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    SYSTEM AND METHOD FOR REGULATING AN ELECTROMAGNETIC TELEMETRY SIGNAL SENT FROM DOWNHOLE TO SURFACE
    2.
    发明申请
    SYSTEM AND METHOD FOR REGULATING AN ELECTROMAGNETIC TELEMETRY SIGNAL SENT FROM DOWNHOLE TO SURFACE 审中-公开
    用于调节从卧室到表面的电磁遥测信号的系统和方法

    公开(公告)号：WO2014134727A1

    公开(公告)日：2014-09-12

    申请号：PCT/CA2014/050172

    申请日：2014-03-05

    Applicant: EVOLUTION ENGINEERING INC.

    Inventor： LIU, Jili ,  SWITZER, David, A. ,  WANG, Jinhua ,  LOGAN, Aaron, W.

    IPC: H04B7/005 ,  E21B47/13

    CPC classification number: E21B47/122 ,  E21B47/12 ,  E21B47/18 ,  G01V11/002 ,  H04W52/367

    Abstract: A method for regulating an electromagnetic ("EM") telemetry signal sent from downhole to surface includes determining a value of a controlled parameter of the EM telemetry signal, comparing the value of the controlled parameter to a configuration value, and adjusting the value of the controlled parameter in a first direction towards the configuration value while monitoring a feedback parameter of the EM telemetry signal when the value of the controlled parameter and the configuration value differ. The controlled parameter is one of transmission voltage and transmission current, and the feedback parameter is the other of transmission voltage and transmission current. The value of the controlled parameter ceases to be adjusted in the first direction upon the earlier of either of the following occurring: the value of the controlled parameter substantially equals the configuration value, a value of the feedback parameter meets a feedback parameter cutoff threshold, and a product of the controlled and feedback parameters meets a power cutoff threshold.

    Abstract translation: 一种用于调节从井下到地面发射的电磁（“EM”）遥测信号的方法包括确定EM遥测信号的受控参数的值，将受控参数的值与配置值进行比较，并调整 在控制参数的值和配置值不同的同时监视EM遥测信号的反馈参数，控制参数朝向配置值的第一方向。 受控参数是传输电压和传输电流之一，反馈参数是传输电压和传输电流中的另一个。 受控参数的值在以下任一情况之前的第一方向上不再被调整：受控参数的值基本上等于配置值，反馈参数的值满足反馈参数截止阈值，以及 受控和反馈参数的乘积满足停电阈值。

    SYSTEM AND METHOD FOR MANAGING BATTERIES FOR USE IN A DOWNHOLE DRILLING APPLICATION
    3.
    发明申请
    SYSTEM AND METHOD FOR MANAGING BATTERIES FOR USE IN A DOWNHOLE DRILLING APPLICATION 审中-公开
    用于管理用于井下钻孔应用的电池的系统和方法

    公开(公告)号：WO2014131126A1

    公开(公告)日：2014-09-04

    申请号：PCT/CA2014/050143

    申请日：2014-02-27

    Applicant: EVOLUTION ENGINEERING INC.

    Inventor： LIU, Jili ,  PAN, Xia ,  SWITZER, David A. ,  LOGAN, Aaron W.

    IPC: H02J7/00 ,  E21B41/00 ,  E21B47/12 ,  H02J13/00 ,  H04B7/005

    CPC classification number: E21B41/00 ,  E21B41/0085 ,  E21B47/12 ,  E21B47/122 ,  H02J7/00 ,  H02J7/0063 ,  H02J13/00 ,  H02J13/0003 ,  H02J2007/0067

    Abstract: The present disclosure is directed at methods, systems, and techniques for managing batteries for use in a downhole drilling application. The system includes a power bus, pairs of battery terminals for connecting to batteries, switching circuitry that connects and disconnects the batteries to the power bus, data collection circuitry that obtains battery parameters obtained during system operation, and a controller that controls the switching circuitry and receives the battery parameters. A control line connects the controller to the switching circuitry and a data line connects the controller to the data collection circuitry, with the control and data lines being distinct such that control and data signals are not multiplexed with each other.

