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11. 发明公开

EP2304474A2 METHOD AND SYSTEM FOR GENERATING A BEAM OF ACOUSTIC ENERGY FROM A BOREHOLE, AND APPLICATIONS THEREOF 有权
标题翻译：方法和系统用于产生声音能量束从孔和其用途
公开(公告)号：EP2304474A2
公开(公告)日：2011-04-06
申请号：EP09763704.5
申请日：2009-06-12
申请人： Chevron U.S.A., Inc. , Los Alamos National Security LLC
发明人： JOHNSON, Paul, A. , GUYER, Robert , LE BAS, Pierre-Yves , VU, Cung , NIHEI, Kurt , SCHMITT, Denis, P. , SKELT, Christopher , TEN CATE, James A.
IPC分类号： G01V1/46
CPC分类号： G01V1/46
摘要： A compact array of transducers (110, 120) is employed as a downhole instrument for acoustic investigation of the surrounding rock formation. The array is operable to generate simultaneously a first acoustic beam signal (110) at a first frequency and a second acoustic beam signal (120) at a second frequency different than the first frequency. These two signals can be oriented through an azimuthal rotation of the array and an inclination rotation using control of the relative phases of the signals from the transmitter elements or electro-mechanical linkage. Due to the non-linearity of the formation (140), the first and the second acoustic beam signal (110, 120) mix into the rock formation where they combine into a collimated third signal (150) that propagates in the formation along the same direction than the first and second signals and has a frequency equal to the difference of the first and the second acoustic signals. The third signal is received either within the same borehole, after reflection, or another borehole, after transmission, and analyzed to determine information about rock formation.

12. 发明申请

WO2018080583A1 TIME-REVERSED NONLINEAR ACOUSTIC DOWNHOLE PORE PRESSURE MEASUREMENTS 审中-公开
标题翻译：时间反转的非线性声学井下孔隙压力测量
公开(公告)号：WO2018080583A1
公开(公告)日：2018-05-03
申请号：PCT/US2017/024203
申请日：2017-03-26
申请人： LOS ALAMOS NATIONAL SECURITY, LLC , CHEVRON U.S.A INC.
发明人： GOODMAN, Harvey E. , ULRICH, Timothy J., II , GUYER, Robert A. , JOHNSON, Paul A. , REMILLIEUX, Marcel C. , LE BAS, Pierre-Yves
IPC分类号： E21B47/06 , E21B47/00 , E21B49/00 , G01H5/00 , G01N15/08 , G01N29/024
摘要： Apparatus (10) and methods for measurement of pore pressure in rock formations through a metal borehole casing (32) after a well is cased and cemented, are described. Such measurements may be accomplished by using the Dynamic Acoustic Elasticity (DAE) method for characterizing nonlinear parameters by perturbing a selected rock formation region with a High Amplitude, Low Frequency (HALF) acoustic strain wave, and probing this region using a Low Amplitude, High Frequency (LAHF) acoustic wave (18), (22). Time reversal techniques (36) may be employed for focusing acoustic energy into the formation in the vicinity of the pipe or open hole. The change in wave speed of the probe pulses as the HALF induced strain wave oscillation propagates through the formation, as a function of the induced strain, may be used to determine the nonlinear elastic parameters α, β, δ, and A of the pore pressure, from which the pore pressure may be determined in the region of the HALF wave.
摘要翻译：描述了装置（10）和用于在井下套管和胶结之后通过金属钻孔套管（32）测量岩层中的孔隙压力的方法。这种测量可以通过使用动态声学弹性（DAE）方法来完成，通过用高振幅，低频（HALF）声波应变波扰动选定的岩层区域来表征非线性参数，并且使用低振幅，高频率（LAHF）声波（18），（22）。时间反转技术（36）可用于将声能聚焦到管道或裸眼井附近的地层中。作为HALF诱导的应变波振荡传播通过地层的探测脉冲的波速变化作为诱导应变的函数可用于确定孔隙压力的非线性弹性参数α，β，δ和A ，从中可以确定HALF波区域的孔隙压力。

