SUPPRESSING 4D-NOISE BY WEIGHTED STACKING OF SIMULTANEOUSLY ACQUIRED WAVE-FIELDS
    1.
    发明申请
    SUPPRESSING 4D-NOISE BY WEIGHTED STACKING OF SIMULTANEOUSLY ACQUIRED WAVE-FIELDS 有权
    通过加权堆叠同时获取的波场来抑制4D噪声

    公开(公告)号:US20150168575A1

    公开(公告)日:2015-06-18

    申请号:US14369039

    申请日:2012-12-17

    Abstract: A method for generating an image of a subsurface feature, comprises providing seismic data containing information about the feature, comprising i) a first dataset comprising a first up-going wave-field and a first down-going wave-field, ii) a second dataset comprising a second up-going wave-field and a second down-going wave-field, wherein the second dataset is collected at a time that is later than the first dataset by a time interval, creating an up-going 4D difference dataset U by subtracting one of the first and second up-going wave-fields from the other and creating a down-going 4D difference dataset D by subtracting one of the first and second down-going wave-fields from the other, creating a weighting function W that is a function of the similarity of the difference datasets, and creating an image of the feature by generating a 4D similarity stack, where the 4D similarity stack is defined as (U+D)*W/2.

    Abstract translation: 一种用于产生地下特征的图像的方法,包括提供包含关于所述特征的信息的地震数据,所述地震数据包括i)包括第一上行波场和第一下行波场的第一数据集,ii)第二 数据集,其包括第二上行波场和第二下行波场,其中所述第二数据集在比所述第一数据集晚的时间以时间间隔被收集,从而创建一个前进的4D差分数据集U 通过从另一个中减去第一和第二前进波场中的一个并通过从另一个减去第一和第二下行波场中的一个来创建下行4D差分数据集D.创建加权函数W 这是差分数据集的相似度的函数,并且通过生成4D相似性堆栈来创建特征的图像,其中4D相似性堆栈被定义为(U + D)* W / 2。

    Detecting broadside acoustic signals with a fiber optical distrubuted acoustic sensing (DAS) assembly
    2.
    发明授权
    Detecting broadside acoustic signals with a fiber optical distrubuted acoustic sensing (DAS) assembly 有权
    用纤维光学分散声学传感(DAS)组件检测宽侧声学信号

    公开(公告)号:US09494461B2

    公开(公告)日:2016-11-15

    申请号:US14365231

    申请日:2012-12-13

    CPC classification number: G01H9/006 G01H9/004 G01V1/226 G01V1/40

    Abstract: A distributed fiber optic acoustic sensing system comprises an elongate body having an outer surface, an optical fiber disposed on the outer surface at a first predetermined wrap angle, and light transmitting and receiving means optically connected to the fiber for. The elongate body may include at least one substantially flat face, and/or a layer of swellable elastomer surrounding the body, and/or an outer elastomeric tube surrounding the elastomer layer. There may be at least one sensor pad disposed in the outer layer, the sensor pad comprising a stiffener and at least one longitudinal fiber affixed thereto or embedded therein. There may be a body of protective material surrounding the tube, which may have an outer surface that includes at least one substantially flat face and at least one sensor pad disposed in the body.

    Abstract translation: 分布式光纤声学感测系统包括具有外表面的细长主体,以第一预定包角设置在外表面上的光纤,以及光纤连接到光纤的光发射和接收装置。 细长主体可以包括至少一个基本平坦的表面,和/或围绕主体的可膨胀弹性体层,和/或围绕弹性体层的外部弹性体管。 可以在外层中设置至少一个传感器垫,传感器垫包括加强件和至少一个固定到其上的纵向纤维或嵌入其中。 可以存在围绕管的保护材料体,其可以具有包括至少一个基本上平坦的表面的外表面和设置在主体中的至少一个传感器垫。

    Suppressing 4D-noise by weighted stacking of simultaneously acquired wave-fields
    5.
    发明授权
    Suppressing 4D-noise by weighted stacking of simultaneously acquired wave-fields 有权
    通过同时获取的波场的加权堆叠抑制4D噪声

    公开(公告)号:US09581709B2

    公开(公告)日:2017-02-28

    申请号:US14369039

    申请日:2012-12-17

    Abstract: A method for generating an image of a subsurface feature, comprises providing seismic data containing information about the feature, comprising i) a first dataset comprising a first up-going wave-field and a first down-going wave-field, ii) a second dataset comprising a second up-going wave-field and a second down-going wave-field, wherein the second dataset is collected at a time that is later than the first dataset by a time interval, creating an up-going 4D difference dataset U by subtracting one of the first and second up-going wave-fields from the other and creating a down-going 4D difference dataset D by subtracting one of the first and second down-going wave-fields from the other, creating a weighting function W that is a function of the similarity of the difference datasets, and creating an image of the feature by generating a 4D similarity stack, where the 4D similarity stack is defined as (U+D)*W/2.

    Abstract translation: 一种用于产生地下特征的图像的方法,包括提供包含关于所述特征的信息的地震数据,所述地震数据包括i)包括第一上行波场和第一下行波场的第一数据集,ii)第二 数据集,其包括第二上行波场和第二下行波场,其中所述第二数据集在比所述第一数据集晚的时间以时间间隔被收集,从而创建一个前进的4D差分数据集U 通过从另一个中减去第一和第二前进波场中的一个并通过从另一个减去第一和第二下行波场中的一个来创建下行4D差分数据集D.创建加权函数W 这是差分数据集的相似度的函数,并且通过生成4D相似性堆栈来创建特征的图像,其中4D相似性堆栈被定义为(U + D)* W / 2。

    DETECTING BROADSIDE ACOUSTIC SIGNALS WITH A FIBER OPTICAL DISTRUBUTED ACOUSTIC SENSING (DAS) ASSEMBLY
    6.
    发明申请
    DETECTING BROADSIDE ACOUSTIC SIGNALS WITH A FIBER OPTICAL DISTRUBUTED ACOUSTIC SENSING (DAS) ASSEMBLY 有权
    用纤维光学分布式声学传感(DAS)组件检测广播声音信号

    公开(公告)号:US20140345388A1

    公开(公告)日:2014-11-27

    申请号:US14365231

    申请日:2012-12-13

    CPC classification number: G01H9/006 G01H9/004 G01V1/226 G01V1/40

    Abstract: A distributed fiber optic acoustic sensing system comprises an elongate body having an outer surface, an optical fiber disposed on the outer surface at a first predetermined wrap angle, and light transmitting and receiving means optically connected to the fiber for. The elongate body may include at least one substantially flat face, and/or a layer of swellable elastomer surrounding the body, and/or an outer elastomeric tube surrounding the elastomer layer. There may be at least one sensor pad disposed in the outer layer, the sensor pad comprising a stiffener and at least one longitudinal fiber affixed thereto or embedded therein. There may be a body of protective material surrounding the tube, which may have an outer surface that includes at least one substantially flat face and at least one sensor pad disposed in the body.

    Abstract translation: 分布式光纤声学感测系统包括具有外表面的细长主体,以第一预定包角设置在外表面上的光纤,以及光纤连接到光纤的光发射和接收装置。 细长主体可以包括至少一个基本平坦的表面,和/或围绕主体的可膨胀弹性体层,和/或围绕弹性体层的外部弹性体管。 可以在外层中设置至少一个传感器垫,传感器垫包括加强件和至少一个固定到其上的纵向纤维或嵌入其中。 可以存在围绕管的保护材料体,其可以具有包括至少一个基本上平坦的表面的外表面和设置在主体中的至少一个传感器垫。

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