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    ACOUSTIC WAVE IMAGING OF FORMATIONS
    1.
    发明公开
    ACOUSTIC WAVE IMAGING OF FORMATIONS 审中-公开
    SCHALLWELLENBILDGEBUNG VON FORMATIONEN

    公开(公告)号：EP3060754A4

    公开(公告)日：2017-06-28

    申请号：EP14856371

    申请日：2014-10-21

    Applicant: BAKER HUGHES INC

    Inventor： MEKIC NATASA ,  PATTERSON DOUGLAS J

    IPC: E21B47/00 ,  G01V1/28 ,  G01V1/40 ,  G01V1/50

    CPC classification number: G01V1/44 ,  G01V1/284 ,  G01V1/50

    Abstract: An embodiment of a method of estimating characteristics of an earth formation includes: disposing an acoustic tool in a borehole in an earth formation, the acoustic tool including an acoustic multipole transmitter and at least one multipole acoustic receiver; transmitting acoustic signals into the borehole, the acoustic signals generating at least one acoustic body wave that radiates away from the borehole into a far-field formation region; measuring reflected signals including body waves reflected from reflective boundaries in the far-field formation region; identifying a reflective boundary in the formation and reflection attributes associated with the reflective boundary; and estimating at least one of a thickness, distance and a lateral extent of a hydrocarbon formation feature based on the reflected signals and the reflection attributes.

    Abstract translation: 一种估计地球地层特征的方法的实施例包括：将声学工具布置在地层中的钻孔中，所述声学工具包括声学多极发射器和至少一个多极声学接收器; 将声学信号传输到钻孔中，所述声学信号产生从钻孔辐射到远场形成区域的至少一个声学主体波; 测量包括远场形成区域中从反射边界反射的体波的反射信号; 识别与反射边界相关联的形成和反射属性中的反射边界; 以及基于反射信号和反射属性来估计烃形成特征的厚度，距离和横向范围中的至少一个。

    FRACTURE EVALUATION THROUGH CASED BOREHOLES
    3.
    发明公开
    FRACTURE EVALUATION THROUGH CASED BOREHOLES 审中-公开
    BRUCHBEWERTUNG DURCH VERROHRTEBOHRLÖCHER

    公开(公告)号：EP3014060A4

    公开(公告)日：2017-02-08

    申请号：EP14818165

    申请日：2014-06-20

    Applicant: BAKER HUGHES INC

    Inventor： MEKIC NATASA ,  PATTERSON DOUGLAS J

    IPC: E21B47/00 ,  G01V1/40 ,  G01V1/48

    CPC classification number: E21B47/101 ,  E21B43/26

    Abstract: A method of estimating fractures in an earth formation includes: disposing an acoustic tool in a cased borehole in an earth formation, the acoustic tool including a multipole acoustic transmitter and an acoustic receiver; transmitting an acoustic signal into the borehole; measuring deep shear wave (DSW) signals generated from shear body waves reflected in the formation in a far-field region of the formation around the borehole; and estimating at least a location and an orientation of a fracture in the formation based on the DSW signals.

    Abstract translation: 估计地层中的断裂的方法包括：将声学工具设置在地层中的套管井眼中，所述声学工具包括多极声发射器和声学接收器; 将声信号传输到井眼中; 测量由围绕钻孔的地层的远场区域中的地层中反射的剪切体波产生的深度剪切波（DSW）信号; 并且基于DSW信号来估计地层中断裂的位置和取向至少。

    METHOD AND APPARATUS FOR DETERMINING RADIAL SHEAR VELOCITY VARIATION FROM DIPOLE ACOUSTIC LOGGING
    4.
    发明公开
    METHOD AND APPARATUS FOR DETERMINING RADIAL SHEAR VELOCITY VARIATION FROM DIPOLE ACOUSTIC LOGGING 有权
    方法和设备，用于确定径向变化剪切声探测DIPOL的速度

    公开(公告)号：EP2438473A4

    公开(公告)日：2014-08-27

    申请号：EP10783817

    申请日：2010-05-26

    Applicant: BAKER HUGHES INC

    Inventor： TANG XIAO MING ,  PATTERSON DOUGLAS J

    IPC: G01V1/50

    CPC classification number: G01V1/50 ,  G01V2210/626

    Abstract: A radial shear velocity profile of an earth formation is obtained by using dipole and/or cross-dipole measurements. The non-uniqueness in the inversion is addressed by using a constraint based on the fact that high-frequency dipole shear waves are mostly sensitive to the near-borehole shear velocity.

    Abstract translation: 地层的径向剪切速度分布是通过使用偶极子和/或交叉偶极测量获得。 在反演的非唯一性是通过使用基于factthat高频偶极横波的约束是寻址到近井眼剪切速度大多敏感。

    RADON MIGRATION OF ACOUSTIC DATA
    9.
    发明申请
    RADON MIGRATION OF ACOUSTIC DATA 审中-公开
    RADON移动数据

    公开(公告)号：WO2012040328A3

    公开(公告)日：2012-07-19

    申请号：PCT/US2011052552

    申请日：2011-09-21

    Applicant: BAKER HUGHES INC ,  BOLSHAKOV ALEXEI ,  TANG XIAO MING ,  PATTERSON DOUGLAS J ,  DUBINSKY VLADIMIR

    Inventor： BOLSHAKOV ALEXEI ,  TANG XIAO MING ,  PATTERSON DOUGLAS J ,  DUBINSKY VLADIMIR

    IPC: G01V1/48 ,  E21B47/00 ,  G01V1/44 ,  G06F19/00

    CPC classification number: G01V1/28 ,  E21B47/0002 ,  E21B47/101 ,  G01V2210/244 ,  G01V2210/40 ,  G01V2210/46 ,  G01V2210/51

    Abstract: Disclosed is a method implemented by a processor for imaging a formation penetrated by a borehole. The method includes: obtaining acoustic data in a depth-time domain using an acoustic downhole tool disposed at a depth in the borehole, the acoustic downhole tool having an acoustic source and an acoustic receiver; transforming the acoustic data in the depth-time domain into a Radon domain using a Radon transform; filtering the acoustic data in the Radon domain to increase a signal of interest in the acoustic data in the Radon domain; determining a location of a point in the formation that reflected acoustic energy emitted from the acoustic source to the acoustic receiver, the location of the point being represented in the Radon domain; and inverting the location of the point represented in the Radon domain into a radius-depth domain to image the formation.

    Abstract translation: 公开了一种由处理器实现的用于对由钻孔穿透的地层进行成像的方法。 该方法包括：使用设置在钻孔深度处的声学井下工具在深度 - 时间域中获得声学数据，声学井下工具具有声源和声学接收器; 使用Radon变换将深度时域中的声学数据转换成Radon域; 过滤Radon域中的声学数据以增加Radon域中的声学数据中感兴趣的信号; 确定地层中反映从声源发射到声接收器的声能的点的位置，该点在Radon域中的位置; 并将Radon域中表示的点的位置反转为半径深度域以对地层进行成像。

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