    Abstract translation: 本公开涉及用于管理在井下钻井应用中使用的电池的方法，系统和技术。 该系统包括电源总线，用于连接到电池的成对电池端子，将电池连接到电源总线的开关电路，获得在系统操作期间获得的电池参数的数据采集电路以及控制开关电路和 接收电池参数。 控制线将控制器连接到开关电路，并且数据线将控制器连接到数据采集电路，控制和数据线是不同的，使得控制和数据信号彼此不被多路复用。

    DOWNHOLE TELEMETRY SIGNAL MODULATION USING PRESSURE PULSES OF MULTIPLE PULSE HEIGHTS
    4.
    发明申请
    DOWNHOLE TELEMETRY SIGNAL MODULATION USING PRESSURE PULSES OF MULTIPLE PULSE HEIGHTS 审中-公开
    使用多个脉冲高度的压力脉冲进行井下电信号调制

    公开(公告)号：WO2014094150A1

    公开(公告)日：2014-06-26

    申请号：PCT/CA2013/050966

    申请日：2013-12-13

    Applicant: EVOLUTION ENGINEERING INC.

    Inventor： LIU, Jili ,  XU, Mingdong ,  SWITZER, David, A. ,  LOGAN, Aaron, W.

    IPC: E21B47/18 ,  H04B11/00 ,  H04L27/04

    CPC classification number: E21B47/187 ,  H04B11/00 ,  H04B13/02 ,  H04L27/04 ,  H04L27/34

    Abstract: A method for modulating a downhole telemetry signal uses a fluid pressure pulse generator that generates pressure pulses of multiple pulse heights in a drilling fluid. The method comprises: converting measurement data into a bitstream comprising symbols of a selected symbol set; encoding the bitstream into a pressure pulse telemetry signal using a modulation technique that includes amplitude shift keying, wherein each symbol of the selected symbol set is assigned a pressure pulse having a unique amplitude; and generating pressure pulses in the drilling fluid corresponding to the telemetry signal. Alternatively, the method can comprise a modulation technique that includes amplitude shift keying and phase shift keying and wherein each symbol of the selected symbol set is assigned a pressure pulse having a unique combination of amplitude and phase.

    Abstract translation: 用于调制井下遥测信号的方法使用在钻井液中产生多个脉冲高度的压力脉冲的流体压力脉冲发生器。 该方法包括：将测量数据转换成包含所选符号组的符号的比特流; 使用包括幅移键控的调制技术将比特流编码为压力脉冲遥测信号，其中所选择的符号组的每个符号被分配具有唯一振幅的压力脉冲; 并产生对应于遥测信号的钻井液中的压力脉冲。 或者，该方法可以包括调制技术，其包括幅移键控和相移键控，并且其中所选符号组的每个符号被分配具有振幅和相位的唯一组合的压力脉冲。

    ELECTROMAGNETIC COMMUNICATIONS SYSTEM AND METHOD FOR A DRILLING OPERATION
    5.
    发明申请
    ELECTROMAGNETIC COMMUNICATIONS SYSTEM AND METHOD FOR A DRILLING OPERATION 审中-公开
    用于钻孔操作的电磁通信系统和方法

    公开(公告)号：WO2014153657A1

    公开(公告)日：2014-10-02

    申请号：PCT/CA2014/050305

    申请日：2014-03-24

    Applicant: EVOLUTION ENGINEERING INC.

    Inventor： SWITZER, David ,  LIU, Jili ,  XU, Mingdong ,  KAZEMI, Mojtaba

    IPC: E21B47/13 ,  H04W4/00

    CPC classification number: E21B47/122

    Abstract: A wireless communications system for a downhole drilling operation comprises surface communications equipment and a downhole telemetry tool. The surface communications equipment comprises a surface EM communications module with an EM downlink transmitter configured to transmit an EM downlink transmission at a frequency between 0.01 Hz and 0.1 Hz. The downhole telemetry tool is mountable to a drill string and has a downhole electromagnetic (EM) communications unit with an EM downlink receiver configured to receive the EM downlink transmission. The downhole EM communications unit can further comprise an EM uplink transmitter configured to transmit an EM uplink transmission at a frequency greater than 0.5 Hz, in which case the surface EM communications module further comprises an EM uplink receiver configured to receive the EM uplink transmission. More particularly, the downhole EM uplink transmitter can be configured to transmit the EM uplink transmission at a frequency that is at least ten times higher than the EM downlink transmission frequency.

