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1.发明授权Using higher order harmonics to determine acoustic impedance of material behind borehole casings 有权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
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。
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2.发明授权Ultrasonic cylindrical resonator to facilitate bubble point pressure measurement 有权超声波圆柱形谐振器，以便泡点压力测量公开(公告)号：US06792798B2
公开(公告)日：2004-09-21
申请号：US10167516
申请日：2002-06-12
申请人： Kenneth K. Liang
发明人： Kenneth K. Liang
IPC分类号： E21B4908
CPC分类号： E21B49/10 , G01N29/036 , G01N29/222 , G01N29/2412 , G01N2291/02433
摘要： The present invention discloses an acoustic resonator device capable of nucleating bubbles in a formation fluid under borehole-like conditions wherein the static pressure is higher than the bubble point pressure. The device is comprised of one or more coaxial layers forming a central conduit, wherein at least one of the coaxial layers is comprised of an electro-acoustic transducer material such as including piezoelectric or magnetorestrictive materials. This device is preferably designed to be in fluid communication with a host tool to allow in-situ sampling and bubble point determination. Also disclosed is an in-situ method of fluid analysis in a borehole for determining phase characteristics of a formation fluid using the device. Cavitation may be induced using the device in either a captured volume sample or a flow-line sample.
摘要翻译： 本发明公开了一种声孔谐振器装置，其能够在静压高于泡点压力的类似井眼的条件下成核地层流体中的气泡。 该装置由形成中心导管的一个或多个同轴层组成，其中至少一个同轴层包括诸如包括压电或磁致伸缩材料的电声换能器材料。 该装置优选地被设计成与主机工具流体连通以允许原位采样和泡点确定。 还公开了一种在钻孔中的流体分析的原位方法，用于确定使用该装置的地层流体的相位特性。 可以使用捕获的体积样品或流线样品中的装置诱导气蚀。
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公开(公告)号：US06188643B1
公开(公告)日：2001-02-13
申请号：US08322919
申请日：1994-10-13
IPC分类号： G01V140
CPC分类号： E21B47/00 , E21B47/082 , G01B17/02 , G01V1/48 , G01V1/50
摘要： An improved technique for determining the thickness of a member, especially pipe such as fluid-filled casing in an earth borehole, includes the following steps: directing a pulse of ultrasonic energy toward the inner surface of the pipe, and receiving and storing, as a function of time, signals representative of ultrasonic energy reflected from the inner surface of the pipe; determining, from the stored signals, the arrival time of the initial echo from the inner surface; determining, from the stored signals, the arrival time and the amplitude of a first candidate initial echo from the outer surface of the pipe; performing a reverse search on the stored signals to determine, from stored signals at times earlier than the arrival time of the first candidate, the arrival time and the amplitude of a second candidate initial echo from the outer surface; comparing amplitudes of the first and second candidates, and selecting, based on the comparison, one of the first and second candidates as the actual outer surface echo; and determining the thickness of the pipe from the arrival time of the actual outer surface echo and the arrival time of the inner surface echo. Using this technique, the earlier arriving candidate can be properly identified as the actual outer surface echo, even when the later arriving candidate has a greater amplitude.
摘要翻译： 用于确定构件厚度的改进技术，特别是诸如地球钻孔中的流体填充壳体的管道包括以下步骤：将超声能量的脉冲引导到管的内表面，并且接收和存储为 时间函数，表示从管内表面反射的超声波能量的信号; 从所存储的信号确定来自内表面的初始回波的到达时间; 根据所存储的信号，从所述管的外表面确定第一候选初始回波的到达时间和振幅; 对所存储的信号执行反向搜索，从存储的信号中确定来自第一候选者的到达时间的时间，来自外表面的第二候选初始回波的到达时间和振幅; 比较第一和第二候选的振幅，并且基于比较选择第一和第二候选中的一个作为实际外表面回波; 并根据实际外表面回波的到达时间和内表面回波的到达时间来确定管道的厚度。 使用这种技术，即使当后来的候选者具有更大的振幅时，早期到达的候选者也可被适当地识别为实际的外表面回波。
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公开(公告)号：US5717169A
公开(公告)日：1998-02-10
申请号：US703305
申请日：1996-08-26
CPC分类号： E21B47/00 , E21B47/082 , G01B17/02 , G01V1/48 , G01V1/50
摘要： An improved technique for determining the thickness of a member, especially pipe such as fluid-filled casing in an earth borehole, includes the following steps: directing a pulse of ultra-sonic energy toward the inner surface of the pipe and receiving/storing, as a function of time, signals representative of ultra-sonic energy reflected from the inner surface of the pipe; determining, from the stored signals, the arrival or the initial echo from the inner surface; determining from the stored signals, the arrival and the amplitude of a first candidate initial echo from the outer surface of the pipe; performing a reverse search on the stored signals to determine, from stored signals at times earlier than the arrival time of the first candidate the arrival and the amplitude of a second candidate initial echo from the outer surface; comparing amplitudes of the first and second candidates and selecting, based on the comparison, one of the first and second candidates as the actual outer surface echo; and determining the thickness of the pipe from the arrival time of the actual outer surface echo and the arrival time of the inner surface echo. Using this technique, the earlier arriving candidate can be properly identified as the actual outer surface echo, even when the later arriving candidate has a greater amplitude.
