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1.发明授权Apparatus and method for creating pulsating fluid flow, and method of manufacture for the apparatus 有权用于产生脉动流体流动的装置和方法，以及该装置的制造方法公开(公告)号：US07404416B2
公开(公告)日：2008-07-29
申请号：US10808986
申请日：2004-03-25
IPC分类号： E21B37/00
CPC分类号： F15C1/22 , Y10T137/2234
摘要： In one embodiment, the present invention provides an apparatus for creating pulsating fluid flow, including an inlet into which fluid flows and a chamber having an upstream end and a downstream end. The chamber is defined by a pair of outwardly-projecting sidewalls, and the inlet is disposed at the upstream end of the chamber. This particular embodiment further includes at least two feedback passages with opposed entrances at the downstream end of the chamber and opposed exits at the upstream end of the chamber, near where the chamber joins the inlet. At least one feedback outlet leaves each of the feedback passages. A feedback cavity is disposed at the downstream end of the chamber. At least one exit flowline having an exit port leaves the at least one feedback outlet.
摘要翻译： 在一个实施例中，本发明提供了一种用于产生脉动流体流的装置，包括流体流入的入口和具有上游端和下游端的腔室。 腔室由一对向外突出的侧壁限定，入口设置在腔室的上游端。 该特定实施例还包括至少两个反馈通道，其在腔的下游端处具有相对的入口，并且在室的上游端处相对的出口，其中腔室与入口接合。 至少一个反馈出口离开每个反馈通道。 反馈空腔设置在腔室的下游端。 具有出口的至少一个出口流线离开至少一个反馈出口。
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公开(公告)号：US07228900B2
公开(公告)日：2007-06-12
申请号：US10868695
申请日：2004-06-15
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：US07594434B2
公开(公告)日：2009-09-29
申请号：US12017483
申请日：2008-01-22
申请人： Pete C. Dagenais , Orlando de Jesus , Liping Li
发明人： Pete C. Dagenais , Orlando de Jesus , Liping Li
IPC分类号： E21B47/00
CPC分类号： E21B47/00
摘要： A downhole tool system includes a downhole tool operably positionable within a wellbore and a sensor positioned within the downhole tool. The sensor has a first mode and a second mode. In the first mode, the sensor is responsive to RF interrogation. In the second mode, the sensor is not responsive to RF interrogation. The sensor is operable to transition from the first mode to the second mode upon the occurrence of a predetermined level of erosion of the downhole tool proximate the sensor. A detector is operably positionable relative to the downhole tool and in communicative proximity to the sensor. The detector interrogates the sensor to determine whether the predetermined level of erosion has occurred.
摘要翻译： 井下工具系统包括可操作地定位在井筒内的井下工具和位于井下工具内的传感器。 传感器具有第一模式和第二模式。 在第一种模式下，传感器响应RF询问。 在第二种模式下，传感器不响应RF询问。 在接近传感器的井下工具的预定水平的侵蚀发生时，传感器可操作以从第一模式转换到第二模式。 检测器相对于井下工具可操作地定位并且与传感器通信。 检测器询问传感器以确定是否发生了预定的侵蚀水平。
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公开(公告)号：US20080128126A1
公开(公告)日：2008-06-05
申请号：US12017483
申请日：2008-01-22
申请人： Pete C. Dagenais , Orlando de Jesus , Liping Li
发明人： Pete C. Dagenais , Orlando de Jesus , Liping Li
IPC分类号： E21B12/02
CPC分类号： E21B47/00
摘要： A downhole tool system includes a downhole tool operably positionable within a wellbore and a sensor positioned within the downhole tool. The sensor has a first mode and a second mode. In the first mode, the sensor is responsive to RF interrogation. In the second mode, the sensor is not responsive to RF interrogation. The sensor is operable to transition from the first mode to the second mode upon the occurrence of a predetermined level of erosion of the downhole tool proximate the sensor. A detector is operably positionable relative to the downhole tool and in communicative proximity to the sensor. The detector interrogates the sensor to determine whether the predetermined level of erosion has occurred.
摘要翻译： 井下工具系统包括可操作地定位在井筒内的井下工具和位于井下工具内的传感器。 传感器具有第一模式和第二模式。 在第一种模式下，传感器响应RF询问。 在第二种模式下，传感器不响应RF询问。 当传感器附近的井下工具发生预定水平的侵蚀时，传感器可操作以从第一模式转换到第二模式。 检测器相对于井下工具可操作地定位并且与传感器通信。 检测器询问传感器以确定是否发生了预定的侵蚀水平。
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