    Abstract translation: 用于井下钻井操作的无线通信系统包括地面通信设备和井下遥测工具。 表面通信设备包括具有EM下行链路发射机的表面EM通信模块，其被配置为以0.01Hz和0.1Hz之间的频率发送EM下行链路传输。 井下遥测工具可安装到钻柱，并且具有井下电磁（EM）通信单元，其具有被配置为接收EM下行链路传输的EM下行链路接收器。 井下EM通信单元还可以包括被配置为以大于0.5Hz的频率发送EM上行链路传输的EM上行链路发射机，在这种情况下，表面EM通信模块还包括被配置为接收EM上行链路传输的EM上行链路接收机。 更具体地，井下EM上行链路发射机可以被配置为以比EM下行链路传输频率高至少十倍的频率来发射EM上行链路传输。

    FLUID PRESSURE PULSE GENERATING APPARATUS AND METHOD OF USING SAME
    6.
    发明申请
    FLUID PRESSURE PULSE GENERATING APPARATUS AND METHOD OF USING SAME 审中-公开
    流体压力脉冲发生装置及其使用方法

    公开(公告)号：WO2014131125A1

    公开(公告)日：2014-09-04

    申请号：PCT/CA2014/050138

    申请日：2014-02-27

    Applicant: EVOLUTION ENGINEERING INC.

    Inventor： LIU, Jili ,  SWITZER, David A. ,  LOGAN, Aaron W.

    IPC: E21B47/18 ,  F15B5/00

    CPC classification number: E21B47/18 ,  E21B47/00 ,  E21B47/187 ,  F15B21/125

    Abstract: A fluid pressure pulse generating apparatus including a pulser assembly and a fluid pressure pulse generator and methods of using the fluid pressure pulse generating apparatus. The pulser assembly comprises a motor, a sensor for detecting rotation of the motor, a driveshaft rotationally coupled to the motor, and processing and motor control equipment communicative with the motor and the sensor. The fluid pressure pulse generator is coupled with the driveshaft. The sensor provides an indication of the amount of rotation of the motor and this information can be processed by the processing and motor control equipment to determine the position of the driveshaft and to control rotation of the driveshaft based on a predetermined rotational relationship between the driveshaft and the motor.

    Abstract translation: 一种液压脉冲发生装置，包括脉冲发生器组件和流体压力脉冲发生器以及使用该流体压力脉冲发生装置的方法。 脉冲发生器组件包括马达，用于检测马达的旋转的传感器，与马达旋转耦合的驱动轴，以及与马达和传感器通信的处理和马达控制设备。 流体压力脉冲发生器与驱动轴相连。 传感器提供电动机旋转量的指示，该信息可由处理和电机控制设备处理，以确定驱动轴的位置，并根据驱动轴与驱动轴之间的预定旋转关系来控制驱动轴的旋转 电机。

    BACK UP DIRECTIONAL AND INCLINATION SENSORS AND METHOD OF OPERATING SAME
    8.
    发明申请
    BACK UP DIRECTIONAL AND INCLINATION SENSORS AND METHOD OF OPERATING SAME 审中-公开
    备份方向和内置传感器及其操作方法

    公开(公告)号：WO2014085935A1

    公开(公告)日：2014-06-12

    申请号：PCT/CA2013/050942

    申请日：2013-12-06

    Applicant: EVOLUTION ENGINEERING INC.

