Seismic surveying techniques with illumination areas identifiable from primary and higher-order reflections
    1.
    发明授权
    Seismic surveying techniques with illumination areas identifiable from primary and higher-order reflections 有权
    地震测量技术具有可从初级和高阶反射识别的照明区域

    公开(公告)号:US09007870B2

    公开(公告)日:2015-04-14

    申请号:US13485552

    申请日:2012-05-31

    IPC分类号: G01V1/38

    摘要: Techniques are disclosed relating to determining or executing a survey pattern for a marine seismic survey vessel. The survey pattern may be determined based on a determined subsurface illumination area. The subsurface illumination area may be identifiable from primary reflections and higher-order reflections detected by sensors disposed in a sensor streamer configuration that may be towed behind the survey vessel. The sensor streamer configuration may include a plurality of streamers.

    摘要翻译: 公开了关于确定或执行海洋地震勘测船的勘测模式的技术。 勘测模式可以基于确定的地下照明区域来确定。 地下照明区域可以从初级反射和由设置在传感器拖缆结构中的传感器检测到的高阶反射可以被识别,所述传感器拖缆配置可被拖到测量船后面。 传感器流光器配置可以包括多个拖缆。

    Seismic Surveying Techniques with Illumination Areas Identifiable from Primary and Higher-Order Reflections
    2.
    发明申请
    Seismic Surveying Techniques with Illumination Areas Identifiable from Primary and Higher-Order Reflections 有权
    地震测量技术与照明区域可从初级和高阶反射识别

    公开(公告)号:US20130322205A1

    公开(公告)日:2013-12-05

    申请号:US13485552

    申请日:2012-05-31

    IPC分类号: G01V1/38

    摘要: Techniques are disclosed relating to determining or executing a survey pattern for a marine seismic survey vessel. The survey pattern may be determined based on a determined subsurface illumination area. The subsurface illumination area may be identifiable from primary reflections and higher-order reflections detected by sensors disposed in a sensor streamer configuration that may be towed behind the survey vessel. The sensor streamer configuration may include a plurality of streamers.

    摘要翻译: 公开了关于确定或执行海洋地震勘测船的勘测模式的技术。 勘测模式可以基于确定的地下照明区域来确定。 地下照明区域可以从初级反射和由设置在传感器拖缆结构中的传感器检测到的高阶反射可以被识别,所述传感器拖缆配置可被拖到测量船后面。 传感器流光器配置可以包括多个拖缆。

    Method for attenuating particle motion sensor noise in dual sensor towed marine seismic streamers
    3.
    发明申请
    Method for attenuating particle motion sensor noise in dual sensor towed marine seismic streamers 有权
    双传感器牵引海洋地震拖缆中粒子运动传感器噪声衰减的方法

    公开(公告)号:US20080089174A1

    公开(公告)日:2008-04-17

    申请号:US11546448

    申请日:2006-10-11

    IPC分类号: G01V1/38

    摘要: Signals detected by particle motion sensors in a towed dual sensor marine seismic streamer are scaled to match signals detected by pressure sensors in the streamer. The pressure sensor signals and the scaled particle motion sensor signals are combined to generate up-going and down-going pressure wavefield components. The up-going and down-going pressure wavefield components are extrapolated to a position just below a water surface. A first matching filter is applied to the extrapolated down-going pressure wavefield component. The filtered down-going pressure wavefield component is subtracted from the extrapolated up-going pressure wavefield component, generating an up-going pressure wavefield component with attenuated particle motion sensor noise. A second matching filter is applied to the extrapolated up-going pressure wavefield component. The filtered up-going pressure wavefield component is subtracted from the extrapolated down-going pressure wavefield component, generating a down-going pressure wavefield component with attenuated particle motion sensor noise.

    摘要翻译: 在拖曳的双传感器海洋地震拖缆中的颗粒运动传感器检测到的信号被缩放以匹配由拖缆中的压力传感器检测到的信号。 压力传感器信号和缩放的粒子运动传感器信号被组合以产生上行和下行的压力波场分量。 持续和下降的压力波场分量被外推到刚好在水面以下的位置。 将第一匹配滤波器应用于外推的下行压力波场分量。 滤除的下行压力波场分量从外推的上压压力波场分量中减去,产生具有衰减的粒子运动传感器噪声的上行压力波场分量。 第二匹配滤波器被应用于外推的上行压力波场分量。 滤除的上行压力波场分量从外推的下行压力波场分量中减去,产生具有衰减的粒子运动传感器噪声的下行压力波场分量。

    Method for attenuating particle motion sensor noise in dual sensor towed marine seismic streamers
    4.
    发明授权
    Method for attenuating particle motion sensor noise in dual sensor towed marine seismic streamers 有权
    双传感器牵引海洋地震拖缆中粒子运动传感器噪声衰减的方法

    公开(公告)号:US07835225B2

    公开(公告)日:2010-11-16

    申请号:US11546448

    申请日:2006-10-11

    IPC分类号: G01V1/38

    摘要: Signals detected by particle motion sensors in a towed dual sensor marine seismic streamer are scaled to match signals detected by pressure sensors in the streamer. The pressure sensor signals and the scaled particle motion sensor signals are combined to generate up-going and down-going pressure wavefield components. The up-going and down-going pressure wavefield components are extrapolated to a position just below a water surface. A first matching filter is applied to the extrapolated down-going pressure wavefield component. The filtered down-going pressure wavefield component is subtracted from the extrapolated up-going pressure wavefield component, generating an up-going pressure wavefield component with attenuated particle motion sensor noise. A second matching filter is applied to the extrapolated up-going pressure wavefield component. The filtered up-going pressure wavefield component is subtracted from the extrapolated down-going pressure wavefield component, generating a down-going pressure wavefield component with attenuated particle motion sensor noise.

    摘要翻译: 在拖曳的双传感器海洋地震拖缆中的颗粒运动传感器检测到的信号被缩放以匹配由拖缆中的压力传感器检测到的信号。 压力传感器信号和缩放的粒子运动传感器信号被组合以产生上行和下行的压力波场分量。 持续和下降的压力波场分量被外推到刚好在水面以下的位置。 将第一匹配滤波器应用于外推的下行压力波场分量。 滤除的下行压力波场分量从外推的上压压力波场分量中减去,产生具有衰减的粒子运动传感器噪声的上行压力波场分量。 第二匹配滤波器被应用于外推的上行压力波场分量。 滤除的上行压力波场分量从外推的下行压力波场分量中减去,产生具有衰减的粒子运动传感器噪声的下行压力波场分量。