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    • 2. 发明授权
    • Method for acoustic imaging of the earth's subsurface using non-linear signal generation and detection
    • 使用非线性信号产生和检测对地球地下声学成像的方法
    • US09316755B2
    • 2016-04-19
    • US13667732
    • 2012-11-02
    • Acoustic Zoom, Inc.
    • Jacques Y. GuignéNicholas G. Pace
    • G01V1/00G01V1/28
    • G01V1/005G01V2210/125G01V2210/127G01V2210/16G01V2210/55G01V2210/588
    • A method for seismic surveying includes disposing a plurality of seismic sensors in a selected pattern above an area of the Earth's subsurface. A seismic energy source is repeatedly actuated proximate the seismic sensors. A signal used to actuate the source comprises a linear chirp having a starting frequency and an ending frequency less than twice the starting frequency. Recorded signals are processed to generate an image corresponding to at least one point in the subsurface, the processing includes stacking recordings from each sensor for a plurality of actuations of the source, cross correlating the stacked signals with an expected signal generated by non linearities in the subsurface and beam steering a response of the seismic sensors such that the at least one point is equivalent to a focal point of a response of the plurality of sensors.
    • 一种用于地震测量的方法包括在地球的地下区域上方以选定的模式布置多个地震传感器。 地震能量源在地震传感器附近被重复地致动。 用于致动源的信号包括具有小于起始频率的两倍的起始频率和结束频率的线性啁啾。 处理记录的信号以产生对应于地下至少一个点的图像,该处理包括从每个传感器堆叠用于多个源的致动的记录,将堆叠的信号与由非线性产生的预期信号相互关联 地下和波束转向地震传感器的响应,使得至少一个点等效于多个传感器的响应的焦点。
    • 4. 发明授权
    • Determining acceptability of sensor locations used to perform a seismic survey
    • 确定用于执行地震勘测的传感器位置的可接受性
    • US07499374B2
    • 2009-03-03
    • US11638877
    • 2006-12-14
    • Ralf Ferber
    • Ralf Ferber
    • G01V1/20
    • G01V1/20G01V2200/14G01V2210/16
    • Method for determining acceptability of sensor locations used to perform a seismic survey. In one implementation, the method includes obtaining a first set of reference data, generating a first output trace from a second set of reference data estimated from the first set of reference data at a plurality of planned sensor locations, generating a second output trace from a third set of reference data estimated at a plurality of actual sensor locations and comparing the second output trace with the first output trace to determine whether the variation between the second output trace and the first output trace is less than a predetermined value.
    • 用于确定用于执行地震勘测的传感器位置的可接受性的方法。 在一个实现中,该方法包括获得第一组参考数据,从在多个计划的传感器位置处的第一组参考数据估计的第二组参考数据生成第一输出轨迹,从第 在多个实际传感器位置处估计的第三组参考数据,并将第二输出轨迹与第一输出迹线进行比较,以确定第二输出轨迹和第一输出轨迹之间的变化是否小于预定值。