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1.发明授权Method for time picking and orientation of three-component seismic signals in wells 有权井中三分量地震信号的时间选择和取向方法公开(公告)号：US08898020B2
公开(公告)日：2014-11-25
申请号：US13201010
申请日：2010-02-10
CPC分类号： G01V1/42
摘要： A method, having application to petroleum exploration or production, for picking the arrival time of seismic waves and use thereof for orienting the components of a multi-component sensor. After acquisition of seismic data using a VSP type method, with a multi-component sensor, a module signal is constructed by calculating the square root of the sum of the squares of at least two orthogonal seismic components. Arrival times of a direct seismic wave are then picked on an amplitude extremum of this module signal. Based on this picking, the seismic components can then be oriented in a unique reference frame whatever the depth of the sensor. A time window is defined on either side of the picked arrival times and the azimuthal direction is determined by maximizing the energy of the horizontal components within this time window. Finally, the three components are oriented in a reference frame defined with respect to the azimuthal direction, which is identical for each depth.
摘要翻译： 一种应用于石油勘探或生产的方法，用于拾取地震波的到达时间及其用于定向多分量传感器的部件的方法。 在使用VSP型方法获取地震数据之后，利用多分量传感器，通过计算至少两个正交地震分量的平方和的平方根来构建模块信号。 然后在该模块信号的振幅极值上拾取直接地震波的到达时间。 基于这种选择，无论传感器的深度如何，地震分量然后可以被定向在唯一的参考系中。 在所选到达时间的任一侧定义时间窗口，并且通过在该时间窗内最大化水平分量的能量来确定方位方向。 最后，三个组件定向在相对于方位角方向限定的参考框架中，对于每个深度而言都是相同的。
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2.发明申请METHOD FOR TIME PICKING AND ORIENTATION OF THREE-COMPONENT SEISMIC SIGNALS IN WELLS 失效时间采集和方位三维组分地震信号在井中的方法公开(公告)号：US20120046871A1
公开(公告)日：2012-02-23
申请号：US13201010
申请日：2010-02-02
CPC分类号： G01V1/42
摘要： A method, having application to petroleum exploration or production, for picking the arrival time of seismic waves and use thereof for orienting the components of a multi-component sensor. After acquisition of seismic data using a VSP type method, with a multi-component sensor, a module signal is constructed by calculating the square root of the sum of the squares of at least two orthogonal seismic components. Arrival times of a direct seismic wave are then picked on an amplitude extremum of this module signal. Based on this picking, the seismic components can then be oriented in a unique reference frame whatever the depth of the sensor. A time window is defined on either side of the picked arrival times and the azimuthal direction is determined by maximizing the energy of the horizontal components within this time window. Finally, the three components are oriented in a reference frame defined with respect to the azimuthal direction, which is identical for each depth.
摘要翻译： 一种应用于石油勘探或生产的方法，用于拾取地震波的到达时间及其用于定向多分量传感器的部件的方法。 在使用VSP型方法获取地震数据之后，利用多分量传感器，通过计算至少两个正交地震分量的平方和的平方根来构建模块信号。 然后在该模块信号的振幅极值上拾取直接地震波的到达时间。 基于这种选择，无论传感器的深度如何，地震分量然后可以被定向在唯一的参考系中。 在所选到达时间的任一侧定义时间窗口，并且通过在该时间窗内最大化水平分量的能量来确定方位方向。 最后，三个组件定向在相对于方位角方向限定的参考框架中，对于每个深度而言都是相同的。
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公开(公告)号：US6089345A
公开(公告)日：2000-07-18
申请号：US59352
申请日：1998-04-14
摘要： A well tool in accordance with the invention comprises an attenuation device which attenuates tube waves associated with an elastic wave emission and/or reception set (1, 12). The attenuation device comprises a bubble generator (2) which releases into the well a gas not readily soluble in the well fluid, slightly overpressured in relation to the hydrostatic pressure, in the form of calibrated bubbles which greatly attenuate the parasitic tube waves. The attenuation device is placed above or below the elastic wave emission and/or reception set having a plurality of pickups whose signals are acquired by a local electronic module (14) and/or a source of elastic waves such as a vibrator. A bubble trap (17) is preferably associated with the bubble generator (2) in order to limit the volume of gas to be generated in situ. The invention is applicable to VSP type seismic prospecting and acoustic logging.
摘要翻译： 根据本发明的井工具包括衰减装置，其衰减与弹性波发射和/或接收装置（1,12）相关联的管波。 衰减装置包括气泡发生器（2），该气泡发生器（2）以校准气泡的形式向井中释放不易溶于井流体的气体，相对于流体静力压力稍微超压，这大大衰减了寄生管波。 衰减装置放置在具有多个拾取器的弹性波发射和/或接收装置的上方或下方，该拾取器的信号由本地电子模块（14）和/或诸如振动器的弹性波源获取。 气泡阱（17）优选地与气泡发生器（2）相关联，以便限制原位产生的气体的体积。 本发明适用于VSP型地震勘探和声波测井。
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公开(公告)号：US06807489B2
公开(公告)日：2004-10-19
申请号：US10285630
申请日：2002-11-01
IPC分类号： G01V128
CPC分类号： G01V1/42
摘要： A method for absolute preserved amplitude processing of data obtained by seismic prospecting known as VSP. The method comprises reception, by seismic receivers (R) arranged in a well and coupled with the surrounding formations, of seismic waves generated by a source (S) and reaching directly the receivers (direct or downgoing waves DW) or after reflections on discontinuities (D) (upgoing waves UW). The method has an application of precise measurement of the amplitudes of reflected and diffracted seismic events on monocomponent or tricomponent VSP data, in addition to conventional seismic wave propagation time and velocity measurements.
摘要翻译： 一种用于通过称为VSP的地震勘探获得的数据的绝对幅度幅度处理方法。 该方法包括由布置在井中并与周围地层耦合的地震接收器（R）接收由源（S）产生的地震波并且直接到达接收器（直接或下行波DW）或在不连续点上的反射之后 D）（上行波UW）。 除了传统的地震波传播时间和速度测量之外，该方法还应用于单分量或三分量VSP数据上的反射和衍射地震事件振幅的精确测量。
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