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公开(公告)号：US20110166840A1
公开(公告)日：2011-07-07
申请号：US13056041
申请日：2009-08-31
申请人： Kenneth E. Green , Leslie A. Wahrmund , Oliver M. Burtz , Dennis E. Willen , Rebecca L. Saltzer , Leonard J. Srnka
发明人： Kenneth E. Green , Leslie A. Wahrmund , Oliver M. Burtz , Dennis E. Willen , Rebecca L. Saltzer , Leonard J. Srnka
摘要： Systems and methods which provide electromagnetic subsurface mapping to derive information with respect to subsurface features whose sizes are near to or below the resolution of electromagnetic data characterizing the subsurface are shown. Embodiments operate to identify a region of interest (203) in a resistivity image generated (202) using electromagnetic data (201). One or more scenarios may be identified for the areas of interest, wherein the various scenarios comprise representations of features whose sizes are near to or below the resolution of the electromagnetic data (204). According to embodiments, the scenarios are evaluated (205), such as using forward or inverse modeling, to determine each scenarios' fit to the available data and further to determine their geologic reasonableness (206). Resulting scenarios may be utilized in a number of ways, such as to be substituted in a resistivity image for a corresponding region of anomalous resistivity for enhancing the resistivity image (207).
摘要翻译： 示出了提供电磁地下映射以相对于其尺寸接近或低于表征地下电磁数据的分辨率的地下特征的信息的系统和方法。 实施例用于使用电磁数据（201）识别生成（202）的电阻率图像中的感兴趣区域（203）。 可以针对感兴趣的区域识别一个或多个场景，其中各种场景包括尺寸接近或低于电磁数据（204）的分辨率的特征的表示。 根据实施例，评估方案（205），例如使用正向或反向建模，以确定每个场景适合于可用数据并进一步确定其地质合理性（206）。 可以以多种方式利用所得到的场景，例如在电阻率图像中替代用于增强电阻率图像的异常电阻率的对应区域（207）。
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公开(公告)号：US09015010B2
公开(公告)日：2015-04-21
申请号：US13056041
申请日：2009-08-31
申请人： Kenneth E. Green , Leslie A. Wahrmund , Olivier M. Burtz , Dennis E. Willen , Rebecca L. Saltzer , Leonard J. Srnka
发明人： Kenneth E. Green , Leslie A. Wahrmund , Olivier M. Burtz , Dennis E. Willen , Rebecca L. Saltzer , Leonard J. Srnka
摘要： Systems and methods which provide electromagnetic subsurface mapping to derive information with respect to subsurface features whose sizes are near to or below the resolution of electromagnetic data characterizing the subsurface are shown. Embodiments operate to identify a region of interest (203) in a resistivity image generated (202) using electromagnetic data (201). One or more scenarios may be identified for the areas of interest, wherein the various scenarios comprise representations of features whose sizes are near to or below the resolution of the electromagnetic data (204). According to embodiments, the scenarios are evaluated (205), such as using forward or inverse modeling, to determine each scenarios' fit to the available data and further to determine their geologic reasonableness (206). Resulting scenarios may be utilized in a number of ways, such as to be substituted in a resistivity image for a corresponding region of anomalous resistivity for enhancing the resistivity image (207).
摘要翻译： 示出了提供电磁地下映射以相对于其尺寸接近或低于表征地下电磁数据的分辨率的地下特征的信息的系统和方法。 实施例用于使用电磁数据（201）识别生成（202）的电阻率图像中的感兴趣区域（203）。 可以针对感兴趣的区域识别一个或多个场景，其中各种场景包括尺寸接近或低于电磁数据（204）的分辨率的特征的表示。 根据实施例，评估方案（205），例如使用正向或反向建模，以确定每个场景适合于可用数据并进一步确定其地质合理性（206）。 可以以多种方式利用所得到的场景，例如在电阻率图像中替代用于增强电阻率图像的异常电阻率的对应区域（207）。
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公开(公告)号：US20130179137A1
公开(公告)日：2013-07-11
申请号：US13814214
申请日：2011-06-27
IPC分类号： G06F17/50
CPC分类号： G06F17/5009 , G01V3/12 , G01V3/18 , G01V11/00 , G01V2210/6163 , G01V2210/6165
摘要： Method for reducing a 3D joint inversion of at least two different types of geophysical data acquired by 3-D surveys (21) to an equivalent set of ID inversions. First, a 3D inversion is performed on each data type separately to the yield a 3-D model of a physical property corresponding to the data type (22). Next, a ID model of the physical property is extracted at selected (x,y) locations. A ID simulator (23) and the ID model of the physical property is then used at each of the selected locations to create a synthetic ID data set at each location (24). Finally, the ID synthetic data sets for each different type of geophysical data are jointly inverted at each of the selected locations, yielding improved values of the physical properties. Because the joint inversion is a ID inversion, the method is computationally advantageous, while recognizing the impact of 3-D effects.
