Method for predicting the best and worst in a set of non-unique solutions
    2.
    发明授权
    Method for predicting the best and worst in a set of non-unique solutions 有权
    用于预测一组非唯一解的最佳和最差的方法

    公开(公告)号:US08126648B2

    公开(公告)日:2012-02-28

    申请号:US11922817

    申请日:2006-06-26

    IPC分类号: G01V9/00

    CPC分类号: G01V1/306

    摘要: Method for determining best and worst cases for values of model parameters such as porosity and shale volume fraction generated by non-unique matrix inversion of physical data such as seismic reflection amplitudes. The matrix is diagonalized, and then orthonormal basis vectors associated with insignificant diagonal elements are used to generate upper and lower bounds on the solution. Best and worst case solutions are determined as linear combinations of the null basis vectors, where the expansion coefficients are determined by making a best fit to the upper and lower bounds.

    摘要翻译: 用于确定模型参数值的最佳和最差情况的方法,例如通过物理数据(如地震反射幅度)的非唯一矩阵反演产生的孔隙度和页岩体积分数。 矩阵被对角化,然后使用与无效对角线元素相关联的正交基矢量来在解上产生上限和下限。 最佳和最差情况解决方案被确定为空基向量的线性组合,其中通过对上限和下限进行最佳拟合来确定膨胀系数。

    Method for phase and amplitude correction in controlled source electromagnetic survey data
    3.
    发明授权
    Method for phase and amplitude correction in controlled source electromagnetic survey data 有权
    控制源电磁勘探数据中的相位和幅度校正方法

    公开(公告)号:US07801681B2

    公开(公告)日:2010-09-21

    申请号:US12083883

    申请日:2006-09-25

    IPC分类号: G01V1/40

    CPC分类号: G01V3/083 G01V3/12

    摘要: The method for correcting the phase of measured electric signals or magnetic signals of field data from a controlled source electromagnetic survey (CSES) by comparing the measured field data corresponding to a selected frequency to the simulated data for various signal source receiver offsets (71) and correcting the phases of the actual data based on the phase difference for a selected range of small signal offsets (76) based on a go-electric model.

    摘要翻译: 通过将对应于所选频率的测量场数据与各种信号源接收机偏移(71)的模拟数据进行比较来校正来自受控源电磁勘测(CSES)的场数据的测量电信号或磁信号的相位的方法,以及 基于去电模型,基于所选择的小信号偏移范围(76)的相位差校正实际数据的相位。

    Design of reconnaissance surveys using controlled source electromagnetic fields via probabilistic neural network
    4.
    发明授权
    Design of reconnaissance surveys using controlled source electromagnetic fields via probabilistic neural network 有权
    通过概率神经网络设计使用受控源电磁场的侦察调查

    公开(公告)号:US07792766B2

    公开(公告)日:2010-09-07

    申请号:US11886171

    申请日:2006-03-20

    CPC分类号: G01V3/083

    摘要: Method for determining an expected value for a proposed reconnaissance electromagnetic (or any other type of geophysical) survey using a user-controlled source. The method requires only available geologic and economic information about the survey region. A series of calibration surveys are simulated with an assortment of resistive targets consistent with the known information. The calibration surveys are used to train pattern recognition software to assess the economic potential from anomalous resistivity maps. The calibrated classifier is then used on further simulated surveys of the area to generate probabilities that can be used in Value of Information theory to predict an expected value of a survey of the same design as the simulated surveys. The calibrated classifier technique can also be used to interpret actual CSEM survey results for economic potential.