    Inventor： SWITZER, David A. ,  LOGAN, Aaron W. ,  LIU, Jili

    IPC: E21B47/024 ,  E21B44/00 ,  E21B47/022 ,  E21B7/04

    CPC classification number: E21B47/022 ,  E21B47/011 ,  E21B47/024 ,  E21B47/12 ,  G01P15/00 ,  G01P15/18

    Abstract: The embodiments described herein generally relate to a method and apparatus for providing a back up system of Directional and Inclination (D&I) information to be gathered and transmitted in addition to primary D&I sensors currently employed in industry. A downhole probe assembly including primary sensors, back up sensors and a controller is disclosed. The primary sensors comprise primary accelerometers and primary magnetometers configured to gather information relating to each of orthogonal axes X, Y and Z. The back up sensors comprise back up accelerometers configured to gather information relating to each of orthogonal axes X, Y and Z, the back up accelerometers being solid state accelerometers. The controller is in electrical communication with the primary sensors and the back up sensors. The controller is configured to receive and process information from the primary sensors and the back up sensors so that information from the back up accelerometers can be used when one or more of the primary accelerometers fail, which may allow drilling operations to continue despite such failure.

    Abstract translation: 本文描述的实施例通常涉及用于提供除了工业中当前使用的主要D＆I传感器之外要收集和发送的定向和倾斜（D＆I）信息的备份系统的方法和装置。 公开了一种包括主传感器，备用传感器和控制器的井下探头组件。 主传感器包括主加速度计和主磁力计，其被配置为收集与正交轴X，Y和Z中的每一个相关的信息。备用传感器包括配置为收集与正交轴X，Y和Z中的每一个相关的信息的备份加速度计， 备份加速度计是固态加速度计。 控制器与主传感器和备用传感器电气通信。 控制器被配置为从主传感器和备用传感器接收和处理信息，使得当一个或多个主加速度计失效时可以使用来自后备加速度计的信息，这可能允许钻井操作继续，尽管这样的故障。

    FLUID PRESSURE PULSE GENERATOR AND METHOD OF USING SAME
    9.
    发明申请
    FLUID PRESSURE PULSE GENERATOR AND METHOD OF USING SAME 审中-公开
    流体压力脉冲发生器及其使用方法

    公开(公告)号：WO2014071514A1

    公开(公告)日：2014-05-15

    申请号：PCT/CA2013/050843

    申请日：2013-11-06

    Applicant: EVOLUTION ENGINEERING INC.

    Inventor： LOGAN, Aaron W. ,  SWITZER, David A. ,  LOGAN, Justin C. ,  LIU, Jili

    IPC: E21B47/18 ,  E21B44/00 ,  F16K5/04 ,  F16K5/12

    CPC classification number: E21B47/18 ,  E21B10/34 ,  E21B34/06

    Abstract: A fluid pressure pulse generator comprising a stator and rotor that can be used in measurement while drilling using mud pulse or pressure pulse telemetry is disclosed. The stator comprises a stator body with a circular opening therethrough and the rotor comprises a circular rotor body rotatably received in the circular opening of the stator body. One of the stator body or the rotor body comprises one or more than one fluid opening for flow of fluid therethrough and the other of the stator body or the rotor body comprises one or more than one full flow chamber. The rotor is rotatable between a full flow configuration whereby the full flow chamber and the fluid opening align so that fluid flows from the full flow chamber through the fluid opening, and a reduced flow configuration whereby the full flow chamber and the fluid opening are not aligned. The flow of fluid through the fluid opening in the reduced flow configuration is less than the flow of fluid through the fluid opening in the full flow configuration thereby generating a fluid pressure pulse.

    Abstract translation: 公开了一种包括定子和转子的流体压力脉冲发生器，其可以在使用泥浆脉冲或压力脉冲遥测进行钻孔时用于测量。 定子包括具有贯穿其中的圆形开口的定子体，转子包括可旋转地容纳在定子体的圆形开口中的圆形转子体。 定子体或转子体中的一个包括用于流过其中的流体的一个或多个流体开口，并且定子体或转子体中的另一个包括一个或多于一个的全流动室。 转子可以在全流动构型之间旋转，由此全流动室和流体开口对准，使得流体从全流动室流过流体开口，并且减小流动构型，从而使全流动室和流体开口不对准 。 以减小的流动形式流过流体开口的流体流小于在全流动构型中通过流体开口的流体流动，从而产生流体压力脉冲。

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