摘要翻译： 将通过三维调查（21）获得的至少两种不同类型的地球物理数据的3D联合反演减少为等效的一组ID反转的方法。 首先，分别对每种数据类型执行3D反演以产生与数据类型（22）对应的物理属性的3-D模型。 接下来，在所选择的（x，y）位置提取物理属性的ID模型。 然后在每个所选择的位置处使用ID模拟器（23）和物理属性的ID模型来在每个位置（24）创建合成ID数据集。 最后，每个不同类型的地球物理数据的ID合成数据集合在每个选定位置处共同反转，产生改善的物理特性值。 因为联合反演是一个ID反转，所以该方法在计算上是有利的，同时识别3-D效应的影响。
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公开(公告)号：US09195783B2
公开(公告)日：2015-11-24
申请号：US13814214
申请日：2011-06-27
CPC分类号： G06F17/5009 , G01V3/12 , G01V3/18 , G01V11/00 , G01V2210/6163 , G01V2210/6165
摘要： Method for reducing a 3D joint inversion of at least two different types of geophysical data acquired by 3-D surveys to an equivalent set of 1D inversions. First, a 3D inversion is performed on each data type separately to the yield a 3-D model of a physical property corresponding to the data type. Next, a 1D model of the physical property is extracted at selected (x,y) locations. A 1D simulator and the 1D model of the physical property is then used at each of the selected locations to create a synthetic 1D data set at each location. Finally, the 1D synthetic data sets for each different type of geophysical data are jointly inverted at each of the selected locations, yielding improved values of the physical properties. Because the joint inversion is a 1D inversion, the method is computationally advantageous, while recognizing the impact of 3-D effects.
摘要翻译： 将通过三维调查获得的至少两种不同类型的地球物理数据的3D联合反演减少为等效的1D反演的方法。 首先，分别对每种数据类型执行3D反演，以产生与数据类型对应的物理属性的3-D模型。 接下来，在选定的（x，y）位置提取物理性质的1D模型。 然后在每个选定位置使用1D模拟器和物理属性的1D模型，以在每个位置创建合成的1D数据集。 最后，每个不同类型的地球物理数据的1D合成数据集在每个选定的位置共同反转，产生改善的物理性质值。 因为联合反演是一维反演，所以该方法在计算上是有利的，同时识别3-D效应的影响。
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公开(公告)号：US09746577B2
公开(公告)日：2017-08-29
申请号：US14271131
申请日：2014-05-06
申请人： Adrian Ciucivara , Dennis E. Willen
发明人： Adrian Ciucivara , Dennis E. Willen
CPC分类号： G01V3/38 , G01V2210/62 , G06F17/50
摘要： Method for estimating uncertainty in a physical property model generated by inverting measured geophysical data, for example, a resistivity model inferred from electromagnetic field data. The method involves as few as one data inversion coupled with a number of forward simulation. Alternative solutions (models) are generated by probing a perturbation space defined from a reduced model space, resulting from a principal component decomposition of the inverted model, and selecting some of the larger components. Statistical analysis techniques may be applied (to those alternative solutions remaining after thresholding) to generate quantitative uncertainty estimates applicable to the inverted model.
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公开(公告)号：US20110264421A1
公开(公告)日：2011-10-27
申请号：US13018711
申请日：2011-02-01
申请人： Charlie Jing , Dennis E. Willen
发明人： Charlie Jing , Dennis E. Willen
CPC分类号： G01V3/38
摘要： Method for transforming electromagnetic survey data acquired from a subsurface region to a subsurface resistivity model indicative of hydrocarbon accumulations or lack thereof. In one embodiment, data are selected for two or more non-zero frequencies (100), and a structural model of the region is developed based on available geological or geophysical information. An initial resistivity model of the region is developed based on the structural model (101), and the selected data are inverted to update the resistivity model (106) by iterative forward modeling (103) and minimizing an objective function (105) including a term measuring mismatch between model synthesized data and measured survey data, and another term being a diffusive regularization term that smoothes the resistivity model (104). The regularization term can involve a structure or geology constraint, such as an anisotropic resistivity symmetry axis or a structure axis, determined from the a priori information (102).
摘要翻译： 将从地下区域获取的电磁勘测数据转换为表示碳氢化合物积聚或缺乏的地下电阻率模型的方法。 在一个实施例中，为两个或多个非零频率（100）选择数据，并且基于可用的地质或地球物理信息来开发该区域的结构模型。 基于结构模型（101）开发该区域的初始电阻率模型，并且通过迭代正向建模（103）反转所选择的数据以更新电阻率模型（106）并最小化包括项目的目标函数（105） 测量模型合成数据与测量的测量数据之间的不匹配，另一个术语是平滑电阻率模型的扩散正则化项（104）。 正则化术语可以涉及从先验信息（102）确定的结构或地质学约束，例如各向异性电阻率对称轴或结构轴。
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7.发明授权公开(公告)号：US07933741B2
公开(公告)日：2011-04-26
申请号：US12501251
申请日：2009-07-10
申请人： Dennis E. Willen , Xinyou Lu
发明人： Dennis E. Willen , Xinyou Lu
IPC分类号： G06F19/00
摘要： A method, apparatus and computer program for improving the signal-to-noise ratio of a signal S(t), S(t) containing Signal and noise, are disclosed. A measurement of S(t) at a frequency-of-interest is obtained. Noise measurements of S(t) at one or more noise frequencies where the Signal portion of S(t) is expected to be small are obtained. The noise at the frequency-of-interest is estimated using the noise measurements at the one or more noise frequencies. The estimated noise is subtracted from the measurement of S(t) at the frequency-of-interest.
