MONITORING USING DISTRIBUTED ACOUSTIC SENSING (DAS) TECHNOLOGY
    1.
    发明申请
    MONITORING USING DISTRIBUTED ACOUSTIC SENSING (DAS) TECHNOLOGY 审中-公开
    使用分布式声学感应(DAS)技术监测

    公开(公告)号:US20120092960A1

    公开(公告)日:2012-04-19

    申请号:US13276959

    申请日:2011-10-19

    IPC分类号: G01V1/00

    摘要: Methods and systems are provided for performing acoustic sensing by utilizing distributed acoustic sensing (DAS) along a length of a conduit, such that the sensing is performed with the functional equivalent of tens, hundreds, or thousands of sensors. Utilizing DAS in this manner may cut down the time in performing acoustic sensing, which, therefore, may make acoustic sensing more practical and cost effective and may enable applications that were previously cost prohibitive with discrete acoustic sensors.

    摘要翻译: 提供了用于通过沿导管的长度利用分布式声学感测(DAS)来执行声学感测的方法和系统,使得用数十,数百或数千个传感器的功能等效物进行感测。 以这种方式利用DAS可以减少执行声学感测的时间,因此,这可以使声学感测更实用和成本有效,并且可以使得先前对离散声学传感器成本过高的应用。

    Use of pattern recognition in a measurement of formation transit time for seismic checkshots
    3.
    发明申请
    Use of pattern recognition in a measurement of formation transit time for seismic checkshots 审中-公开
    在地震检查的地层通行时间测量中使用模式识别

    公开(公告)号:US20050052949A1

    公开(公告)日:2005-03-10

    申请号:US10806009

    申请日:2004-03-22

    摘要: A method and system is provided for acquiring seismic data while conducting drill string operations in a wellbore. A seismic receiver is conveyed in a drill string to a location of interest; coded seismic signals are generated by a seismic source near a surface location; the coded seismic signals are detected with at least one sensor in the seismic receiver at least one location of interest in the wellbore as the drill string is operated in the wellbore; an arrival time of the detected seismic signal is computed in the seismic receiver; and the detected seismic signals or computed arrival times are stored in the seismic receiver or transferred to the surface.

    摘要翻译: 提供一种用于在井眼中进行钻柱操作时采集地震数据的方法和系统。 地震接收器在钻柱中传送到感兴趣的位置; 编码的地震信号由表面位置附近的地震源产生; 当钻柱在井眼中操作时,在地震接收器中至少一个感兴趣的位置在井筒中的至少一个传感器检测编码的地震信号; 在地震接收机中计算检测到的地震信号的到达时间; 并且将检测到的地震信号或计算出的到达时间存储在地震接收机中或传送到地面。