Device and method for gas lock detection in an electrical submersible pump assembly
    1.
    发明授权
    Device and method for gas lock detection in an electrical submersible pump assembly 有权
    电潜泵组件中气锁检测的装置和方法

    公开(公告)号:US08141646B2

    公开(公告)日:2012-03-27

    申请号:US12486121

    申请日:2009-06-17

    IPC分类号: E21B43/00

    摘要: A device and method can detect, and also break, an occurrence of gas lock in an electrical submersible pump assembly in a well bore based upon surface or downhole data without the need for operator intervention. To detect an occurrence of gas lock, an instantaneous value is monitored using a sensor. Then a controller compares the instantaneous value to a threshold value over a predetermined duration to thereby detect the occurrence of gas lock in the electrical submersible pump assembly. Sensors can include, for example, a differential pressure gauge, a pressure gage located in a pump stage located toward the inlet, a fluid temperature sensor located toward the discharge, a free gas detector located near the pump discharge, an electrical resistivity gage, a flow meter located within surface production tubing, and a vibration sensor attached to a tubing string to measure a vibration signature.

    摘要翻译: 一种装置和方法可以基于表面或井下数据来检测并破坏井下电潜泵组件中气锁的发生,而不需要操作员干预。 为了检测气体锁定的发生,使用传感器来监视瞬时值。 然后,控制器在预定持续时间内将瞬时值与阈值进行比较,从而检测电潜泵组件中的气锁的发生。 传感器可以包括例如差压表,位于朝向入口的泵级中的压力表,位于排出口的流体温度传感器,位于泵排放附近的自由气体检测器,电阻率计, 位于表面生产管道内的流量计,以及连接到油管柱以测量振动特征的振动传感器。

    Device and Method For Gas Lock Detection In An Electrical Submersible Pump Assembly
    2.
    发明申请
    Device and Method For Gas Lock Detection In An Electrical Submersible Pump Assembly 有权
    电潜泵组件中气锁检测的装置和方法

    公开(公告)号:US20090250210A1

    公开(公告)日:2009-10-08

    申请号:US12486121

    申请日:2009-06-17

    摘要: A device and method can detect, and also break, an occurrence of gas lock in an electrical submersible pump assembly in a well bore based upon surface or downhole data without the need for operator intervention. To detect an occurrence of gas lock, an instantaneous value is monitored using a sensor. Then a controller compares the instantaneous value to a threshold value over a predetermined duration to thereby detect the occurrence of gas lock in the electrical submersible pump assembly. Sensors can include, for example, a differential pressure gauge, a pressure gage located in a pump stage located toward the inlet, a fluid temperature sensor located toward the discharge, a free gas detector located near the pump discharge, an electrical resistivity gage, a flow meter located within surface production tubing, and a vibration sensor attached to a tubing string to measure a vibration signature.

    摘要翻译: 一种装置和方法可以基于表面或井下数据来检测并破坏井下电潜泵组件中气锁的发生,而不需要操作员干预。 为了检测气体锁定的发生,使用传感器来监视瞬时值。 然后,控制器在预定持续时间内将瞬时值与阈值进行比较,从而检测电潜泵组件中的气锁的发生。 传感器可以包括例如差压表,位于朝向入口的泵级中的压力表,位于排出口的流体温度传感器,位于泵排放附近的自由气体检测器,电阻率计, 位于表面生产管道内的流量计,以及连接到油管柱以测量振动特征的振动传感器。

    Device, Computer Program Product and Computer-Implemented Method for Backspin Detection in an Electrical Submersible Pump Assembly
    3.
    发明申请
    Device, Computer Program Product and Computer-Implemented Method for Backspin Detection in an Electrical Submersible Pump Assembly 有权
    设备,计算机程序产品和计算机实现的电潜泵组件中反跳探测方法

    公开(公告)号:US20110051297A1

    公开(公告)日:2011-03-03

    申请号:US12869409

    申请日:2010-08-26

    IPC分类号: H02H7/097

    CPC分类号: E21B47/0007 H02P3/00

    摘要: A system for determining whether a motor in an electrical submersible pump is backspinning is described herein. The system comprises a sensor mounted in a well bore proximate to a ground surface, the sensor outputting a backspin signal; a communication link connected to the sensor, the communications link communicating the backspin signal; and a controller receiving the backspin signal from the communications link and processing the backspin signal to determine whether the motor is backspinning. Computer readable instructions associated with the system perform the steps of: monitoring the signal to determine whether the signal is above a threshold, the threshold for determining whether the signal is a noise signal or a backspin signal, and outputting the backspin signal; impeding operable AC power to the motor, responsive to the backspin signal; monitoring the backspin signal to determine whether the backspin signal is below the threshold; and returning AC power to the motor responsive to the determination that the backspin signal is below the threshold.

