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    • 3. 发明授权
    • Bi-directional wireless acoustic telemetry methods and systems for communicating data along a pipe
    • 用于沿管道传送数据的双向无线声学遥测方法和系统
    • US08605548B2
    • 2013-12-10
    • US12613548
    • 2009-11-06
    • Benoit Froelich
    • Benoit Froelich
    • E21B47/16
    • E21B47/16
    • 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.
    • 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。
    • 6. 发明申请
    • Method to measure and locate a fluid communication pathway in a material behind a casing
    • 在套管后面的材料中测量和定位流体连通路径的方法
    • US20060133204A1
    • 2006-06-22
    • US11298357
    • 2005-12-09
    • Benoit Froelich
    • Benoit Froelich
    • G01V1/00
    • E21B47/0005E21B47/101
    • 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.
    • 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。
    • 9. 发明申请
    • ACOUSTIC TRANSCEIVER WITH ADJACENT MASS GUIDED BY MEMBRANES
    • 具有由膜引导的相似质量的声学收发器
    • US20110149687A1
    • 2011-06-23
    • US12644054
    • 2009-12-22
    • Christophe RayssiguierBenoit Froelich
    • Christophe RayssiguierBenoit Froelich
    • E21B47/16
    • E21B47/14E21B47/011E21B47/16G10K11/004Y10T29/49005
    • An acoustic transceiver assembly including a housing, an oscillator, and at least one membrane. The housing has at least one inner wall defining a cavity. The housing also has a first end and a second end defining an axis of the acoustic transceiver assembly. The oscillator is provided in the cavity. The oscillator is provided with a transducer element, and a backing mass acoustically coupled to the transducer element. The at least one membrane extends outward from the backing mass to support at least the backing mass within the cavity. The at least one membrane is flexible in an axial direction parallel to the axis of the acoustic transceiver assembly to permit the backing mass to oscillate in the axial direction, and rigid in a transverse direction to restrict lateral movement of the backing mass relative to the housing.
    • 一种声收发器组件,包括壳体,振荡器和至少一个膜。 壳体具有限定空腔的至少一个内壁。 壳体还具有限定声收发机组件的轴线的第一端和第二端。 振荡器设置在空腔中。 振荡器设置有换能器元件和声耦合到换能器元件的背衬质量。 至少一个膜从背衬材料向外延伸,以至少支撑在腔内的背衬质量。 所述至少一个膜在平行于声收发器组件的轴线的轴向上是柔性的,以允许背衬质量在轴向方向上振动,并且在横向上是刚性的,以限制背衬组件相对于壳体的横向移动 。
    • 10. 发明授权
    • Determination of the impedance of a material behind a casing combining two sets of ultrasonic measurements
    • 确定外壳后面的材料的阻抗,结合两组超声波测量
    • US07149146B2
    • 2006-12-12
    • US11303362
    • 2005-12-15
    • Robert Van KuijkJean-Luc Le CalvezBenoit Froelich
    • Robert Van KuijkJean-Luc Le CalvezBenoit Froelich
    • G01V1/00
    • E21B47/0005
    • 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.
    • 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。