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    Broadband vibrational energy harvesting
    1.
    发明授权
    Broadband vibrational energy harvesting 有权
    宽带振动能量收集

    公开(公告)号：US08866317B2

    公开(公告)日：2014-10-21

    申请号：US13742164

    申请日：2013-01-15

    Applicant: Schlumberger Technology Corporation

    Inventor： Murat Ocalan

    IPC: F02B63/04

    CPC classification number: H02P9/006 ,  F03G7/08 ,  F16F15/005 ,  H02K35/00 ,  H02N2/181

    Abstract: A system that converts environmental vibrational energy into electrical energy includes a transducer that undergoes oscillating movement in response to the vibrational energy in order to produce an oscillating electrical signal. Power electronics process the oscillating electrical signal. A control system (including at least one control element of the power electronics, at least one sensor and control electronics) carries out a control scheme that dynamically varies the dampening of the oscillating movement of the transducer over time. The control scheme is based upon a predetermined parametric relation involving a plurality of variables derived from the properties measured by the at least one sensor. In several embodiments, the plurality of variables includes a first variable representing excitation frequency of the transducer. In another embodiment, the predetermined parametric relation represents relative phase between two variables derived from the properties measured by the at least one sensor.

    Abstract translation: 将环境振动能转换为电能的系统包括响应于振动能量经历振荡运动以产生振荡电信号的换能器。 电力电子处理振荡电信号。 控制系统（包括电力电子设备的至少一个控制元件，至少一个传感器和控制电子设备）执行控制方案，其随时间动态地改变换能器的振荡运动的衰减。 控制方案基于涉及从由至少一个传感器测量的性质导出的多个变量的预定参数关系。 在多个实施例中，多个变量包括表示换能器的激励频率的第一变量。 在另一个实施例中，预定参数关系表示从由至少一个传感器测量的性质导出的两个变量之间的相对相位。

    REDUCING AXIAL WAVE REFLECTIONS AND IDENTIFYING STICKING IN WIRELINE CABLES
    4.
    发明申请
    REDUCING AXIAL WAVE REFLECTIONS AND IDENTIFYING STICKING IN WIRELINE CABLES 审中-公开
    减少轴向波反射和识别线缆

    公开(公告)号：US20150308256A1

    公开(公告)日：2015-10-29

    申请号：US14796145

    申请日：2015-07-10

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Murat Ocalan ,  Jahir Pabon ,  Daniel Palmer ,  Hitoshi Tashiro

    IPC: E21B47/00 ,  E21B31/00

    CPC classification number: E21B47/00 ,  E21B19/08 ,  E21B23/14 ,  E21B31/005 ,  E21B47/0006

    Abstract: Techniques are described for axial vibration control of wireline tools and cables during logging operations. In undesirable cases the axial vibrations may lead to or exasperate the stick-slip problems of the logging tool. Control systems and strategies to minimize vibrations are described. Techniques are also described for identifying and inhibiting the sticking of the cable. A described system includes a surface actuator and a sensor. The actuator generates an axial wave on the wireline cable which travels down the cable. If there is sticking of the cable, a reflection can also occur at the location of sticking. This shift in the transmission of the wave on the wireline cable is used to identify the onset and/or presence of sticking.

    Abstract translation: 描述了在测井操作期间用于电缆工具和电缆的轴向振动控制的技术。 在不希望的情况下，轴向振动可能导致或者使用测井工具的粘滑问题。 描述了使振动最小化的控制系统和策略。 还描述了用于识别和抑制电缆粘附的技术。 所描述的系统包括表面致动器和传感器。 执行器在电缆上沿导线产生轴向波，该电缆沿着电缆行进。 如果有电缆的粘附，也可能会在粘贴位置发生反射。 使用有线电缆上的波的传输的这种变化来识别粘着的发生和/或存在。

    Active stabilization
    6.
    发明授权
    Active stabilization 审中-公开

    公开(公告)号：US10669788B2

    公开(公告)日：2020-06-02

    申请号：US14594298

    申请日：2015-01-12

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Murat Ocalan ,  Jahir Pabon ,  Nathaniel Wicks

    IPC: E21B17/10 ,  F16D13/40 ,  E21B7/06 ,  E21B41/00 ,  E21B47/024 ,  F16H1/28 ,  E21B44/04 ,  G05B19/18

    Abstract: Active stabilization is provided. In one possible implementation a drilling tool associated with a drill bit includes one or more rotation alteration devices configured to alter a rotational radius of a drill string. The drilling tool also includes at least one active stabilizer rotatively attached to the drilling tool, as well as a variable brake configured to control a rotation of the at least one active stabilizer relative to the drilling tool. In another possible implementation, a drilling tool includes an active stabilizer rotatably coupled to the drilling tool, as well as an actuation system configured to control a torque placed on the active stabilizer through contact with a wall of a borehole.

    Kinetic energy storage for wellbore completions
    7.
    发明授权
    Kinetic energy storage for wellbore completions 有权

    公开(公告)号：US10119370B2

    公开(公告)日：2018-11-06

    申请号：US14726741

    申请日：2015-06-01

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Murat Ocalan

    IPC: E21B34/06 ,  E21B41/00

    Abstract: A downhole kinetic energy storage system for wellbore completions is configured for installation downhole for extended periods of time, such as 10 year or more. The kinetic energy storage system receives power from a low power source, which can be due to a “power bottleneck” to the downhole location such as inductive coupling, optical fiber, downhole energy harvesting, and/or subsea wellhead configurations. The system stores the available low-power as rotational energy in a flywheel and then when demanded converts the rotational energy into electrical energy at a temporary power level exceeding the low power source. The temporary high power energy is used for wellbore completion applications such as actuating a flow control or other downhole valve.

    KINETIC ENERGY STORAGE FOR WELLBORE COMPLETIONS
    9.
    发明申请
    KINETIC ENERGY STORAGE FOR WELLBORE COMPLETIONS 审中-公开
    用于井眼完成的动力能量储存

    公开(公告)号：US20160348477A1

    公开(公告)日：2016-12-01

    申请号：US14726741

    申请日：2015-06-01

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Murat Ocalan

    IPC: E21B41/00 ,  E21B34/06

    CPC classification number: E21B41/0085 ,  E21B34/066

    Abstract: A downhole kinetic energy storage system for wellbore completions is configured for installation downhole for extended periods of time, such as 10 year or more. The kinetic energy storage system receives power from a low power source, which can be due to a “power bottleneck” to the downhole location such as inductive coupling, optical fiber, downhole energy harvesting, and/or subsea wellhead configurations. The system stores the available low-power as rotational energy in a flywheel and then when demanded converts the rotational energy into electrical energy at a temporary power level exceeding the low power source. The temporary high power energy is used for wellbore completion applications such as actuating a flow control or other downhole valve.

    Abstract translation: 用于井眼完井的井下动能储存系统配置为长时间安装，如10年以上。 动能储存系统从低功率源接收功率，这可能是由于井下位置的“电力瓶颈”，例如电感耦合，光纤，井下能量收集和/或海底井口配置。 该系统将可用的低功率作为旋转能量存储在飞轮中，然后当需要时将旋转能量转换成超过低功率源的临时功率电平的电能。 临时高功率能量用于井筒完井应用，例如致动流量控制或其他井下阀。

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