13. 发明申请

WO2018081179A1 DOWNHOLE NONLINEAR ACOUSTICS MEASUREMENTS IN ROCK FORMATIONS USING DYNAMIC ACOUSTIC ELASTICITY AND TIME REVERSAL 审中-公开
标题翻译：用动态声学弹性和时间反演法在岩层中进行井下非线性声学测量
公开(公告)号：WO2018081179A1
公开(公告)日：2018-05-03
申请号：PCT/US2017/058160
申请日：2017-10-24
申请人： LOS ALAMOS NATIONAL SECURITY, LLC , CHEVRON U.S.A INC.
发明人： GOODMAN, Harvey E. , ULRICH II, Timothy J. , ROBERTS, Peter M. , REMILLIEUX, Marcel C. , JOHNSON, Paul A. , LE BAS, Pierre-Yves , GUYER, Robert A.
IPC分类号： G01V1/40
摘要： Apparatus and methods for measurement of pore pressure in rock formations through an open, or cemented and/or cased, borehole ar described. Such measurements are achieved using the Dynamic Acoustic Elasticity (DAE) method for characterizing nonlinear parameters by perturbing a selected rock formation volume with a High Amplitude, Low Frequency (HALF) acoustic strain wave, and probing this volume using a Low Amplitude, High Frequency (LAHF) acoustic wave. Time reversal techniques may be employed for focusing acoustic energy Into the formation in the vicinity of the pipe or open hole.
摘要翻译：描述了通过开口或胶结和/或套管钻孔测量岩层中的孔隙压力的装置和方法。通过使用高振幅，低频率（HALF）声波应变波扰动选定岩石体积并使用低振幅，高频率（低频振动）探测该体积来使用动态声学弹性（DAE）方法来表征非线性参数，从而实现这种测量。 LAHF）声波。时间反转技术可用于将声能聚焦到管道或裸眼井附近的地层中。

14. 发明申请

WO2017156292A1 TIME-REVERSED NONLINEAR ACOUSTICS FOR DOWNHOLE PRESSURE MEASUREMENTS 审中-公开
标题翻译：用于井下压力测量的时间反转非线性声学
公开(公告)号：WO2017156292A1
公开(公告)日：2017-09-14
申请号：PCT/US2017/021606
申请日：2017-03-09
申请人： LOS ALAMOS NATIONAL SECURITY, LLC , CHEVRON U.S.A INC.
发明人： JOHNSON, Paul, A. , ULRICH II, Timothy, J. , LE BAS, Pierre-Yves , GUYER, Robert, A. , GOODMAN, Harvey, E. , REMILLIEUX, Marcel, C.
IPC分类号： G01V1/40
摘要： Apparatus (10) and methods for combining time reversal and elastic nonlinearity of formation materials for qualtitatively probing for over-pressured regions down hole in advance of a well drilling bit, to determine the distance to the over-pressured region, and for accurately measuring pore pressure downhole in a formation, are described. Classical and reciprocal time reversal methods may be utilized to achieve these measurements.
摘要翻译：装置（10）和用于组合地层材料的时间反转和弹性非线性以用于在钻井钻头之前定性探测井下过压区域的装置（10）以确定与过压区域的距离，描述了用于精确测量地层中的井下孔隙压力的区域。经典和互惠时间反转方法可用于实现这些测量。

15. 发明申请

WO2009152416A2 METHOD AND SYSTEM FOR GENERATING A BEAM OF ACOUSTIC ENERGY FROM A BOREHOLE, AND APPLICATIONS THEREOF 审中-公开
标题翻译：用于从井眼产生声波能量的方法和系统及其应用
公开(公告)号：WO2009152416A2
公开(公告)日：2009-12-17
申请号：PCT/US2009/047184
申请日：2009-06-12
申请人： CHEVRON U.S.A. INC. , JOHNSON, Paul, A. , GUYER, Robert , LE BAS, Pierre-Yves , VU, Cung , NIHEI, Kurt , SCHMITT, Denis, P. , SKELT, Christopher
发明人： JOHNSON, Paul, A. , GUYER, Robert , LE BAS, Pierre-Yves , VU, Cung , NIHEI, Kurt , SCHMITT, Denis, P. , SKELT, Christopher
IPC分类号： G01V1/42
CPC分类号： G01V1/46
摘要： A compact array of transducers is employed as a downhole instrument for acoustic investigation of the surrounding rock formation. The array is operable to generate simultaneously a first acoustic beam signal at a first frequency and a second acoustic beam signal at a second frequency different than the first frequency. These two signals can be oriented through an azimuthal rotation of the array and an inclination rotation using control of the relative phases of the signals from the transmitter elements or electro-mechanical linkage. Due to the non-linearity of the formation, the first and the second acoustic beam signal mix into the rock formation where they combine into a collimated third signal that propagates in the formation along the same direction than the first and second signals and has a frequency equal to the difference of the first and the second acoustic signals. The third signal is received either within the same borehole, after reflection, or another borehole, after transmission, and analyzed to determine information about rock formation. Recording of the third signal generated along several azimuthal and inclination directions also provides 3D images of the formation, information about 3D distribution of rock formation and fluid properties and an indication of the dynamic acoustic non-linearity of the formation.
摘要翻译：传感器的紧凑阵列被用作井下仪器，用于对周围岩层进行声学研究。阵列可操作以同时产生第一频率处的第一声波束信号和以与第一频率不同的第二频率的第二声束信号。这两个信号可以通过阵列的方位旋转和通过控制来自发射器元件或机电连杆的信号的相对相位的倾斜旋转来定向。由于形成的非线性，第一和第二声束信号混合到岩层中，在那里它们组合成沿着与第一和第二信号相同的方向在地层中传播的准直的第三信号，并且具有频率等于第一和第二声信号的差。第三个信号在相同的钻孔，反射后或另一个钻孔中，在传输之后被接收并且被分析以确定关于岩层的信息。沿着几个方位和倾斜方向产生的第三信号的记录还提供了地层的3D图像，关于岩层的3D分布和流体性质的信息以及地层的动态声学非线性的指示。

