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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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公开(公告)号：US08239181B2
公开(公告)日：2012-08-07
申请号：US12465932
申请日：2009-05-14
申请人： Xinyou Lu , Charlie Jing , Thomas A. Dickens , Dennis E. Willen
发明人： Xinyou Lu , Charlie Jing , Thomas A. Dickens , Dennis E. Willen
IPC分类号： G06G7/48
CPC分类号： G01V3/12
摘要： A method for suppressing measurement system signature, or artifacts, that arise when controlled source electromagnetic survey data are inverted to obtain a resistivity image of a subsurface region. The method involves identifying regions (47) where the image has low or rapidly varying sensitivity to data acquired by a given receiver, typically regions close to and under the given receiver. Then, in the iterative inversion process where a resistivity model is updated to minimize an objective function, the model update is modified (48) to reduce the impact of such low sensitivity regions on the update.
摘要翻译： 当控制源电磁勘测数据被反转以获得地下区域的电阻率图像时，产生抑制测量系统特征或伪像的方法。 该方法包括识别区域（47），其中图像具有低或快速变化的灵敏度，其由给定接收器（通常在给定接收器附近和之下的区域）获取的数据。 然后，在更新电阻率模型以最小化目标函数的迭代反演过程中，修改模型更新（48）以减少这种低灵敏度区域对更新的影响。
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公开(公告)号：US08121789B2
公开(公告)日：2012-02-21
申请号：US12303673
申请日：2007-06-12
IPC分类号： G01V1/40
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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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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5.发明授权公开(公告)号：US11287541B2
公开(公告)日：2022-03-29
申请号：US15371759
申请日：2016-12-07
申请人： William A Burnett , Martin J. Terrell , Pavel Dimitrov , Thomas A. Dickens , Yaxun Tang , Partha S. Routh , William Curry , Dennis E. Willen
发明人： William A Burnett , Martin J. Terrell , Pavel Dimitrov , Thomas A. Dickens , Yaxun Tang , Partha S. Routh , William Curry , Dennis E. Willen
摘要： A method, including: determining, with a computer, point spread functions for a plurality of parameter locations by performing at least a portion of a first iteration of an iterative full wavefield inversion process; determining at least one property for each of the point spread functions; and evaluating a candidate survey design based on the at least one property for each of the point spread functions.
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公开(公告)号：US09207351B2
公开(公告)日：2015-12-08
申请号：US13265393
申请日：2010-03-26
摘要： Embodiments described herein use stochastic inversion (460) in lower dimensions to form an initial model (458) that is to be used in higher-dimensional gradient-based inversion (466). For example, an initial model may be formed from 1.5-D stochastic inversions, which is then processed (464) to form a 3-D model. Stochastic inversions reduce or avoid local minima and may provide an initial result that is near the global minimum.
摘要翻译： 本文所描述的实施例使用较低维度的随机反演（460）来形成将用于基于更高维梯度的反演（466）中的初始模型（458）。 例如，初始模型可以由1.5-D随机逆转形成，然后进行处理（464）以形成3-D模型。 随机反演减少或避免局部最小值，并可能提供接近全局最小值的初始结果。
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7.发明申请公开(公告)号：US20170176613A1
公开(公告)日：2017-06-22
申请号：US15371759
申请日：2016-12-07
申请人： William A. BURNETT , Martin J. Terrell , Pavel Dimitrov , Thomas A. Dickens , Yaxun Tang , Partha S. Routh , William Curry , Dennis E. Willen
发明人： William A. BURNETT , Martin J. Terrell , Pavel Dimitrov , Thomas A. Dickens , Yaxun Tang , Partha S. Routh , William Curry , Dennis E. Willen
IPC分类号： G01V1/28
摘要： A method, including: determining, with a computer, point spread functions for a plurality of parameter locations by performing at least a portion of a first iteration of an iterative full wavefield inversion process; determining at least one property for each of the point spread functions; and evaluating a candidate survey design based on the at least one property for each of the point spread functions.
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公开(公告)号：US20120080197A1
公开(公告)日：2012-04-05
申请号：US13265393
申请日：2010-03-26
摘要： Embodiments described herein use stochastic inversion (460) in lower dimensions to form an initial model (458) that is to be used in higher-dimensional gradient-based inversion (466). For example, an initial model may be formed from 1.5-D stochastic inversions, which is then processed (464) to form a 3-D model. Stochastic inversions reduce or avoid local minima and may provide an initial result that is near the global minimum.
摘要翻译： 本文所描述的实施例使用较低维度的随机反演（460）来形成将用于基于更高维梯度的反演（466）中的初始模型（458）。 例如，初始模型可以由1.5-D随机逆转形成，然后进行处理（464）以形成3-D模型。 随机反演减少或避免局部最小值，并可能提供接近全局最小值的初始结果。
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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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公开(公告)号：US08538699B2
公开(公告)日：2013-09-17
申请号：US12375188
申请日：2007-07-30
摘要： Method for rapid inversion of data from a controlled-source electromagnetic survey of a subterranean region. Selected (51) common-receiver or common-source gathers of the data are reformed into composite gathers (52) by summing their data. Each composite gather is forward modeled (in the inversion process) with multiple active source locations (53). Computer time is reduced in proportion to the ratio of the total number of composite gathers to the total number of original common-receiver or common-source gathers. The data may be phase encoded to prevent data cancellation. Methods for mitigating loss of far offset information by data overlap in the summing process are disclosed.
摘要翻译： 从地下区域的受控源电磁勘探中快速反演数据的方法。 通过对数据进行求和，所选择的（51）公共接收器或公共源数据集合被重新组合成复合集合（52）。 每个复合聚集在多个活动源位置（53）向前建模（在反演过程中）。 计算机时间与复合收集总数与原始公共接收者或共同源集合总数的比例成正比地减少。 可以对数据进行相位编码以防止数据取消。 公开了通过求和过程中的数据重叠来减轻远偏移信息的丢失的方法。
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