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公开(公告)号:US07034768B2
公开(公告)日:2006-04-25
申请号:US10895765
申请日:2004-07-21
CPC分类号: H01Q1/04 , E21B7/04 , E21B47/122 , G01S7/4008 , G01S13/88 , G01V3/30 , H01Q1/40 , H01Q9/36 , H01Q9/42
摘要: An underground telemetry system having an antenna system having at least one metallic radiating element having a single or a dual top loaded folded monopole configuration and disposed within a metallic housing and having RF electronics to self-calibrate and tune the input impedance of the antenna elements.
摘要翻译: 一种具有天线系统的地下遥测系统,该天线系统具有至少一个金属辐射元件,所述金属辐射元件具有单顶或双顶折叠单极配置,并且设置在金属外壳内,并具有RF电子学以自校准和调谐天线元件的输入阻抗。
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公开(公告)号:US07013991B2
公开(公告)日:2006-03-21
申请号:US10919748
申请日:2004-08-17
申请人: Alan Wilson-Langman , Michael R. Inggs , Leendert Johannes du Toit , Kirankumar M. Kothari , David R. Hanson
发明人: Alan Wilson-Langman , Michael R. Inggs , Leendert Johannes du Toit , Kirankumar M. Kothari , David R. Hanson
IPC分类号: E21B44/06
摘要: An obstacle avoidance system for obstacle detection in an opaque material. The system includes at least one electromagnetic signal source adapted to produce an electromagnetic source signal suitable for transmission through the opaque material, at least one electromagnetic signal detector adapted to receive reflected electromagnetic energy signals from discontinuities in the opaque material encountered by the electromagnetic source signal, and a reflected electromagnetic energy signal processor suitable for determining a presence of obstructions and/or strata variations within the opaque material. The system is preferably integral with a head element suitable for traversing the opaque material, for example a subterranean drill bit.
摘要翻译: 在不透明材料中进行障碍物检测的障碍物回避系统。 该系统包括适于产生适于通过不透明材料传输的电磁源信号的至少一个电磁信号源,至少一个电磁信号检测器,适于从电磁源信号遇到的不透明材料的不连续部分接收反射的电磁能信号, 以及适用于确定不透明材料内的障碍物和/或层状变化的存在的反射电磁能量信号处理器。 该系统优选地与适于横穿不透明材料(例如地下钻头)的头部元件成一体。
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