-
公开(公告)号：US20150144333A1
公开(公告)日：2015-05-28
申请号：US14518798
申请日：2014-10-20
CPC分类号： E21B43/14 , E21B47/101
摘要： A method of monitoring fluid flow in a borehole includes measuring acoustics at a plurality of locations along a downhole assembly in a borehole and calculating a fluid flow rate at the plurality of locations along the downhole assembly based on measuring the acoustics at the plurality of locations.
摘要翻译： 监测钻孔中的流体流动的方法包括测量在钻孔中的井下组件的多个位置处的声学，并且基于测量多个位置处的声学来计算沿井下组件的多个位置处的流体流速。
-
公开(公告)号：US20150082891A1
公开(公告)日：2015-03-26
申请号：US14464135
申请日：2014-08-20
申请人： Daniel Boyd Cooper , Erik N. Lee
发明人： Daniel Boyd Cooper , Erik N. Lee
IPC分类号： G01H9/00
CPC分类号： G01H9/004 , G01V2210/1429
摘要： A system and method for measuring the vibration of a structure of interest are disclosed. The disclosure provides an acoustic isolation structure to substantially reduce response to acoustic energy generated by external physical stimuli. The acoustic isolation structure is formed by placing a housing, such as an outer conduit, around an inner conduit, forming a gap between the housing and the inner conduit. The gap is then configured to serve as an acoustic isolation layer by either filling the gap with an acoustic isolation material or by substantially evacuating the gap and sealing the ends thereof.
摘要翻译： 公开了一种用于测量感兴趣的结构的振动的系统和方法。 本公开提供了一种声学隔离结构，以显着降低对由外部物理刺激产生的声能的响应。 声隔离结构通过将外壳（例如外导管）放置在内导管周围形成，在壳体和内导管之间形成间隙。 然后将间隙配置为通过用声隔离材料填充间隙或通过基本上排空间隙并密封其端部来用作声隔离层。
-
公开(公告)号：US09739142B2
公开(公告)日：2017-08-22
申请号：US14459475
申请日：2014-08-14
申请人： Daniel Boyd Cooper , Erik N. Lee
发明人： Daniel Boyd Cooper , Erik N. Lee
CPC分类号： E21B47/123 , E21B47/00 , E21B47/0007 , E21B47/082 , E21B49/081 , G01S15/88
摘要： An apparatus for monitoring vibration of a downhole component includes an optical fiber sensor including at least one optical fiber operably connected to an interrogation unit. The at least one optical fiber has a resonant segment that is fixedly attached to the component via attachment points on the component, the resonant segment between the attachment points being separate from the component and having a resonant frequency based at least on the length of the resonant segment.
-
公开(公告)号：US20160084074A1
公开(公告)日：2016-03-24
申请号：US14492857
申请日：2014-09-22
CPC分类号： E21B47/09 , E21B47/101 , E21B47/123 , G01B11/00
摘要： A downhole tool orientation determination system to determine a radial orientation of a tool conveyed downhole into a pipe via a carrier and a method of determining a radial orientation of a tool conveyed downhole into a pipe via a carrier are described. The system includes an orientation tool conveyed downhole by the carrier that conveys the tool, and a distributed acoustic sensor (DAS). The DAS includes an optical fiber disposed axially along an outer surface of the pipe; and a processor to determine an orientation of the orientation tool with respect to the optical fiber based on a measurement by the optical fiber at different rotational positions of the orientation tool. The processor determines the radial orientation of the tool with respect to the optical fiber based on the orientation of the orientation tool with respect to the optical fiber.
摘要翻译： 一种井下刀具取向确定系统，用于确定通过载体向井下输送到管道中的工具的径向定位，以及确定通过载体向井下进入管道的工具的径向定向的方法。 该系统包括由运送工具的载体井下传送的定向工具和分布式声传感器（DAS）。 DAS包括沿着管的外表面轴向设置的光纤; 以及处理器，其基于在所述定向工具的不同旋转位置处的所述光纤的测量来确定所述定向工具相对于所述光纤的取向。 处理器基于取向工具相对于光纤的取向来确定工具相对于光纤的径向取向。
-
公开(公告)号：US09670759B2
公开(公告)日：2017-06-06
申请号：US14518798
申请日：2014-10-20
CPC分类号： E21B43/14 , E21B47/101
摘要： A method of monitoring fluid flow in a borehole includes measuring acoustics at a plurality of locations along a downhole assembly in a borehole and calculating a fluid flow rate at the plurality of locations along the downhole assembly based on measuring the acoustics at the plurality of locations.
-
公开(公告)号：US20150075276A1
公开(公告)日：2015-03-19
申请号：US14459475
申请日：2014-08-14
申请人： Daniel Boyd Cooper , Erik N. Lee
发明人： Daniel Boyd Cooper , Erik N. Lee
IPC分类号： E21B47/12
CPC分类号： E21B47/123 , E21B47/00 , E21B47/0007 , E21B47/082 , E21B49/081 , G01S15/88
摘要： An apparatus for monitoring vibration of a downhole component includes an optical fiber sensor including at least one optical fiber operably connected to an interrogation unit. The at least one optical fiber has a resonant segment that is fixedly attached to the component via attachment points on the component, the resonant segment between the attachment points being separate from the component and having a resonant frequency based at least on the length of the resonant segment.
