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1. 发明申请

US20060233048A1 Multimode acoustic imaging in cased wells 有权
公开(公告)号：US20060233048A1
公开(公告)日：2006-10-19
申请号：US10566934
申请日：2004-08-02
申请人： Benoit Froelich , Jean-Luc Le Calvez , Emmanuel Legendre , Smaine Zeroug
发明人： Benoit Froelich , Jean-Luc Le Calvez , Emmanuel Legendre , Smaine Zeroug
IPC分类号： G01V1/40
CPC分类号： G01V1/50 , E21B47/0005
摘要： A well casing is insonified with a first acoustic wave in a first mode that may be any mode of a set including: extensional mode, thickness mode, flexural mode. A first echo is received at a first acoustic transducer for receiving, a first signal is produced and a first measurement is extracted from the first signal. The casing is then insonified with a second acoustic wave in a second mode that may be any mode of the set of modes but is distinct from the first mode. A second echo is received at a selected second acoustic transducer for receiving and a second signal is produced. A second measurement is extracted from the second signal. The zone behind the casing of the well is evaluated from a combination of the first measurement and the second measurement.

2. 发明授权

US07522471B2 Multimode acoustic imaging in cased wells 有权
标题翻译：套管井中的多模声学成像
公开(公告)号：US07522471B2
公开(公告)日：2009-04-21
申请号：US10566934
申请日：2004-08-02
申请人： Benoit Froelich , Jean-Luc Le Calvez , Emmanuel Legendre , Smaine Zeroug
发明人： Benoit Froelich , Jean-Luc Le Calvez , Emmanuel Legendre , Smaine Zeroug
IPC分类号： G01V1/40 , G01V1/50
CPC分类号： G01V1/50 , E21B47/0005
摘要： A well casing is insonified with a first acoustic wave in a first mode that may be any mode of a set including: extensional mode, thickness mode, flexural mode. A first echo is received at a first acoustic transducer for receiving, a first signal is produced and a first measurement is extracted from the first signal. The casing is then insonified with a second acoustic wave in a second mode that may be any mode of the set of modes but is distinct from the first mode. A second echo is received at a selected second acoustic transducer for receiving and a second signal is produced. A second measurement is extracted from the second signal. The zone behind the casing of the well is evaluated from a combination of the first measurement and the second measurement.
摘要翻译：使用第一模式的第一声波来增强井套，其可以是包括延伸模式，厚度模式，弯曲模式在内的任何模式。在第一声学换能器处接收第一回波用于接收，产生第一信号并且从第一信号中提取第一测量值。然后，壳体以第二模式的第二声波被增强，其可以是该组模式中的任何模式，但是与第一模式不同。在所选择的第二声换能器处接收第二回波用于接收，并且产生第二信号。从第二信号提取第二测量。从第一测量和第二测量的组合评估井的壳体后面的区域。

3. 发明授权

US07149146B2 Determination of the impedance of a material behind a casing combining two sets of ultrasonic measurements 有权
标题翻译：确定外壳后面的材料的阻抗，结合两组超声波测量
公开(公告)号：US07149146B2
公开(公告)日：2006-12-12
申请号：US11303362
申请日：2005-12-15
申请人： Robert Van Kuijk , Jean-Luc Le Calvez , Benoit Froelich
发明人： Robert Van Kuijk , Jean-Luc Le Calvez , Benoit Froelich
IPC分类号： G01V1/00
CPC分类号： E21B47/0005
摘要： The invention provides a method for estimating an impedance of a material behind a casing wall, wherein the casing is disposed in a borehole drilled in a geological formation, and wherein a borehole fluid is filling said casing, the material being disposed in an annulus between said casing and said geological formation, said method using a logging tool positionable inside the casing and said method comprising: exciting a first acoustic wave in said casing by insonifying said casing with a first pulse, the first acoustic wave having a first mode that may be one of flexural mode or extensional mode; receiving one or more echoes from said first acoustic wave, and producing a first signal; extracting from said first signal a first equation with two acoustic properties unknowns for respectively said material and said borehole fluid; exciting a second acoustic wave in said casing by insonifying said casing with a second pulse, the second acoustic wave having a thickness mode; receiving one or more echoes from said second acoustic wave, and producing a second signal; extracting from said second signal a second equation with said two acoustic properties unknowns; extracting the acoustic properties of said material behind the casing wall from said first and said second equations.
摘要翻译：本发明提供了一种用于估计壳体壁后面的材料的阻抗的方法，其中所述壳体设置在钻探在地质层中的钻孔中，并且其中钻孔流体填充所述壳体，所述材料设置在所述壳体中的环形空间中所述方法使用可定位在所述壳体内的测井工具，所述方法包括：通过使所述壳体以第一脉冲松弛来激励所述壳体中的第一声波，所述第一模式可以是第一模式，所述第一模式可以是一个的弯曲模式或拉伸模式; 从所述第一声波接收一个或多个回波，并产生第一信号; 从所述第一信号提取具有用于分别所述材料和所述钻孔流体的两个声学特性未知数的第一方程; 通过用第二脉冲对所述壳体进行声音来激励所述壳体中的第二声波，所述第二声波具有厚度模式; 从所述第二声波接收一个或多个回波，并产生第二信号; 从所述第二信号提取具有所述两个声学特性未知数的第二方程; 从所述第一和所述第二等式提取所述材料在所述套管壁后面的声学特性。

