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公开(公告)号：US20050274513A1
公开(公告)日：2005-12-15
申请号：US10868695
申请日：2004-06-15
申请人： Roger Schultz , Neal Skinner , Pete Dagenais , Orlando Jesus
发明人： Roger Schultz , Neal Skinner , Pete Dagenais , Orlando Jesus
CPC分类号： E21B47/122 , E21B43/04 , E21B43/08 , E21B47/00
摘要： The present invention provides a system for determining downhole conditions including a time domain reflectometer (172) that is operable to generate a transmission signal and receive a reflected signal. A tubular (192) is positioned downhole in a downhole medium (214, 216, 218, 220, 222) and a waveguide (186), which is in electrical communication with the time domain reflectometer (172), is operably contacting the downhole (214, 216, 218, 220, 222). The waveguide (186) is operable to propagate the transmission signal and operable to propagate the reflected signal that is generated responsive to an electromagnetic property of the downhole medium (214, 216, 218, 220, 222).
摘要翻译： 本发明提供了一种用于确定井下状况的系统，包括时域反射计（172），其可操作以产生发射信号并接收反射信号。 管状（192）位于井下介质（214,216,218,220,222）内，并且与时域反射计（172）电气连通的波导管（186）可操作地接触井下（ 214,216,218,220,222）。 波导（186）可操作以传播传输信号并且可操作以传播响应于井下介质（214,216,218,220,222）的电磁特性产生的反射信号。
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公开(公告)号：US20050248334A1
公开(公告)日：2005-11-10
申请号：US10841780
申请日：2004-05-07
申请人： Pete Dagenais , Orlando Jesus , Liping Li
发明人： Pete Dagenais , Orlando Jesus , Liping Li
CPC分类号： E21B47/00
摘要： A system and method for monitoring erosion include a sensor (204) that is embedded in a substrate (202) having a first surface (206) that is subject to erosion and a second surface (208). The sensor (204) has a first mode in which the sensor (204) is responsive to RF interrogation (216) from a detector (212) and a second mode in which the sensor (204) is non-responsive to the RF interrogation. The sensor (204) transitions from the first mode to the second mode in response to being disabled due to contact with the erosive agent causing the erosion of the first surface (206). When the sensor (204) has transitioned to the second mode, this indicates that a predetermined level of erosion of the first surface (206) has occurred.
摘要翻译： 用于监测侵蚀的系统和方法包括嵌入在具有受到侵蚀的第一表面（206）和第二表面（208）的基底（202）中的传感器（204）。 传感器（204）具有第一模式，其中传感器（204）响应于来自检测器（212）的RF询问（216）和传感器（204）不响应于RF询问的第二模式。 响应于由于与侵蚀剂接触导致第一表面（206）的侵蚀而被禁用，传感器（204）从第一模式转变到第二模式。 当传感器（204）转变到第二模式时，这表明已经发生了第一表面（206）的预定水平的侵蚀。
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