摘要翻译： 一种用于确定构件厚度的改进技术，特别是诸如地球钻孔中的流体填充壳体的管道，包括以下步骤：将超声能量的脉冲引导到管的内表面并接收/存储，如 时间的函数，表示从管内表面反射的超声能的信号; 从存储的信号确定来自内表面的到达或初始回波; 从存储的信号确定来自管道的外表面的第一候选初始回波的到达和振幅; 对所存储的信号执行反向搜索，以从存储的信号确定来自第一候选者的到达时间的时间来自外表面的第二候选初始回波的到达和振幅; 比较第一和第二候选的振幅，并且基于比较选择第一和第二候选中的一个作为实际外表面回波; 并根据实际外表面回波的到达时间和内表面回波的到达时间来确定管道的厚度。 使用这种技术，即使当后来的候选者具有更大的振幅时，早期到达的候选者也可被适当地识别为实际的外表面回波。
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5.发明申请Using Higher Order Harmonics to Determine Acoustic Impedance of Material Behind Borehole Casings 有权使用更高阶谐波来确定井筒壳后面的材料的阻抗公开(公告)号：US20130155812A1
公开(公告)日：2013-06-20
申请号：US13330676
申请日：2011-12-20
IPC分类号： 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。
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6.发明授权
公开(公告)号：US4503708A
公开(公告)日：1985-03-12
申请号：US464394
申请日：1983-02-07
CPC分类号： G01N29/0681 , G01S15/8906
摘要： An acoustic microscope comprising a transducer for transmitting acoustic signals towards the surface to be studied, and means for receiving at least one reflected signal from the surface; in many embodiments of the invention, signals are received from two separate points. The signals received are passed to a synchronous phase detection system for analysis. The signals may be received at the same phase detector input and separated according to their expected time of receipt relative to their time of transmission, or they may be received at separated points on the transducer related to their separated points of transmission. The separated return signals are compared on the basis of phase (and in certain embodiments, magnitude) differential either to each other or to an internally generated reference signal to analyze the surface characteristics of the material.
摘要翻译： 一种声学显微镜，包括用于向待研究的表面传送声学信号的换能器，以及用于从所述表面接收至少一个反射信号的装置; 在本发明的许多实施例中，从两个分开的点接收信号。 接收到的信号被传递到同步相位检测系统进行分析。 信号可以在相同的相位检测器输入处接收，并根据其相对于其传输时间的预期接收时间分离，或者它们可以在与其分离的传输点相关的传感器上的分离点处被接收。 基于相位（和在某些实施例中的幅度）差分彼此或与内部产生的参考信号对分离的返回信号进行比较，以分析材料的表面特性。
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公开(公告)号：US5676213A
公开(公告)日：1997-10-14
申请号：US630739
申请日：1996-04-10
摘要： A portion of a borehole wall is isolated from surrounding borehole fluids by placing a chamber of a borehole tool against the borehole wall. The chamber comprises a cylindrical recess in an exterior surface of the borehole tool. The recess is open at one end to receive borehole fluids, and closed at the opposite end by a concave ultrasonic acoustic transducer. Mudcake present within the chamber and on the isolated portion of the borehole wall is disintegrated by the concave ultrasonic transducer. This approach can be used to remove mudcake from a borehole wall with a moving or stationary borehole tool.
摘要翻译： 通过将钻孔工具的腔室放置在钻孔壁上，将井壁的一部分与周围的钻孔流体隔离。 该腔室包括在钻孔工具的外表面中的圆柱形凹部。 凹口在一端开口以接收井眼流体，并且在相对端由凹形超声波声换能器封闭。 存在于室内和井壁的隔离部分上的泥饼由凹形超声换能器分解。 这种方法可以用移动或固定的钻孔工具从井壁去除泥饼。
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