System and method for sensing using diamond based microelectrodes
    1.
    发明授权
    System and method for sensing using diamond based microelectrodes 有权
    用于金刚石微电极感测的系统和方法

    公开(公告)号:US07407566B2

    公开(公告)日:2008-08-05

    申请号:US10638610

    申请日:2003-08-11

    IPC分类号: G01N27/403

    CPC分类号: G01N27/403 E21B49/082

    摘要: A method and system is disclosed for monitoring one or more characteristics associated with a fluid. An insulating layer comprising non-conducting diamond is positioned within a housing and has a surface exposed directly or indirectly to the fluid. A plurality of microelectrodes made of electrically conducting diamond each have a surface exposed directly or indirectly to the fluid. An electrical circuit in electrical communication with each of the microelectrodes is adapted to convert electrical signals from the microelectrodes into at least one signal associated with a characteristic being monitored. The sensing system is well suited to hydrocarbon wellbore related applications, but can also be used in other applications.

    摘要翻译: 公开了用于监测与流体相关联的一个或多个特性的方法和系统。 包括非导电金刚石的绝缘层定位在壳体内并且具有直接或间接暴露于流体的表面。 由导电金刚石制成的多个微电极具有直接或间接暴露于流体的表面。 与每个微电极电连通的电路适于将来自微电极的电信号转换为与被监测的特性相关联的至少一个信号。 传感系统非常适用于烃井相关应用,但也可用于其他应用。

    System and method for sensing using diamond based microelectrodes
    2.
    发明授权
    System and method for sensing using diamond based microelectrodes 有权
    用于金刚石微电极感测的系统和方法

    公开(公告)号:US08241474B2

    公开(公告)日:2012-08-14

    申请号:US12163273

    申请日:2008-06-27

    IPC分类号: G01N27/403

    CPC分类号: G01N27/403 E21B49/082

    摘要: A method and system is disclosed for monitoring one or more characteristics associated with a fluid. An insulating layer comprising non-conducting diamond is positioned within a housing and has a surface exposed directly or indirectly to the fluid. A plurality of microelectrodes made of electrically conducting diamond each have a surface exposed directly or indirectly to the fluid. An electrical circuit in electrical communication with each of the microelectrodes is adapted to convert electrical signals from the microelectrodes into at least one signal associated with a characteristic being monitored. The sensing system is well suited to hydrocarbon wellbore related applications, but can also be used in other applications.

    摘要翻译: 公开了用于监测与流体相关联的一个或多个特性的方法和系统。 包括非导电金刚石的绝缘层定位在壳体内并且具有直接或间接暴露于流体的表面。 由导电金刚石制成的多个微电极具有直接或间接暴露于流体的表面。 与每个微电极电连通的电路适于将来自微电极的电信号转换为与被监测的特性相关联的至少一个信号。 传感系统非常适用于烃井相关应用,但也可用于其他应用。

    System and method for sensing using diamond based microelectrodes

    公开(公告)号:US20080257730A1

    公开(公告)日:2008-10-23

    申请号:US12163273

    申请日:2008-06-27

    IPC分类号: G01N27/26

    CPC分类号: G01N27/403 E21B49/082

    摘要: A method and system is disclosed for monitoring one or more characteristics associated with a fluid. An insulating layer comprising non-conducting diamond is positioned within a housing and has a surface exposed directly or indirectly to the fluid. A plurality of microelectrodes made of electrically conducting diamond each have a surface exposed directly or indirectly to the fluid. An electrical circuit in electrical communication with each of the microelectrodes is adapted to convert electrical signals from the microelectrodes into at least one signal associated with a characteristic being monitored. The sensing system is well suited to hydrocarbon wellbore related applications, but can also be used in other applications.

    Measurement of hydrogen sulphide and thiols in fluids
    6.
    发明授权
    Measurement of hydrogen sulphide and thiols in fluids 有权
    测量流体中的硫化氢和硫醇

    公开(公告)号:US08268146B2

    公开(公告)日:2012-09-18

    申请号:US12797148

    申请日:2010-06-09

    摘要: A wellbore tool has an electrochemical sensor for measuring the amount of hydrogen sulphide or thiols in a fluid downhole in a wellbore. The sensor comprises a temperature- and pressure-resistant housing containing a flow path for the fluids. The fluids flow over one side of a gas permeable membrane the other side of the membrane being exposed to a chamber containing at least two electrodes and containing a reaction solution which together with the hydrogen sulphide or thiols create a redox reaction resulting in an electrical current dependent upon the amount of hydrogen sulphide or thiols in the fluid. Measurement is made by passing formation fluid along the flow path and repeatedly applying varying potential to one electrode and measuring the peak current flowing between that electrode and a second electrode.

    摘要翻译: 井眼工具具有用于测量井眼中井下液体中硫化氢或硫醇的量的电化学传感器。 传感器包括耐温和耐压壳体,其容纳流体的流动路径。 流体在气体可渗透膜的一侧流动,膜的另一侧暴露于含有至少两个电极的室中,并且含有与硫化氢或硫醇一起产生氧化还原反应的反应溶液,导致电流依赖 在流体中的硫化氢或硫醇的量。 通过使流体流动沿流动路径并且重复地向一个电极施加变化的电位并测量在该电极和第二电极之间流动的峰值电流来进行测量。

    Electro-chemical sensor
    8.
    发明授权
    Electro-chemical sensor 失效
    电化学传感器

    公开(公告)号:US08613843B2

    公开(公告)日:2013-12-24

    申请号:US11628823

    申请日:2005-06-03

    IPC分类号: G01N27/407

    CPC分类号: G01N33/0047 E21B49/10

    摘要: An electro-chemical sensor for methane is described having a catalyst to react methane or other low molecular weight hydrocarbons and a detector to detect the turnover or reaction rate and using such information to determine the concentration of the methane or other low molecular weight species. The sensor is preferably used for measurements in a wellbore.

    摘要翻译: 描述了一种用于甲烷的电化学传感器,其具有用于反应甲烷或其它低分子量烃的催化剂和检测器以检测周转或反应速率,并使用这些信息来确定甲烷或其它低分子量物质的浓度。 该传感器优选用于井眼中的测量。