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    Wireless two-way communication for downhole tools
    1.
    发明授权
    Wireless two-way communication for downhole tools 有权
    无线双向通信用于井下工具

    公开(公告)号：US09091153B2

    公开(公告)日：2015-07-28

    申请号：US13527102

    申请日：2012-06-19

    申请人： Libo Yang ,  Reza Taherian ,  Dean M. Homan ,  Paul Wanjau ,  David Rose ,  Onur Ozen

    发明人： Libo Yang ,  Reza Taherian ,  Dean M. Homan ,  Paul Wanjau ,  David Rose ,  Onur Ozen

    IPC分类号： E21B47/12

    CPC分类号： E21B47/12 ,  E21B33/072 ,  E21B47/01 ,  E21B47/122

    摘要： Systems, methods, and devices for two-way communication with a downhole tool string are provided. In one example, a method may include placing a downhole tool string into a pressure riser of a well while at least one component of the downhole tool string is not activated. Thereafter, a wireless control signal may be issued through the pressure riser to the downhole tool to cause the downhole tool string to activate the component. The wireless control signal may involve an acoustic signal, an optical signal, and/or an electromagnetic signal such as electrical dipole coupling or magnetic dipole coupling.

    摘要翻译： 提供了用于与井下工具串进行双向通信的系统，方法和设备。 在一个示例中，方法可以包括将井下工具串放置在井的压力提升器中，而井下工具串的至少一个部件未被激活。 此后，可以通过压力提升器向井下工具发出无线控制信号，以使井下工具串激活部件。 无线控制信号可以包括声信号，光信号和/或诸如电偶极耦合或磁偶极耦合的电磁信号。

    Wireless Two-Way Communication For Downhole Tools
    2.
    发明申请
    Wireless Two-Way Communication For Downhole Tools 有权
    无线双向通信用于井下工具

    公开(公告)号：US20130168081A1

    公开(公告)日：2013-07-04

    申请号：US13527102

    申请日：2012-06-19

    申请人： Libo Yang ,  Reza Taherian ,  Dean M. Homan ,  Paul Wanjau ,  David Rose ,  Onur Ozen

    发明人： Libo Yang ,  Reza Taherian ,  Dean M. Homan ,  Paul Wanjau ,  David Rose ,  Onur Ozen

    IPC分类号： E21B47/12

    CPC分类号： E21B47/12 ,  E21B33/072 ,  E21B47/01 ,  E21B47/122

    摘要： Systems, methods, and devices for two-way communication with a downhole tool string are provided. In one example, a method may include placing a downhole tool string into a pressure riser of a well while at least one component of the downhole tool string is not activated. Thereafter, a wireless control signal may be issued through the pressure riser to the downhole tool to cause the downhole tool string to activate the component. The wireless control signal may involve an acoustic signal, an optical signal, and/or an electromagnetic signal such as electrical dipole coupling or magnetic dipole coupling.

    摘要翻译： 提供了用于与井下工具串进行双向通信的系统，方法和设备。 在一个示例中，方法可以包括将井下工具串放置在井的压力提升器中，而井下工具串的至少一个部件未被激活。 此后，可以通过压力提升器向井下工具发出无线控制信号，以使井下工具串激活部件。 无线控制信号可以包括声信号，光信号和/或诸如电偶极耦合或磁偶极耦合的电磁信号。

    Modified Triaxial Antenna Array
    4.
    发明申请
    Modified Triaxial Antenna Array 审中-公开
    改进的三轴天线阵列

    公开(公告)号：US20160202382A1

    公开(公告)日：2016-07-14

    申请号：US14234584

    申请日：2012-06-28

    申请人： Scott Dyas ,  Dean M. Homan ,  Sergiy Kryukov ,  Reza Taherian ,  Daniel Codazzi

    发明人： Scott Dyas ,  Dean M. Homan ,  Sergiy Kryukov ,  Reza Taherian ,  Daniel Codazzi

    IPC分类号： G01V3/28

    CPC分类号： G01V3/28 ,  G01V3/30

    摘要： Various triaxial antenna designs having are provided. Some embodiments include a split-z coil that can include two axial coils with saddle coils in the x- and y-directions located therebetween. The split z-coils can function by having a combined magnetic moment similar to that of a single axial coil located between the two parts of the split z-coil. In some examples, the antenna assemblies can include a protrusion or other non-planar structure.