4. 发明申请

US20060133205A1 Determination of the impedance of a material behind a casing combining two sets of ultrasonic measurements 有权
公开(公告)号：US20060133205A1
公开(公告)日：2006-06-22
申请号：US11303362
申请日：2005-12-15
申请人： Robert Van Kuijk , Jean-Luc Le Calvez , Benoit Froelich
发明人： Robert Van Kuijk , Jean-Luc Le Calvez , Benoit Froelich
IPC分类号： G01V1/40
CPC分类号： E21B47/0005
摘要： The invention provides a method for estimating an impedance of a material behind a casing wall, wherein the casing is disposed in a borehole drilled in a geological formation, and wherein a borehole fluid is filling said casing, the material being disposed in an annulus between said casing and said geological formation, said method using a logging tool positionable inside the casing and said method comprising: exciting a first acoustic wave in said casing by insonifying said casing with a first pulse, the first acoustic wave having a first mode that may be one of flexural mode or extensional mode; receiving one or more echoes from said first acoustic wave, and producing a first signal; extracting from said first signal a first equation with two acoustic properties unknowns for respectively said material and said borehole fluid; exciting a second acoustic wave in said casing by insonifying said casing with a second pulse, the second acoustic wave having a thickness mode; receiving one or more echoes from said second acoustic wave, and producing a second signal; extracting from said second signal a second equation with said two acoustic properties unknowns; extracting the acoustic properties of said material behind the casing wall from said first and said second equations.

5. 发明申请

US20080189041A1 Determining the Impedance of Material Behind a Casing in a Borehole 有权
标题翻译：确定井筒中套管后面的材料阻抗
公开(公告)号：US20080189041A1
公开(公告)日：2008-08-07
申请号：US11574905
申请日：2005-09-08
申请人： Benoit Froelich , Emmanuel Legendre
发明人： Benoit Froelich , Emmanuel Legendre
IPC分类号： G01V1/48
CPC分类号： G01V1/48
摘要： A method for estimating an impedance of a material behind a casing wall in a borehole, the method comprises exciting (602) the casing wall with an acoustic pulse, and measuring (603) an experimental acoustic waveform (W) reflected from the casing wall. The method further comprises initializing (600) an impedance parameter (Zin), computing (601) an inverse casing response (Rcas−1) as function of the impedance parameter, and deconvoluting (604) the experimental acoustic waveform with the inverse casing response to obtain a transducer (T). An iterative loop (605, 606, 607) is performed, comprising the computing of an inverse casing response and the deconvoluting of the experimental acoustic waveform by varying (607) the impedance parameter until the transducer response becomes compact (605, 606) in the time domain. The estimated impedance (Zcem) is obtained (606) from the impedance parameter when the transducer response is compact.
摘要翻译：一种用于估计钻孔中的壳体壁后面的材料的阻抗的方法，所述方法包括用声学脉冲激励（602）所述壳体壁，并且测量（603）从所述壳体壁反射的实验声波形（W）。该方法还包括：初始化（600）阻抗参数（Zin），计算（601）作为阻抗参数的函数的反壳体响应（R＆lt; C＆gt;＆lt; SUP> -1）并用反壳体反应解卷积（604）实验声波形，得到换能器（T）。执行迭代循环（605,606,607），其包括通过改变（607）阻抗参数直到传感器响应变得紧凑（605,606）来计算反壳体响应和解卷积实验声波形时域。当传感器响应紧凑时，从阻抗参数获得估计阻抗（Zcem）（606）。