摘要翻译： 一种用于监测井下部件的振动的装置包括光纤传感器，其包括可操作地连接到询问单元的至少一根光纤。 所述至少一个光纤具有通过所述部件上的附接点固定地附接到所述部件的谐振段，所述附接点之间的谐振段与所述部件分离并且具有至少基于所述谐振器的长度的谐振频率 分割。
-
公开(公告)号：US09791312B2
公开(公告)日：2017-10-17
申请号：US14713044
申请日：2015-05-15
申请人： Daniel Boyd Cooper
发明人： Daniel Boyd Cooper
CPC分类号： G01H9/004 , G01M11/3172
摘要： A vibration detector and method of measuring vibration are described. The vibration detector includes an optical fiber comprising a reference reflector and a delay coil, and one or more sensors comprised at respective one or more locations in the optical fiber, each of the one or more sensors including a center reflector and two side reflectors on either side of the center reflector, the delay coil eliminating detection of interference among reflections from the one or more sensors. The vibration detector also includes a light source to introduce light into the optical fiber to interrogate the optical fiber, a detector to obtain interference signals, each of the interference signals being based on interference between reflections from the reference reflector and one of the one or more sensors; and a processor to process each of the interference signals to obtain vibration measurements.
-
公开(公告)号：US09377559B2
公开(公告)日：2016-06-28
申请号：US14028023
申请日：2013-09-16
申请人： Daniel Boyd Cooper
发明人： Daniel Boyd Cooper
CPC分类号： G01V11/002 , G01H9/004
摘要： An acoustic sensing system includes, an optical fiber, a plurality of pairs of reflectors distributed along the optical fiber at specific areas where acoustic energy data is sought, a source of coherent radiation in operable communication with the optical fiber, and a detector in operable communication with the optical fiber configured to detect a different wavelength of coherent radiation reflected from each of the plurality of pairs of reflectors including a portion of the coherent radiation reflected from the reflector nearer the detector after having reflected from the reflector further from the detector that define one of the pairs of reflectors.
摘要翻译： 声学传感系统包括：光纤，在寻找声能数据的特定区域处沿着光纤分布的多对反射器，与光纤可操作地通信的相干辐射源，以及可操作通信的检测器 其中所述光纤被配置为检测从所述多对反射器中的每一对反射的相干辐射的不同波长，所述相干辐射包括从所述反射器反射的所述相干辐射的一部分在从所述反射器进一步从所述检测器反射之后， 的反射器对。
-
公开(公告)号：US20170108615A1
公开(公告)日：2017-04-20
申请号：US14886718
申请日：2015-10-19
申请人： Daniel Boyd Cooper
发明人： Daniel Boyd Cooper
CPC分类号： G01V11/002 , E21B47/00 , E21B47/123 , G01H9/004 , G01V2210/1429
摘要： An apparatus for sensing vibration in a borehole penetrating the earth includes an optical fiber having a plurality of pairs of reflectors configured to reflect light between each of the pairs of reflectors in the plurality, wherein each pair of reflectors is separated by a nominal distance L and an adjacent pair of reflectors in the plurality are separated by a nominal distance D, and an optical interrogator configured to sense a distance between each pair of reflectors in the plurality over time to sense the vibration. A laser emits semi-coherent light over a swept range of wavelengths to illuminate the optical fiber, wherein the semi-coherent light provides for sensing over distance L in the optical fiber between each pair of reflectors and for no sensing in the optical fiber over distance D between different pairs of reflectors. A photodetector senses light received from the optical fiber.
-
公开(公告)号：US10018749B2
公开(公告)日：2018-07-10
申请号：US14886718
申请日：2015-10-19
申请人： Daniel Boyd Cooper
发明人： Daniel Boyd Cooper
CPC分类号： G01V11/002 , E21B47/00 , E21B47/123 , G01H9/004 , G01V2210/1429
摘要： An apparatus for sensing vibration in a borehole penetrating the earth includes an optical fiber having a plurality of pairs of reflectors configured to reflect light between each of the pairs of reflectors in the plurality, wherein each pair of reflectors is separated by a nominal distance L and an adjacent pair of reflectors in the plurality are separated by a nominal distance D, and an optical interrogator configured to sense a distance between each pair of reflectors in the plurality over time to sense the vibration. A laser emits semi-coherent light over a swept range of wavelengths to illuminate the optical fiber, wherein the semi-coherent light provides for sensing over distance L in the optical fiber between each pair of reflectors and for no sensing in the optical fiber over distance D between different pairs of reflectors. A photodetector senses light received from the optical fiber.
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.023 秒)