    摘要翻译： 提供了各种各样的三轴天线设计。 一些实施例包括分裂z线圈，其可以包括两个轴向线圈，其中位于它们之间的x和y方向上具有鞍形线圈。 分离的z线圈可以通过具有与分开的z-线圈的两个部分之间的单个轴向线圈的组合磁矩类似的功能。 在一些示例中，天线组件可以包括突起或其他非平面结构。

    GAIN-CORRECTED MEASUREMENTS
    6.
    发明申请
    GAIN-CORRECTED MEASUREMENTS 审中-公开
    增益测量

    公开(公告)号：US20130191028A1

    公开(公告)日：2013-07-25

    申请号：US13695216

    申请日：2011-04-27

    申请人： Dean M. Homan ,  Emmanuel Legendre ,  Reza Taherian ,  Jean Seydoux ,  Eunmi Choi ,  Gerald N. Minerbo ,  Sergiy Kryukov ,  Robert C. Smith

    发明人： Dean M. Homan ,  Emmanuel Legendre ,  Reza Taherian ,  Jean Seydoux ,  Eunmi Choi ,  Gerald N. Minerbo ,  Sergiy Kryukov ,  Robert C. Smith

    IPC分类号： G01R35/00 ,  G06F15/00 ,  G21F3/00 ,  G01V3/18

    CPC分类号： G01R35/005 ,  G01V3/18 ,  G01V3/28 ,  G06F15/00 ,  G21F3/00

    摘要： A method to obtain gain-corrected measurements. A measurement tool having one or more arrays is provided, wherein the arrays include two co-located triaxial transmitters and two co-located triaxial receivers. Measurements are obtained using the transmitters and the receivers. Impedance matrices are formed from the obtained measurements and the impedance matrices are combined to provide gain-corrected measurements. The apparatus may alternatively be a while-drilling logging tool having one or more arrays, wherein each array comprises a transmitter, a receiver, and a buck, and wherein the signal received by the receiver is subtracted from the signal received by the buck or vice versa. A slotted shield may be incorporated into either embodiment of the tool. The slots may form one or more island elements. A material is disposed in the slots. The islands and shield body have complementary tapered sides that confine the islands within the shield body.

    摘要翻译： 获得增益校正测量的方法。 提供了具有一个或多个阵列的测量工具，其中阵列包括两个共同定位的三轴发射器和两个共同定位的三轴接收器。 使用发射机和接收机获得测量结果。 阻抗矩阵由所获得的测量形成，并且阻抗矩阵被组合以提供增益校正的测量。 该装置可替代地是具有一个或多个阵列的同时钻井测井工具，其中每个阵列包括发射器，接收器和降压器，并且其中由接收器接收的信号从由降压器或副部件接收的信号中减去 反之亦然。 开槽的护罩可以并入工具的任一实施例中。 槽可以形成一个或多个岛元件。 材料设置在槽中。 岛屿和盾体具有互补的锥形边，将岛屿限制在盾体内。

    Measuring the phase of received signals
    7.
    发明授权
    Measuring the phase of received signals 有权
    测量接收信号的相位

    公开(公告)号：US09182747B2

    公开(公告)日：2015-11-10

    申请号：US13525234

    申请日：2012-06-15

    申请人： Jean Seydoux ,  Libo Yang ,  Mark Kuchenbecker ,  Reza Taherian ,  Emmanuel Legendre ,  Jian Yang ,  Mark A. Fredette

    发明人： Jean Seydoux ,  Libo Yang ,  Mark Kuchenbecker ,  Reza Taherian ,  Emmanuel Legendre ,  Jian Yang ,  Mark A. Fredette

    IPC分类号： G04G7/00 ,  G06F19/00 ,  G01V3/28

    CPC分类号： G04G7/00 ,  G01V3/28 ,  G06F19/00

    摘要： The present disclosure relates to a method to determine the phase of a signal when transmitter and receiver circuits use separate clocks. A discrepancy between the separate clocks is determined, as is a correction factor between the separate clocks. The phase is determined using a measured time of arrival of the signal, the determined discrepancy, and the determined correction factor. A drift factor and an expected start time of a pulse sequence may be used to determine the discrepancy. A start time of a pulse within the pulse sequence is determined and used to determine the correction factor. The method works by either absolute synchronization of the separate clocks, or by making the measurements independent of clock synchronization.

    摘要翻译： 本公开涉及当发射机和接收机电路使用分离的时钟时确定信号的相位的方法。 确定分离时钟之间的差异，以及分离时钟之间的校正因子。 使用测量的信号到达时间，确定的差异和确定的校正因子确定相位。 漂移因子和脉冲序列的预期开始时间可用于确定差异。 脉冲序列内的脉冲的开始时间被确定并用于确定校正因子。 该方法通过独立时钟的绝对同步或通过使测量与时钟同步无关来工作。

    Measuring The Phase Of Received Signals
    8.
    发明申请
    Measuring The Phase Of Received Signals 审中-公开
    测量接收信号的相位

    公开(公告)号：US20130080102A1

    公开(公告)日：2013-03-28

    申请号：US13525234

    申请日：2012-06-15

    申请人： Jean Seydoux ,  Libo Yang ,  Mark Kuchenbecker ,  Reza Taherian ,  Emmanuel Legendre ,  Jian Yang ,  Mark A. Fredette

    发明人： Jean Seydoux ,  Libo Yang ,  Mark Kuchenbecker ,  Reza Taherian ,  Emmanuel Legendre ,  Jian Yang ,  Mark A. Fredette

    IPC分类号： G04G7/00 ,  G06F19/00

    CPC分类号： G04G7/00 ,  G01V3/28 ,  G06F19/00

    摘要： The present disclosure relates to a method to determine the phase of a signal when transmitter and receiver circuits use separate clocks. A discrepancy between the separate clocks is determined, as is a correction factor between the separate clocks. The phase is determined using a measured time of arrival of the signal, the determined discrepancy, and the determined correction factor. A drift factor and an expected start time of a pulse sequence may be used to determine the discrepancy. A start time of a pulse within the pulse sequence is determined and used to determine the correction factor. The method works by either absolute synchronization of the separate clocks, or by making the measurements independent of clock synchronization.