摘要翻译： 公开了一种用于提高包含信号和噪声的信号S（t），S（t）的信噪比的方法，装置和计算机程序。 获得感兴趣频率的S（t）的测量值。 获得预期S（t）的信号部分的一个或多个噪声频率处的S（t）的噪声测量值。 使用在一个或多个噪声频率处的噪声测量来估计感兴趣频率处的噪声。 从感兴趣频率的S（t）的测量中减去估计的噪声。
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公开(公告)号：US20100176791A1
公开(公告)日：2010-07-15
申请号：US12303673
申请日：2007-06-12
申请人： Thomas A Dickens , Charlie Jing , Dennis E. Willen
发明人： Thomas A Dickens , Charlie Jing , Dennis E. Willen
IPC分类号： G01V3/12
摘要： Method for identifying, determining and correcting source-related phase errors in data from a controlled source electromagnetic survey by using data from ordinary survey receivers, i.e. without benefit of source monitoring data. Abrupt anomalies indicating source malfunctions are identified (71) in the time domain by plotting time intervals between neighboring zero crossings or by zero-lag cross correlation between consecutive bins of receiver data, and the amount of the time error (73) can be determined by performing cross correlation between two bins on either side of an anomaly. In the frequency domain, transmitter anomalies can be identified by looking for discontinuities in plots of phase vs. offset, and the corrective phase shift can be determined by matching the phase on one side of the anomaly to that on the other side. A global time/phase shift (76) can be determined by using phase frequency-scaling behavior at near offsets.
摘要翻译： 用于通过使用普通测量接收机的数据来识别，确定和校正来自受控源电磁勘测的源相关相位误差的方法，即不受源监测数据的益处。 在时域中通过绘制相邻过零点之间的时间间隔或接收器数据的连续箱之间的零时相互相关来识别（71）在时域中的突发异常，并且时间误差量（73）可以由 在异常的任一侧执行两个箱之间的互相关。 在频域中，可以通过查找相位偏移图中的不连续性来识别发射机异常，并且可以通过将异常一侧的相位与另一侧的相位匹配来确定校正相移。 全局时间/相移（76）可以通过使用接近偏移的相位频率缩放行为来确定。
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9.发明申请公开(公告)号：US20090120636A1
公开(公告)日：2009-05-14
申请号：US11990960
申请日：2006-07-26
CPC分类号： G01V3/083
摘要： Method for separating responses of multiple transmitters m a controlled source electromagnetic survey by using mutually orthogonal transmitter waveforms and transforming the combined response to the frequency domain (144) The mutual orthogonality can be based disjoint frequency spectra or on phase encoding of a common waveform element (FIG. 14)
摘要翻译： 用于分离多个发射机的响应的方法通过使用相互正交的发射机波形来控制源电磁勘测，并将组合响应变换到频域（144）互相正交性可以是基于不相交的频谱或公共波形元素的相位编码（图 14）
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公开(公告)号：US5987387A
公开(公告)日：1999-11-16
申请号：US11193
申请日：1998-01-29
摘要： A method of processing seismic data on parallel processors, preferably on a massively parallel processor. The input ot the process is seismic data from one or more of a number of seismic lines. The end product of the invention is a DMO corrected, zero-offset seismic image of the subsurface. By repeating the method on different input offsets, the variation in reflection strength of a reflector as a function of the angle of incidence can be examined. The method includes a two stage parallelization. First, a parallelization over the incoming traces generates a suite of DMO-corrected partial images for each point on each incoming trace. Secondly, a parallelization over output locations accumulates and combines the partial images, and produces output traces.
摘要翻译： PCT No.PCT / US96 / 15818 Sec。 371日期1998年1月29日 102（e）1998年1月29日PCT PCT 1996年10月2日PCT公布。 出版物WO97 / 1321300 日期1997年04月10日一种在并行处理器上处理地震数据的方法，优选地在大规模并行处理器上。 该过程的输入是来自多个地震线中的一个或多个的地震数据。 本发明的最终产物是地下的DMO校正的零偏移地震图像。 通过在不同的输入偏移上重复该方法，可以检查作为入射角的函数的反射器的反射强度的变化。 该方法包括两级并行化。 首先，通过输入轨迹的并行化可以为每个输入轨迹上的每个点生成一组DMO校正的部分图像。 其次，输出位置上的并行化积累并组合部分图像，并产生输出迹线。
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