    摘要翻译: 使用用户控制源确定拟议侦察电磁(或任何其他类型的地球物理)勘测的预期值的方法。 该方法只需要有关调查区域的可用的地质和经济信息。 使用与已知信息一致的各种电阻目标模拟一系列校准调查。 校准调查用于训练模式识别软件,以评估异常电阻率图的经济潜力。 然后将校准的分类器用于对该区域的进一步模拟调查,以产生可用于信息价值理论的概率,以预测与模拟调查相同设计的调查的预期值。 校准分类技术也可用于解释实际的CSEM调查结果的经济潜力。

    Method for quantification and mitigation for dip-induced azimuthal AVO
    5.
    发明授权
    Method for quantification and mitigation for dip-induced azimuthal AVO 有权
    浸渍诱导方位AVO的定量和减轻方法

    公开(公告)号:US07761237B2

    公开(公告)日:2010-07-20

    申请号:US11666579

    申请日:2005-10-14

    摘要: This patent delineates methods for quantifying and mitigating dip-induced azimuthal AVO effects in seismic fracture detection using Azimuthal AVO analysis by accurately accounting for the divergence correction and azimuthal dependence of the reflection angle. Solutions are provided for three cases: (1) dipping isotropic reservoirs; (2) anisotropic reservoirs with fractures aligned in arbitrary direction; and (3) anisotropic reservoirs where vertical fractures are aligned perpendicular to the dip direction.

    摘要翻译: 该专利描述了使用方位角AVO分析来定量和减轻地震断层检测中的倾角方位AVO效应的方法,准确地计算了反射角的发散校正和方位角依赖性。 提供三种解决方案:(1)浸渍各向同性储层; (2)各向异性储层,裂缝沿任意方向排列; 和(3)各向异性储层,其中垂直裂缝垂直于倾斜方向排列。

    Shaped high frequency vibratory source
    6.
    发明授权
    Shaped high frequency vibratory source 有权
    形高频振动源

    公开(公告)号:US07436734B2

    公开(公告)日:2008-10-14

    申请号:US10550406

    申请日:2004-02-13

    IPC分类号: G01V1/00 G01V1/155

    CPC分类号: G01V1/005 G01V1/368 G01V1/37

    摘要: The present invention is a method of processing seismic data in which one or more seismic vibrators are activated with one or more pilot signals and vibrator motions are recorded along with seismic data. Vibrator signatures are computed from measured vibrator motions, such as the ground force signal. A desired impulse response is specified from either a measured vibrator motion or from test data or field data from a location near the location from which the seismic data was acquired. A deconvolution filter is computed from the impulse response and the vibrator signature. Alternatively, a single separation and deconvolution filter is derived from the impulse response and from vibrator signatures from multiple vibrators and sweeps. The deconvolution or deconvolution and separation filter is used to process the seismic data. The vibrators are then moved to a new location, and the activation is repeated.

    摘要翻译: 本发明是一种处理地震数据的方法,其中一个或多个地震振动器由一个或多个导频信号激活,振动器运动与地震数据一起被记录。 振动器特征由测量的振动器运动计算,如地面力信号。 从测量的振动器运动或来自测量数据或来自获取地震数据的位置附近的位置的场数据指定期望的脉冲响应。 根据脉冲响应和振动器签名计算去卷积滤波器。 或者,单个分离和去卷积滤波器来自脉冲响应和来自多个振动器和扫描的振动器特征。 去卷积或去卷积和分离滤波器用于处理地震数据。 然后将振动器移动到新位置,并重复激活。

    Method for obtaining porosity and shale volume from seismic data
    7.
    发明授权
    Method for obtaining porosity and shale volume from seismic data 有权
    从地震数据中获取孔隙度和页岩体积的方法

    公开(公告)号:US08126651B2

    公开(公告)日:2012-02-28

    申请号:US11922815

    申请日:2006-06-06

    IPC分类号: G01V1/00 G01V1/28

    CPC分类号: G01V1/306

    摘要: Method for obtaining rock parameters such as porosity and vshale directly from inversion of seismic data corresponding to a single trace location. This method is distinguished from existing methods that obtain elastic properties from inversion of seismic data, then relate the elastic parameters to rock lithology parameters such as porosity or vshale because it is accomplished in one step, can incorporate anisotropy and does not require multiple trace locations for stability. The data are separated into partial stacks, and a wavelet is specified for each stack. A set of linearized equations are constructed relating seismic reflectivity to changes in elastic parameters, and another set of linearized equations is constructed relating the changes in elastic parameters to the lithologic parameters. The linearized reflectivity equations are combined with the linearized rock physics equations, convolved with the specified wavelets, and equated to the seismic data. The resulting matrix equations are then inverted and a solution is obtained for all offsets simultaneously.