    摘要翻译： 本公开涉及当发射机和接收机电路使用分离的时钟时确定信号的相位的方法。 确定分离时钟之间的差异，以及分离时钟之间的校正因子。 使用测量的信号到达时间，确定的差异和确定的校正因子确定相位。 漂移因子和脉冲序列的预期开始时间可用于确定差异。 脉冲序列内的脉冲的开始时间被确定并用于确定校正因子。 该方法通过独立时钟的绝对同步或通过使测量与时钟同步无关来工作。

    Drill bit assembly having electrically isolated gap joint for measurement of reservoir properties
    9.
    发明授权
    Drill bit assembly having electrically isolated gap joint for measurement of reservoir properties 有权
    钻头组件具有电隔离间隙接头，用于测量油藏性能

    公开(公告)号：US09022144B2

    公开(公告)日：2015-05-05

    申请号：US13266080

    申请日：2009-10-29

    申请人： Brian Clark ,  Reza Taherian ,  Derek W. Logan ,  Garry Holmen ,  Anthony R. Dopf ,  Aaron Logan ,  Robert Utter

    发明人： Brian Clark ,  Reza Taherian ,  Derek W. Logan ,  Garry Holmen ,  Anthony R. Dopf ,  Aaron Logan ,  Robert Utter

    IPC分类号： E21B47/12 ,  G01V3/24 ,  E21B10/00

    CPC分类号： G01V3/24 ,  E21B10/00 ,  E21B17/028 ,  E21B45/00 ,  E21B47/122

    摘要： A drill bit assembly for measuring reservoir formation properties comprises a bit head and a pin body, and an electrically insulated gap joint between two conductive parts of the drill bit assembly. The bit head has a cutting end and an opposite connecting end with an engagement section. The pin body comprises a connecting end with an engagement section. The pin connecting end is connected to the bit head connecting end such that the engagement sections overlap. The electrically insulating gap joint can fill a gap between the bit head and pin body engagement sections such that the bit head and pin body are mechanically connected together at the connecting ends but electrically separated. Alternatively or additionally, the pin body can have two pieces which are separated by an electrically insulating gap joint. An electrical conductor is electrically connected at a first end to the bit head and is communicable at a second end with an alternating current signal to transmit an alternating current into the bit head, thereby inducing an electric current into a reservoir formation adjacent the bit head. Electronic equipment includes measurement circuitry configured to determine the alternating current at the bit head, the alternating current being inversely proportional to a bit resistivity of the formation.

    摘要翻译： 用于测量储层形成性能的钻头组件包括钻头头和销体，以及在钻头组件的两个导电部件之间的电绝缘间隙接头。 钻头头具有切割端和与接合部分相对的连接端。 销主体包括具有接合部分的连接端。 销连接端连接到钻头头连接端，使得接合部重叠。 电绝缘间隙接头可以填充钻头头和销体接合部分之间的间隙，使得钻头头和销体在连接端机械连接在一起但是电分离。 或者或另外，销体可以具有由电绝缘间隙接头分开的两个部件。 电导体在第一端处电连接到钻头头部，并且可在第二端与交流电信号通信，以将交流电流传输到钻头头中，从而引入电流进入与钻头头相邻的储层结构中。 电子设备包括测量电路，其被配置为确定位头处的交流电，交流电与地层的位电阻成反比。

    Look ahead logging system
    10.
    发明授权
    Look ahead logging system 有权
    向前看日志系统

    公开(公告)号：US08736270B2

    公开(公告)日：2014-05-27

    申请号：US12674366

    申请日：2008-08-22

    申请人： Jean Seydoux ,  Emmanuel Legendre ,  Reza Taherian

    发明人： Jean Seydoux ,  Emmanuel Legendre ,  Reza Taherian

    IPC分类号： G01V3/00

    CPC分类号： G01V3/26 ,  E21B1/00 ,  G01N1/00 ,  G01V3/28 ,  G01V2200/00

    摘要： A technique utilizes the acquisition of data from desired subterranean regions via a logging system. The logging system is constructed for use in a wellbore and comprises a transmitter module having a transmitter antenna. Additionally, the logging system utilizes a receiver module spaced from the transmitter module and having a receiver antenna. The transmitter antenna and the receiver antenna are oriented to enable sensitivity in desired directions, such as ahead of the logging system.

    摘要翻译： 一种技术利用通过测井系统从期望的地下区域采集数据。 记录系统被构造用于在井筒中使用，并且包括具有发射机天线的发射机模块。 此外，测井系统利用与发射器模块间隔开并具有接收器天线的接收器模块。 发射机天线和接收机天线被定向成使得能够在所需方向上的灵敏度，例如在测井系统之前。