6. 发明授权

US08767506B2 Using higher order harmonics to determine acoustic impedance of material behind borehole casings 有权
标题翻译：使用更高阶谐波来确定钻孔套管后面的材料的声阻抗
公开(公告)号：US08767506B2
公开(公告)日：2014-07-01
申请号：US13330676
申请日：2011-12-20
申请人： Benoit Froelich , Andrew J. Hayman , Kenneth K. Liang
发明人： Benoit Froelich , Andrew J. Hayman , Kenneth K. Liang
IPC分类号： G01V1/30 , G01V1/50
CPC分类号： G01V1/306 , E21B47/0005 , G01V1/50
摘要： An acoustic logging tool emits a wideband acoustic pulse toward an inside surface of a borehole casing and an acoustic response is received. The acoustic response is analyzed at one or more higher order harmonics of the thickness mode resonance of the casing to determine the acoustic impedance of the material behind the casing.
摘要翻译：声学测井工具朝向钻孔套管的内表面发射宽带声脉冲，并且接收声响应。在壳体的厚度模式谐振的一个或多个更高次谐波处分析声响应，以确定壳体后面的材料的声阻抗。

7. 发明授权

US08605548B2 Bi-directional wireless acoustic telemetry methods and systems for communicating data along a pipe 有权
标题翻译：用于沿管道传送数据的双向无线声学遥测方法和系统
公开(公告)号：US08605548B2
公开(公告)日：2013-12-10
申请号：US12613548
申请日：2009-11-06
申请人： Benoit Froelich
发明人： Benoit Froelich
IPC分类号： E21B47/16
CPC分类号： E21B47/16
摘要： A bi-directional acoustic telemetry system is presented for communicating data and/or control signals between a first modem and a second modem along tubing. The system includes a communication channel defined by the tubing, a transducer of the first modem, and a transducer of the second modem. The transducer of each modem are configured to transmit and receive data and/or control signals, and are further configured to electrically communicate with a power amplifier characterized by an output impedance Zs and a signal conditioning amplifier characterized by an input impedance Zr. The system also includes a reciprocal response along the communication channel between the output impedance Zs and the input impedance Zr.
摘要翻译：呈现双向声学遥测系统，用于沿着管道在第一调制解调器和第二调制解调器之间传送数据和/或控制信号。该系统包括由管道，第一调制解调器的换能器和第二调制解调器的换能器定义的通信通道。每个调制解调器的换能器被配置为发送和接收数据和/或控制信号，并且还被配置为与由输出阻抗Zs和由输入阻抗Zr表征的信号调节放大器特征的功率放大器电通信。该系统还包括沿着输出阻抗Zs和输入阻抗Zr之间的通信通道的互逆响应。

8. 发明授权

US5969263A Ultrasonic fluid counter for attenuating parasitic ultrasonic waves 失效
标题翻译：超声波流体计数器用于衰减寄生超声波
公开(公告)号：US5969263A
公开(公告)日：1999-10-19
申请号：US12313
申请日：1998-01-23
申请人： Patrice Ligneul , Philippe Hocquet , Benoit Froelich
发明人： Patrice Ligneul , Philippe Hocquet , Benoit Froelich
IPC分类号： G01F1/66
CPC分类号： G01F1/662
摘要： The invention concerns an ultrasonic fluid counter including at least two ultrasonic transducers collectively defining an ultrasonic measuring path and emitting and receiving ultrasonic waves in the fluid along said ultrasonic measuring path according to at least one ultrasonic frequency, wherein attenuation means for attenuating parasitic ultrasonic waves generated outside said fluid counter and transmitted by the fluid according to the ultrasonic frequency or frequencies are associated with the fluid counter.
摘要翻译：本发明涉及一种包括至少两个超声波换能器的超声波流体计数器，其共同限定超声波测量路径，并且根据至少一个超声频率沿着所述超声波测量路径在流体中发射和接收超声波，其中衰减装置用于衰减产生的寄生超声波所述流体计数器之外并且由流体根据超声频率或频率传输的流体与流体计数器相关联。