    摘要翻译: 这里描述了一种用于确定电动潜水泵中的电动机是否是回旋的系统。 该系统包括安装在靠近地面的井眼中的传感器,该传感器输出反旋转信号; 连接到所述传感器的通信链路,所述通信链路通信所述反向旋转信号; 以及控制器,从所述通信链路接收所述反向旋转信号,并处理所述反向旋转信号,以确定所述电动机是否回转。 与系统相关联的计算机可读指令执行以下步骤:监视信号以确定信号是否高于阈值,用于确定信号是噪声信号还是反旋信号的阈值,以及输出反旋信号; 响应于所述反转信号阻碍对所述电动机的可操作的交流电力; 监测反向旋转信号以确定反旋信号是否低于阈值; 并且响应于所述反旋转信号低于所述阈值的确定,将AC电力返回到所述电动机。

    Systems and methods for downhole power factor correction
    4.
    发明授权
    Systems and methods for downhole power factor correction 有权
    井下功率因数校正的系统和方法

    公开(公告)号:US08937448B2

    公开(公告)日:2015-01-20

    申请号:US13300900

    申请日:2011-11-21

    IPC分类号: G05F1/70 E21B43/12 H02P23/00

    摘要: Systems and methods for processing power provided to downhole electrical systems such as electric submersible pump motors to increase the power factor of the supplied power. In one embodiment, a system comprises a downhole motor and a power factor corrector. The motor may be coupled to drive an electric submersible pump. The power factor corrector is configured to receive input power, process the received input power using one or more capacitive electrical components and thereby impart a capacitive phase shift between the voltage and the current of the received input power. The processed output power is provided to the downhole motor, which consumes the processed output power with a power factor which is greater than it would have been in the absence of the correction.

    摘要翻译: 用于处理提供给井下电气系统的电力的系统和方法,例如电潜泵泵马达,以增加供电功率的因数。 在一个实施例中,系统包括井下电动机和功率因数校正器。 马达可以联接以驱动电潜泵。 功率因数校正器被配置为接收输入功率,使用一个或多个电容性电气部件处理所接收的输入功率,从而在所接收的输入功率的电压和电流之间施加电容相移。 处理的输出功率被提供给井下电动机,其以比在没有校正的情况下更大的功率因数来消耗处理的输出功率。

    PLANARIZATION OVER TOPOGRAPHY WITH MOLECULAR GLASS MATERIALS
    7.
    发明申请
    PLANARIZATION OVER TOPOGRAPHY WITH MOLECULAR GLASS MATERIALS 失效
    分子结构与分子玻璃材料的平面化

    公开(公告)号:US20110079579A1

    公开(公告)日:2011-04-07

    申请号:US12574171

    申请日:2009-10-06

    IPC分类号: B44C1/22 B29C39/12 C09D4/00

    CPC分类号: G03F7/0752 C09D7/63 G03F7/094

    摘要: Molecular glass based planarizing compositions for lithographic processing are disclosed. The processes generally include casting the planarizing composition onto a surface comprised of lithographic features, the planarizing composition comprising at least one molecular glass and at least one solvent; and heating the planarizing composition to a temperature greater than a glass transition temperature of the at least one molecular glass. Exemplary molecular glasses include polyhedral oligomeric silsesquioxane derivatives, calixarenes, cyclodextrin derivatives, and other non-polymeric large molecules.

    摘要翻译: 公开了用于光刻处理的基于分子玻璃的平面化组合物。 所述方法通常包括将平坦化组合物浇铸到由光刻特征组成的表面上,平坦化组合物包含至少一种分子玻璃和至少一种溶剂; 并且将所述平坦化组合物加热至大于所述至少一种分子玻璃的玻璃化转变温度的温度。 示例性分子玻璃包括多面体低聚倍半硅氧烷衍生物,杯芳烃,环糊精衍生物和其它非聚合大分子。

    Release layer for imprinted photocationic curable resins
    10.
    发明授权
    Release layer for imprinted photocationic curable resins 失效
    印版光固化树脂的剥离层

    公开(公告)号:US07749422B2

    公开(公告)日:2010-07-06

    申请号:US11694117

    申请日:2007-03-30

    IPC分类号: B29C35/08

    摘要: An imprint process comprising coating a selected surface of a micropatterned template with a release composition having a basic reactive moiety; wherein the template is transparent to UV radiation; imprinting the template onto a photocationically curable composition; curing the UV curable composition to form an imprinted composition, wherein the release composition having a basic reactive moiety is effective to locally inhibit curing of the composition at an interface between the template and the imprinted composition; and releasing the template from the imprinted composition.

    摘要翻译: 一种压印方法,包括用具有碱性反应性部分的释放组合物涂布微图案化模板的选定表面; 其中所述模板对UV辐射是透明的; 将模板印刷在光固化组合物上; 固化可UV固化组合物以形成印迹组合物,其中具有碱性反应性部分的释放组合物有效地局部抑制组合物在模板和印迹组合物之间的界面处的固化; 并从印迹组合物释放模板。