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    Method and system for processing sonic data acquired with a downhole tool
    1.
    发明授权
    Method and system for processing sonic data acquired with a downhole tool 有权

    公开(公告)号：US11002871B2

    公开(公告)日：2021-05-11

    申请号：US15672414

    申请日：2017-08-09

    申请人： Schlumberger Technology Corporation

    发明人： Alain Dumont ,  Ayaka Abe

    IPC分类号： G01V1/50 ,  G01V1/46 ,  G01V1/48

    摘要： A method for processing sonic data acquired with a downhole sonic tool is provided. The method comprises detecting coherent noise based on a plurality of waveforms obtained from one or more receivers issued by one or more transmitters. The plurality of waveforms correspond to propagating acoustic waves in a formation. In addition, the method comprises building a slowness filter for removing the coherent noise, and applying the slowness filter to the plurality of waveforms.

    Method for Gas Zone Detection Using Sonic Wave Attributes
    2.
    发明申请
    Method for Gas Zone Detection Using Sonic Wave Attributes 审中-公开
    使用声波属性进行气体区域检测的方法

    公开(公告)号：US20140003190A1

    公开(公告)日：2014-01-02

    申请号：US14016134

    申请日：2013-09-02

    申请人： Schlumberger Technology Corporation

    发明人： Peter T. Wu ,  Alain Dumont ,  Pierre Henri Campanac ,  David Linton Johnson

    IPC分类号： G01V1/40

    CPC分类号： G01V1/40 ,  G01V1/48

    摘要： A method for determining on a real time logging while drilling (LWD) basis gas within earth formations traversed by a borehole. Continuous LWD acoustic measurements are recorded and processed including coherent energy and attenuation attributes to detect downhole gas zones and kick during drilling operations.

    摘要翻译： 一种用于在通过钻孔穿过的地层内的钻井（LWD）基础气体的实时测井时确定的方法。 记录和处理连续LWD声学测量，包括相干能量和衰减属性，以检测井下气体区域并在钻井操作期间踢。