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    DOWNHOLE ELECTROMAGNETIC AND MUD PULSE TELEMETRY APPARATUS
    11.
    发明申请
    DOWNHOLE ELECTROMAGNETIC AND MUD PULSE TELEMETRY APPARATUS 有权
    卧式电磁和泥浆脉冲电视装置

    公开(公告)号：US20160341034A1

    公开(公告)日：2016-11-24

    申请号：US15230220

    申请日：2016-08-05

    Applicant: EVOLUTION ENGINEERING INC.

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

    IPC: E21B47/18 ,  E21B47/12

    CPC classification number: E21B47/18 ,  E21B47/12 ,  E21B47/122

    Abstract: A measurement-while-drilling (MWD) telemetry system comprises a downhole MWD telemetry tool comprising a mud pulse (MP) telemetry unit and an electromagnetic (EM) telemetry unit. The MWD telemetry tool can be configured to transmit data in an EM-only telemetry mode using only the EM telemetry unit, in an MP-only mode using only the MP telemetry unit, or in a concurrent telemetry mode using both the EM and MP telemetry units concurrently. When transmitting data in the concurrent telemetry mode, the telemetry tool can be configured to transmit in a concurrent confirmation mode wherein the same telemetry data is transmitted by each of the EM and MP telemetry units, or in a concurrent shared mode wherein some of the telemetry data is transmitted by the EM telemetry unit, and the rest of the telemetry data is transmitted by the MP telemetry unit. The telemetry tool can be programmed to change its operating telemetry mode in response to a downlink command sent by an operator at surface.

    Abstract translation: 遥测测量系统包括井下MWD遥测工具，包括泥浆脉冲（MP）遥测单元和电磁（EM）遥测单元。 MWD遥测工具可以配置为仅使用EM遥测单元，仅使用MP遥测单元的MP-only模式或使用EM和MP遥测的并发遥测模式，仅在EM-only遥测模式下传输数据 单位同时进行。 当以并行遥测模式发送数据时，遥测工具可以被配置为以并行确认模式进行传输，其中相同的遥测数据由EM和MP遥测单元中的每一个发射，或者以并发共享模式发送，其中一些遥测 数据由EM遥测单元传输，其余遥测数据由MP遥测单元传输。 可以对遥测工具进行编程，以响应于操作者在表面发送的下行链路命令来改变其操作遥测模式。

    SYSTEM AND METHOD FOR CHARGING A CAPACITOR USED TO POWER MEASUREMENT-WHILE-DRILLING EQUIPMENT
    13.
    发明申请
    SYSTEM AND METHOD FOR CHARGING A CAPACITOR USED TO POWER MEASUREMENT-WHILE-DRILLING EQUIPMENT 有权
    用于电力测量的电容器的充电系统和方法 - 钻探设备

    公开(公告)号：US20160064966A1

    公开(公告)日：2016-03-03

    申请号：US14771729

    申请日：2014-03-07

    Applicant: EVOLUTION ENGINEERING INC.

    Inventor： Jili LIU ,  Xia PAN

    IPC: H02J7/00 ,  E21B41/00

    CPC classification number: H02J7/008 ,  E21B41/0085 ,  H02J7/0068 ,  H02J7/345

    Abstract: A system for charging a capacitor used to power measurement-while-drilling equipment includes a power bus, which is electrically connected to the capacitor; a first pair of battery terminals; switching circuitry for electrically connecting the power bus to and disconnecting the power bus from the first pair of battery terminals; and a controller, for controlling the switching circuitry, which is configured to charge the capacitor by applying a first pulse width modulated control signal to control the switching circuitry. The first pulse width modulated control signal has a duty cycle selected such that the voltage of the first battery remains above a first minimum operating voltage while the capacitor is being charged.

    Abstract translation: 用于对钻探设备进行测量的电容器充电的系统包括电连接到电容器的电源总线; 第一对电池端子; 切换电路，用于将电力总线电连接到电源总线和从第一对电池端子断开电源总线; 以及用于控制开关电路的控制器，其被配置为通过施加第一脉冲宽度调制控制信号来对所述电容器充电以控制所述开关电路。 第一脉冲宽度调制控制信号具有占空比选择，使得当电容器被充电时，第一电池的电压保持高于第一最小工作电压。

    BACK UP DIRECTIONAL AND INCLINATION SENSORS AND METHOD OF OPERATING SAME
    14.
    发明申请
    BACK UP DIRECTIONAL AND INCLINATION SENSORS AND METHOD OF OPERATING SAME 有权
    备份方向和内置传感器及其操作方法

    公开(公告)号：US20150345283A1

    公开(公告)日：2015-12-03

    申请号：US14649507

    申请日：2013-12-06

    Applicant: EVOLUTION ENGINEERING INC.

