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公开(公告)号：US20060233048A1
公开(公告)日：2006-10-19
申请号：US10566934
申请日：2004-08-02
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.
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公开(公告)号：US07522471B2
公开(公告)日：2009-04-21
申请号：US10566934
申请日：2004-08-02
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。
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3.发明授权公开(公告)号：US07149146B2
公开(公告)日：2006-12-12
申请号：US11303362
申请日：2005-12-15
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。
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公开(公告)号：US20060133205A1
公开(公告)日：2006-06-22
申请号：US11303362
申请日：2005-12-15
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.
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公开(公告)号：US20060289155A1
公开(公告)日：2006-12-28
申请号：US11426046
申请日：2006-06-23
IPC分类号： E21B43/00
CPC分类号： E21B47/101
摘要： An ultrasonic estimating method for estimating a mud velocity flowing into a casing by means of an ultrasonic estimating apparatus comprising a transducer and adapted to be positioned inside the casing and displaced through the casing at a plurality of azimuth and a plurality of depth, the method comprising the steps of: a) for a first depth and a first azimuth of the ultrasonic measuring arrangement: a1) emitting an emission ultrasonic wave towards the casing for exciting the casing with a sensibly normal incidence, a2) receiving a reflection ultrasonic wave reflected from the casing, a3) measuring a transit time Ti MES between the emitting step and the receiving step, a4) determining the casing thickness th1 for the first azimuth, b) repeating the emitting step a1), the receiving step a2), the measuring step a3) and the determining step a4) for the first depth and at least a second azimuth of the ultrasonic measuring arrangement, c) calculating an intermediate mud velocity value Vmud CALC based on the measured transit time Ti, the determined casing thickness thi, a diameter of the transducer DOT and a casing outer diameter OD for the first depth z−1, and for the first azimuth and at least the second azimuth, and d) calculating an estimated second depth z mud velocity value Vmud_est KFCALC by applying an estimation method to the intermediate mud velocity value and an estimated first depth mud velocity value.
摘要翻译： 一种用于通过包括换能器的超声波估计装置估计流入壳体的泥浆速度的超声估计方法，所述超声波估计装置适于定位在所述壳体内并以多个方位角和多个深度位移穿过所述壳体，所述方法包括 步骤：a）对于超声波测量装置的第一深度和第一方位角：a1）以合理的法线入射向外壳发射发射超声波，以激励壳体，a2）接收反射超声波的反射超声波 a3）测量发射步骤和接收步骤之间的传播时间Ti MES，a4）确定第一方位角的壳体厚度th1 ，b）重复发射步骤a1），接收 步骤a2），测量步骤a3）和确定步骤a4），以及超声波测量装置的至少第二方位角，c）计算中间泥浆速度 基于所测量的通过时间T i i i i，确定的壳体厚度t 1，变换器DOT的直径和第一深度z的壳体外径OD的值Vmud CALC -1，并且对于第一方位角和至少第二方位角，以及d）通过对中间泥浆速度值和估计的第一深度泥浆速度值应用估计方法来计算估计的第二深度z泥浆速度值V mud_est KFCALC。
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公开(公告)号：US07617052B2
公开(公告)日：2009-11-10
申请号：US11426046
申请日：2006-06-23
IPC分类号： G01N15/08
CPC分类号： E21B47/101
摘要： An ultrasonic estimating method and apparatus are presented for estimating a mud velocity in a casing including a transducer and adapted to be positioned inside the casing and displaced through the casing at a plurality of azimuth and a plurality of depths.
摘要翻译： 提出了一种用于估计包括换能器的壳体中的泥浆速度的超声波估计方法和装置，其适于定位在壳体内并以多个方位角和多个深度位移穿过壳体。
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