    摘要翻译: 直接从对应于单一轨迹位置的地震数据反演获得岩石参数如孔隙度和垂直叶片的方法。 该方法与从地震数据反演获得弹性性质的现有方法不同,然后将弹性参数与岩石岩性参数(如孔隙度或vshale)相关联,因为它在一个步骤中完成,可以包含各向异性,并且不需要多个迹线位置 稳定性。 数据被分成部分堆栈,并为每个堆栈指定一个小波。 构造了一组线性方程,将地震反射率与弹性参数的变化相关联,另外建立了一组线性化方程,将弹性参数的变化与岩性参数相关联。 线性化反射率方程与线性化岩石物理方程组合,与指定的小波卷积,并等同于地震数据。 然后将所得到的矩阵方程反相,同时获得所有偏移的解。

    Spectral shaping inversion and migration of seismic data
    8.
    发明授权
    Spectral shaping inversion and migration of seismic data 有权
    地震数据的光谱整形反演和迁移

    公开(公告)号:US08121791B2

    公开(公告)日:2012-02-21

    申请号:US12742561

    申请日:2008-12-05

    IPC分类号: G06F17/14

    摘要: A geophysical model of a subsurface region is generated based on seismic data, e.g., seismic reflection data. Migration and seismic inversion are applied to the seismic data to generate estimates of one or more physical or seismic properties of the subsurface region. Seismic inversion, such as spectral shaping inversion, is applied before or after migrating the seismic data through a variety of techniques that each avoid the amplification of dipping energy while optimizing computational efficiency and/or accuracy.

    摘要翻译: 基于地震数据(例如地震反射数据)生成地下区域的地球物理模型。 移动和地震反演应用于地震数据,以产生地下区域的一个或多个物理或地震属性的估计。 在通过各种避免浸渍能量放大同时优化计算效率和/或准确度的各种技术迁移地震数据之前或之后,应用地震反演,例如频谱整形反演。

    Method for correcting the phase of electromagnetic data
    9.
    发明授权
    Method for correcting the phase of electromagnetic data 有权
    电磁数据相位校正方法

    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

    CPC分类号: G01V3/12 G01V3/083

    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。

    Method for spatial filtering of electromagnetic survey data
    10.
    发明授权
    Method for spatial filtering of electromagnetic survey data 有权
    电磁勘探数据空间滤波方法

    公开(公告)号:US08090539B2

    公开(公告)日:2012-01-03

    申请号:US12087371

    申请日:2006-11-15

    申请人: Dennis E. Willen

    发明人: Dennis E. Willen

    IPC分类号: G06F15/00 G01V1/38 G01V3/18

    CPC分类号: G01V3/12 G01V3/083

    摘要: The method for suppressing noise in the controlled seismic source electromagnetic survey data based on the frequency content of the noise (51) contained in the data. The invention recognizes that some data variations across bins cannot be attributed to resistivity variations within the earth. This variation across the bins constitutes a model of noise in such surveys, and the invention mitigates noise that obeys this model.

    摘要翻译: 基于数据中包含的噪声(51)的频率含量,抑制受控地震源电磁勘测数据中的噪声的方法。 本发明认识到,一些数据变化不能归因于地球内的电阻率变化。 在这种调查中,整个箱体上的这种变化构成噪声模型,并且本发明减轻了遵守该模型的噪声。