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

    IPC: E21B47/024 ,  E21B47/12

    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。

    DOWNHOLE ELECTROMAGNETIC AND MUD PULSE TELEMETRY APPARATUS
    16.
    发明申请
    DOWNHOLE ELECTROMAGNETIC AND MUD PULSE TELEMETRY APPARATUS 审中-公开

    公开(公告)号：US20180371899A1

    公开(公告)日：2018-12-27

    申请号：US16054227

    申请日：2018-08-03

    Applicant: EVOLUTION ENGINEERING INC.

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

    IPC: E21B47/18 ,  E21B47/12

    Abstract: A measurement-while-drilling (MWD) telemetry system comprises a downhole MWD telemetry tool comprising a mud pulse (MP) telemetry unit and an electromagnetic (EM) telemetry unit. The MWD telemetry tool can be configured to transmit data in an EM-only telemetry mode using only the EM telemetry unit, in an MP-only mode using only the MP telemetry unit, or in a concurrent telemetry mode using both the EM and MP telemetry units concurrently. When transmitting data in the concurrent telemetry mode, the telemetry tool can be configured to transmit in a concurrent confirmation mode wherein the same telemetry data is transmitted by each of the EM and MP telemetry units, or in a concurrent shared mode wherein some of the telemetry data is transmitted by the EM telemetry unit, and the rest of the telemetry data is transmitted by the MP telemetry unit. The telemetry tool can be programmed to change its operating telemetry mode in response to a downlink command sent by an operator at surface.

    DOWNHOLE ELECTROMAGNETIC AND MUD PULSE TELEMETRY APPARATUS
    17.
    发明申请
    DOWNHOLE ELECTROMAGNETIC AND MUD PULSE TELEMETRY APPARATUS 有权

    公开(公告)号：US20170362934A1

    公开(公告)日：2017-12-21

    申请号：US15674088

    申请日：2017-08-10

    Applicant: EVOLUTION ENGINEERING INC.

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

    IPC: E21B47/18 ,  E21B47/12

    CPC classification number: E21B47/18 ,  E21B47/12 ,  E21B47/122

    Abstract: A measurement-while-drilling (MWD) telemetry system comprises a downhole MWD telemetry tool comprising a mud pulse (MP) telemetry unit and an electromagnetic (EM) telemetry unit. The MWD telemetry tool can be configured to transmit data in an EM-only telemetry mode using only the EM telemetry unit, in an MP-only mode using only the MP telemetry unit, or in a concurrent telemetry mode using both the EM and MP telemetry units concurrently. When transmitting data in the concurrent telemetry mode, the telemetry tool can be configured to transmit in a concurrent confirmation mode wherein the same telemetry data is transmitted by each of the EM and MP telemetry units, or in a concurrent shared mode wherein some of the telemetry data is transmitted by the EM telemetry unit, and the rest of the telemetry data is transmitted by the MP telemetry unit. The telemetry tool can be programmed to change its operating telemetry mode in response to a downlink command sent by an operator at surface.

    TELEMETRY SYSTEMS WITH COMPENSATION FOR SIGNAL DEGRADATION AND RELATED METHODS
    19.
    发明申请
    TELEMETRY SYSTEMS WITH COMPENSATION FOR SIGNAL DEGRADATION AND RELATED METHODS 有权
    具有信号降解补偿的电报系统及相关方法

    公开(公告)号：US20160130937A1

    公开(公告)日：2016-05-12

    申请号：US14894366

    申请日：2014-05-30

    Applicant: EVOLUTION ENGINEERING INC.

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

    IPC: E21B47/18

    CPC classification number: E21B47/18

    Abstract: This invention comprises systems, methods and apparatus for mud pulse telemetry involving sending benchmark pulses with known characteristics (such as amplitude or duration) from the surface to the BHA, measuring those characteristics at the BHA, using those measurements to predict the likely attenuation of downhole-to-surface mud pulse transmissions, and adjusting those transmissions to compensate for high attenuation or to obtain energy savings (or transmission rate increases) during low-attenuation conditions. Further refinements on these systems and methods, particularly concerning the use of signal-to-noise ratio measurements at the surface to more efficiently predict attenuation, are also disclosed.

    Abstract translation: 本发明包括用于泥浆脉冲遥测的系统，方法和装置，其包括从表面到BHA发送具有已知特征（例如振幅或持续时间）的基准脉冲，测量BHA处的这些特征，使用这些测量来预测井下可能的衰减 并且在低衰减条件下调整这些传输以补偿高衰减或获得节能（或传输速率增加）。 还公开了对这些系统和方法的进一步改进，特别是关于在表面使用信噪比测量来更有效地预测衰减。

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