the coil to produce an indication (10) of movement of the armature.

公开(公告)号：EP2605627B1

公开(公告)日：2017-06-28

申请号：EP11193976.5

申请日：2011-12-16

申请人： GE Oil & Gas UK Limited

发明人： Stokes, Martin

IPC分类号： H05K7/20

CPC分类号： F28F9/007 ,  H05K7/20 ,  H05K7/20545 ,  Y10T29/49945

摘要： A heat sink mounting apparatus (10) for mounting a heat sink to a wall of a device housing, comprising: a heat sink (12); and a device housing (14), the housing having a slot (16) in a wall (18) of the housing for receiving a heat sink, wherein the heat sink and the housing are adapted such that the heat sink can be secured within the slot with an interference fit.

摘要翻译： 1。一种用于将散热器安装到设备外壳的壁上的散热器安装设备（10），包括：散热器（12）;散热器 和设备外壳（14），所述外壳在所述外壳的壁（18）中具有用于接收散热器的狭槽（16），其中所述散热器和所述外壳适于使得所述散热器可以固定在所述 插槽与干涉配合。