Methods and apparatus for imaging a subsurface fracture
    1.
    发明授权
    Methods and apparatus for imaging a subsurface fracture 有权
    用于成像地下骨折的方法和装置

    公开(公告)号:US06839633B1

    公开(公告)日:2005-01-04

    申请号:US10461617

    申请日:2003-06-13

    IPC分类号: G01V1/28 G01V1/50

    CPC分类号: G01V1/286 G01V1/50

    摘要: A method and apparatus for imaging subsurface fractures using an ST plane for quick looks and quality checks at the wellsite. Incident angles of impinging acoustic waves with respect to receivers are estimated from actual and apparent slowness, and the position of the fracture is estimated from the travel time and incident angle. The fracture can be imaged by plotting values from the ST plane onto the position of the fracture.

    摘要翻译: 一种使用ST平面对地下裂缝进行成像的方法和装置,用于在井场进行快速查看和质量检查。 从实际和表观的慢度估计入射声波相对于接收机的入射角,根据行进时间和入射角估计断裂位置。 可以通过将ST平面的值绘制到骨折的位置来成像骨折。

    Methods and systems for processing acoustic waveform data
    2.
    发明授权
    Methods and systems for processing acoustic waveform data 有权
    用于处理声波形数据的方法和系统

    公开(公告)号:US07672193B2

    公开(公告)日:2010-03-02

    申请号:US12116934

    申请日:2008-05-07

    申请人: Satoshi Basaki

    发明人: Satoshi Basaki

    IPC分类号: G01V1/00

    CPC分类号: G01V1/48

    摘要: Methods and systems for taking acoustic measurements related to subterranean formations. The methods and systems provide extracting a portion of the acoustic measurements based on predetermined parameters for selecting reflected arrival waves in the acoustic measurements; generating time projection of the extracted acoustic measurements versus borehole depth; and generating an indication or imaging of acoustic reflectors in the formation based on the time projected acoustic measurements.

    摘要翻译: 用于采取与地下地层相关的声学测量的方法和系统。 所述方法和系统提供基于用于在声学测量中选择反射到达波的预定参数来提取声学测量的一部分; 产生提取的声学测量与钻孔深度的时间投影; 以及基于所投影的声学测量时间,在地层中产生声反射器的指示或成像。