16. 发明申请

WO2012050880A3 DEVICE AND METHOD FOR IMAGING OF NON-LINEAR AND LINEAR PROPERTIES OF FORMATIONS SURROUNDING A BOREHOLE 审中-公开
公开(公告)号：WO2012050880A3
公开(公告)日：2012-04-19
申请号：PCT/US2011/053645
申请日：2011-09-28
申请人： CHEVRON U.S.A. Inc. , JOHNSON, Paul Allan , TENCATE, James A. , LE BAS, Pierre-Yves , GUYER, Robert A. , VU, Cung Khac , SKELT, Christopher H.
发明人： JOHNSON, Paul Allan , TENCATE, James A. , LE BAS, Pierre-Yves , GUYER, Robert A. , VU, Cung Khac , SKELT, Christopher H.
IPC分类号： G01V1/46
摘要： In some aspects of the disclosure, a method and an apparatus is disclosed for investigating material surrounding the borehole. The method includes generating a first low frequency acoustic wave within the borehole, wherein the first low frequency acoustic wave induces a linear and a nonlinear response in one or more features in the material that are substantially perpendicular to a radius of the borehole; directing a first sequence of high frequency pulses, with a frequency 10 to 1000 times that of the low frequency acoustic wave, in a direction perpendicularly with respect to the longitudinal axis of the borehole into the material contemporaneously with the first acoustic wave; and receiving one or more second high frequency pulses at one or more receivers positionable in the borehole produced by an interaction between the first sequence of high frequency pulses and the one or more features undergoing linear and nonlinear elastic distortion due to the first low frequency acoustic wave to investigate the material surrounding the borehole.

17. 发明授权

EP2622379B1 DEVICE AND METHOD FOR IMAGING OF NON-LINEAR AND LINEAR PROPERTIES OF FORMATIONS SURROUNDING A BOREHOLE 有权
公开(公告)号：EP2622379B1
公开(公告)日：2019-01-16
申请号：EP11770259.7
申请日：2011-09-28
申请人： Chevron U.S.A. Inc.
发明人： JOHNSON, Paul Allan , TENCATE, James A. , LE BAS, Pierre-Yves , GUYER, Robert A. , VU, Cung Khac , SKELT, Christopher H.
IPC分类号： G01V1/46

18. 发明公开

EP3529460A1 TIME-REVERSED NONLINEAR ACOUSTIC DOWNHOLE PORE PRESSURE MEASUREMENTS 有权
公开(公告)号：EP3529460A1
公开(公告)日：2019-08-28
申请号：EP17863696.5
申请日：2017-03-26
申请人： Triad National Security, LLC , Chevron U.S.A. Inc.
发明人： GOODMAN, Harvey E. , ULRICH, Timothy J., II , GUYER, Robert A. , JOHNSON, Paul A. , REMILLIEUX, Marcel C. , LE BAS, Pierre-Yves
IPC分类号： E21B47/06 , E21B47/00 , E21B49/00 , G01H5/00 , G01N15/08 , G01N29/024

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