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    • 4. 发明申请
    • DRILLING COLLISION AVOIDANCE APPARATUS, METHODS, AND SYSTEMS
    • 钻孔冲击避免装置,方法和系统
    • US20120158305A1
    • 2012-06-21
    • US13378515
    • 2010-04-13
    • Paul F. RodneyDavid LyleMac UpshallRichard Thomas Hay
    • Paul F. RodneyDavid LyleMac UpshallRichard Thomas Hay
    • G06F19/00G01V3/165
    • G01V3/26
    • In some embodiments, apparatus and systems, as well as methods, may operate to launch a set of currents into a corresponding set of existing well casings; monitor, in a well under construction, changes in at least one of a magnetic field or an electric field perturbed by the set of currents after each one of the set is launched; and determine a location of the well under construction in relation to the set of existing well casings. In some embodiments, the activities include inducing current into a drillstring located in a well under construction; monitoring, at a set of existing well casings, changes in at least one of a magnetic field or an electric field perturbed by the current after the current is induced; and determining a location of the well under construction in relation to the set of existing well casings. Additional apparatus, systems, and methods are disclosed.
    • 在一些实施例中,装置和系统以及方法可以操作以将一组电流发射到相应的一组现有的井套管中; 在正在建造中的监视器中,在启动了所述组中的每一个之后,在由所述一组电流扰动的磁场或电场中的至少一个中改变; 并确定与现有井套组相关的正在建造的井的位置。 在一些实施例中,活动包括将电流引入位于构造中的井中的钻柱; 在一组现有的井套管中监测由电流引起的电流扰动的磁场或电场中的至少一个的变化; 并且确定正在建造中的井的位置与现有的井套组相关。 公开了附加装置,系统和方法。
    • 5. 发明申请
    • Near-Field Electromagnetic Communications Network for Downhole Telemetry
    • 用于井下遥测的近场电磁通信网络
    • US20120126993A1
    • 2012-05-24
    • US13387843
    • 2009-08-11
    • Etienne M. SamsonPaul F. Rodney
    • Etienne M. SamsonPaul F. Rodney
    • G01V3/12
    • G01V1/003
    • A disclosed downhole telemetry system employs an array of near-field electromagnetic communication devices to relay information along a tubular in a borehole. In some embodiments, the devices are permanently attached to pipe joints without requiring any structural modification of the pipe joints. As the pipe joints are strung together in the normal fashion to form a tubular, the devices automatically establish a wireless communications path between an uphole terminus device and any downhole sensors or tools. The devices can include built-in sensors to provide distributed sensing of parameters such as temperature and pressure. In some embodiments the device array incorporates redundancy to minimize the chance of a communications network failure. The device array has applications for logging-while-drilling, production testing, well completion, reservoir monitoring, and well control.
    • 所公开的井下遥测系统采用近场电磁通信装置的阵列来沿着井眼中的管状物中继信息。 在一些实施例中,这些装置永久地连接到管接头上,而不需要管接头的任何结构修改。 当管接头以正常方式串联在一起以形成管状时,这些装置自动地在井上终端装置和任何井下传感器或工具之间建立无线通信路径。 这些设备可以包括内置传感器,以提供诸如温度和压力等参数的分布式感测。 在一些实施例中,设备阵列包含冗余以最小化通信网络故障的机会。 该设备阵列具有钻井测井,生产测试,油井完井,油藏监测和油井控制等应用。
    • 7. 发明申请
    • SIGNAL PROPAGATION ACROSS GAPS
    • 信号传播
    • US20110247803A1
    • 2011-10-13
    • US13132531
    • 2009-10-20
    • Paul F. RodneyClive D. Menezes
    • Paul F. RodneyClive D. Menezes
    • E21B47/00E21B47/12
    • G01V11/002E21B47/122
    • In some embodiments, an apparatus and a system, as well as a method and an article, may operate to monitor a first condition associated with transmitting or receiving a signal in a formation or on a drill string, or both, over a first selected interval of a drill string located down hole; to monitor a second condition associated with transmitting or receiving the signal in the formation or on the drill string or both, over a second selected interval of the drill string; to compare the first condition to the second condition to provide a comparison result; and based on the comparison result, to select one of the first selected interval or the second selected interval to transmit or receive the signal in the formation or on the drill string, or both. Additional apparatus, systems, and methods are disclosed.
    • 在一些实施例中,设备和系统以及方法和物品可以操作以监视与在地层中或在钻柱上或在两者之间的信号的发射或接收相关联的第一条件, 位于井下的钻柱; 在钻柱的第二选定间隔上监测与在地层中或在钻柱上或两者上发射或接收信号相关联的第二条件; 将第一条件与第二条件进行比较以提供比较结果; 并且基于比较结果,选择第一选择间隔或第二选定间隔中的一个来发送或接收地层或钻柱上的信号,或两者。 公开了附加装置,系统和方法。