9. 发明申请

US20060133204A1 Method to measure and locate a fluid communication pathway in a material behind a casing 审中-公开
标题翻译：在套管后面的材料中测量和定位流体连通路径的方法
公开(公告)号：US20060133204A1
公开(公告)日：2006-06-22
申请号：US11298357
申请日：2005-12-09
申请人： Benoit Froelich
发明人： Benoit Froelich
IPC分类号： G01V1/00
CPC分类号： E21B47/0005 , E21B47/101
摘要： The invention provides a method for measuring and locating a fluid communication pathway in a material behind a casing wall, wherein said material is disposed in an annulus between said casing and a geological formation, and said method comprising: measuring a set of parameters of the material behind the casing within a range of radius, depths and azimuthal angles; defining sections comprising a sub-set of parameters wherein said sub-set of parameters is taken in said set of parameter for a given range of radius, depths and azimuthal angles included in said range of radius, depths and azimuthal angles; defining for each section a first limit zone and a second limit zone in frontier of said given range; determining among said sections the ones that comprise a continuous fluid communication pathway from said first limit zone to said second limit zone, said sections being renamed in retained sections; determining from said continuous fluid communication pathway an area or a width of pathway versus depth for each of said retained sections; extracting a fluid communication index versus depth for the material behind the casing, wherein said fluid communication index versus depth: depends of said area or width for retained sections and, is equal to zero for non retained sections; deducing from said fluid communication index the existence and location of fluid communication pathway in said material behind said casing wall.
摘要翻译：本发明提供了一种用于测量和定位在壳体壁后面的材料中的流体连通路径的方法，其中所述材料设置在所述壳体和地质层之间的环形空间中，并且所述方法包括：测量材料的一组参数在半径，深度和方位角范围内的套管后面; 定义包括参数子集的部分，其中在所述半径，深度和方位角范围中包括的给定范围的半径，深度和方位角的所述参数集中取所述参数子集; 为每个部分定义所述给定范围的前沿的第一限制区域和第二限制区域; 在所述部分中确定包括从所述第一限制区域到所述第二限制区域的连续流体连通路径的区段，所述区段被重命名为保留区段; 从所述连续流体连通路径确定每个所述保留部分的路径相对于深度的面积或宽度; 提取所述套管后面的材料的流体通信指数与深度的关系，其中所述流体通信指数对深度：取决于所述保留部分的所述面积或宽度，并且对于非保留部分等于零; 从所述流体连通指数推断在所述壳体壁后面的所述材料中的流体连通路径的存在和位置。

10. 发明申请

US20060109141A1 Noise attenuation apparatus for borehole telemetry 有权
标题翻译：井眼遥测噪声衰减装置
公开(公告)号：US20060109141A1
公开(公告)日：2006-05-25
申请号：US10524581
申请日：2003-08-19
申请人： Songming Huang , Franck Monmont , Benoit Froelich
发明人： Songming Huang , Franck Monmont , Benoit Froelich
IPC分类号： G01V3/00
CPC分类号： E21B47/18 , G01V11/002
摘要： A surface mud pipeline system is described with a mechanical acoustic filter (1245) tuned to a predetermined frequency band so as to attenuate pump noise (132) within this band. The filter can be combined with a Venturi constriction to provide enhanced attenuation and is used to improve signal transmission of a mud pulse telemetry system (113-2).
摘要翻译：使用被调谐到预定频带的机械声学滤波器（1245）描述表面泥浆管道系统，以便衰减该频带内的泵浦噪声（132）。滤波器可与文氏管收缩组合以提供增强的衰减，并用于改善泥浆脉冲遥测系统（113-2）的信号传输。

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