FLUID INJECTION DEVICE
    1.
    发明公开
    FLUID INJECTION DEVICE 有权
    液体喷射装置

    公开(公告)号:EP2630326A2

    公开(公告)日:2013-08-28

    申请号:EP11774096.9

    申请日:2011-10-19

    IPC分类号: E21B34/10 E21B37/06

    摘要: A fluid injection device (18) for controlling injection of fluid into an oil-carrying tube in an oil well includes an inlet (20) for receiving the fluid; an outlet (28) for supplying the fluid for injection into the oil-carrying tube; an inlet valve (22) in a fluid path between the inlet and the outlet; an actuator (24) for opening and closing the valve; and a connector (36) for coupling the inlet to a fluid supply tube (32) extending between the device and a source of the fluid above the ground. A method of controlling injection of fluid using such a device is also provided.

    GAS INJECTION CONTROL DEVICES AND METHODS OF OPERATION THEREOF
    2.
    发明公开
    GAS INJECTION CONTROL DEVICES AND METHODS OF OPERATION THEREOF 有权
    注气控制装置和操作方法

    公开(公告)号:EP2288787A2

    公开(公告)日:2011-03-02

    申请号:EP09757818.1

    申请日:2009-06-05

    IPC分类号: E21B43/12

    CPC分类号: E21B43/123

    摘要: Gas injection control devices are provided, particularly for deployment in a well-bore to control injection of a gas into a tube or pipe to lift a liquid up the tube, such as crude oil for example. A gas control device (50, 200) is described which comprises a housing (49, 206), and at least two control valve arrangements within the housing. Each arrangement has an inlet (76) for receiving gas from a pressurized supply, an outlet (80) for supplying pressurized gas for injection into the tube, an inlet valve (62) in a fluid path between the inlet and outlet, and an actuator (72) associated with the inlet valve. Each actuator is independently controllable to switch the respective inlet valve between its open and closed configurations. This allows the gas injection to be switched on and off, and facilitates control of the injection gas flow rate.

    ELECTROMAGNETIC ACTUATORS AND MONITORING THEREOF
    4.
    发明公开
    ELECTROMAGNETIC ACTUATORS AND MONITORING THEREOF 审中-公开
    电磁机构,它的监测

    公开(公告)号:EP2724121A1

    公开(公告)日:2014-04-30

    申请号:EP12740634.6

    申请日:2012-06-21

    发明人: LAMPRELL, Ian

    IPC分类号: G01D5/22 H01F7/18

    摘要: An assembly includes an electromagnetic actuator (80) and a voltage response arrangement (26) to enable the position of the armature (1) within the actuator to be monitored. The actuator includes two coils (4) joined together in series, the armature being switchable between at least two magnetically latched stable rest positions by passing a current pulse through the coils, and an output contact (82) electrically coupled to the junction (24) between the coils to facilitate monitoring of the voltage at the junction. The voltage response arrangement (26) is electrically coupled to the output contact (82) so as to provide an output signal giving an indication of the position of the armature (1) in response to the voltage generated on the output contact when a current pulse is passed through the coils (4). A method of monitoring the armature position is also provided.

    FLUID INJECTION DEVICE
    5.
    发明公开
    FLUID INJECTION DEVICE 有权
    流体注射装置

    公开(公告)号:EP2630328A2

    公开(公告)日:2013-08-28

    申请号:EP11774097.7

    申请日:2011-10-19

    发明人: WATSON, Peter

    IPC分类号: E21B43/12 E21B43/14 E21B43/20

    摘要: A fluid injection device (38) for deployment in a well-bore to control injection of fluid into an oil reservoir, wherein the well-bore has an outer pipe (16) and an inner tube (14) which extends within the outer pipe and is connected at one end to a pressurized fluid supply above the ground. The device includes a control valve arrangement comprising: an inlet (42) for receiving the fluid from the inner tube; an outlet (56) for outputting the fluid outside the inner tube; an inlet valve (44) in a fluid path between the inlet and the outlet; and an actuator (50) associated with the inlet valve which is controllable to switch the inlet valve between its open and closed configurations, such that when the inlet valve is open, the fluid flows from the inner tube, via the inlet, fluid path and outlet to outside the inner tube. A method of controlling injection of fluid into an oil reservoir from a well-bore using such a device is also provided.

    摘要翻译: 一种用于在井眼中展开的流体注入装置(38),用于控制流体注入油藏,其中井筒具有外管(16)和在外管内延伸的内管(14),以及 在一端连接到地面上的加压流体供应。 该装置包括控制阀装置,该控制阀装置包括:用于接收来自内管的流体的入口(42) 用于将流体输出到内管外的出口(56) 在入口和出口之间的流体路径中的入口阀(44) 和与入口阀相关联的致动器(50),所述致动器可被控制以将入口阀在其打开和关闭构型之间切换,使得当入口阀打开时,流体从内管流经入口,流体路径和 出口到内管外。 还提供了一种使用这种装置来控制从井筒注入流体进入油藏的方法。