SYSTEM AND METHOD FOR MEASURING THE VIBRATION OF A STRUCTURE
    11.
    发明申请
    SYSTEM AND METHOD FOR MEASURING THE VIBRATION OF A STRUCTURE 审中-公开
    用于测量结构振动的系统和方法

    公开(公告)号:US20150082891A1

    公开(公告)日:2015-03-26

    申请号:US14464135

    申请日:2014-08-20

    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。

    METHOD FOR MONITORING A FLOW USING DISTRIBUTED ACOUSTIC SENSING
    12.
    发明申请
    METHOD FOR MONITORING A FLOW USING DISTRIBUTED ACOUSTIC SENSING 审中-公开
    使用分布式声学感测监测流量的方法

    公开(公告)号:US20150075292A1

    公开(公告)日:2015-03-19

    申请号:US14328137

    申请日:2014-07-10

    申请人: Erik N. Lee

    发明人: Erik N. Lee

    IPC分类号: G01F1/66

    CPC分类号: G01F1/66 E21B47/101

    摘要: A method of monitoring acoustic energy using distributed acoustic sensing. The method involves supplying a fluid flow at different pressures and sensing fluid flow characteristics in at least one location at each pressure. The data may be processed to provide a fluid resistance value related to a particular fluid flow at each location, collectively forming a fluid resistance index (FRI). The method may include following the initial fluid flow with a process flow, which may then be followed by another fluid flow. The flow characteristics of the latter fluid flow may be measured and compared with the initial fluid flow, providing a measure of the success of the process flow. In application, this method may be used to enhance downhole operations, including acid stimulation treatments.

    摘要翻译: 使用分布式声学传感监测声能的方法。 该方法包括在不同压力下提供流体流并在每个压力下在至少一个位置感测流体流动特性。 可以处理数据以提供与每个位置处的特定流体流相关的流体阻力值,共同形成流体阻力指数(FRI)。 该方法可以包括随着具有工艺流程的初始流体流动,然后可以跟随另一流体流动。 可以测量后一流体流的流动特性并将其与初始流体流相比较,以提供工艺流程成功的量度。 在应用中,该方法可用于增强井下作业,包括酸刺激处理。

    Passive acoustic resonator for fiber optic cable tubing
    13.
    发明授权
    Passive acoustic resonator for fiber optic cable tubing 有权
    用于光纤电缆管的无源声共振器

    公开(公告)号:US09279317B2

    公开(公告)日:2016-03-08

    申请号:US13803049

    申请日:2013-03-14

    申请人: Erik N. Lee

    发明人: Erik N. Lee

    IPC分类号: E21B47/00 G01H13/00 E21B47/10

    摘要: A passive acoustic system and a method of utilizing the passive acoustic system in a subsurface borehole are discussed. The method includes disposing the passive acoustic system in the borehole, the passive acoustic system including at least one passive acoustic resonator, and monitoring a frequency of an acoustic signal at the at least one passive acoustic resonator. The passive acoustic system includes a protective tubing, a fiber optic cable disposed within the protective tubing, a fluid layer between the fiber optic cable and the protective tubing, and at least one passive acoustic resonator, the at least one passive acoustic resonator representing an area within the protective tubing having a known geometry, wherein the fluid layer affects a frequency of an acoustic signal obtained from the at least one passive acoustic resonator.

    摘要翻译: 讨论了一种被动声学系统和一种在地下钻孔中利用无源声学系统的方法。 所述方法包括将无源声学系统布置在钻孔中,所述无源声学系统包括至少一个无源声谐振器,以及监测所述至少一个无源声谐振器处的声信号的频率。 被动声学系统包括保护管,布置在保护管内的光纤电缆,光缆和保护管之间的流体层,以及至少一个无源声共振器,所述至少一个无源声谐振器代表区域 在具有已知几何形状的保护管内,其中流体层影响从至少一个无源声谐振器获得的声信号的频率。