公开(公告)号：US5138583A

公开(公告)日：1992-08-11

申请号：US704231

申请日：1991-05-22

申请人： Cameron B. Wason ,  David J. Monk ,  Robert G. McBeath

发明人： Cameron B. Wason ,  David J. Monk ,  Robert G. McBeath

IPC分类号： G01V1/36

CPC分类号： G01V1/364 ,  G01V2210/3246 ,  G01V2210/3248

摘要： A method for attenuating coherent and incoherent noise in seismic signal data is provided. Seismic signal data is transformed from a time-space domain using a Radon-transform domain. In the Radon-transform domain, coherent noise is attenuated by muting and incoherent noise is attenuated by diversity stacking. Data remaining in the Radon-transform domain in transformed back to the time-space domain by an inverse Radon transform.

公开(公告)号：US5235556A

公开(公告)日：1993-08-10

申请号：US805397

申请日：1992-01-10

申请人： David J. Monk ,  Robert G. McBeath ,  Cameron B. Wason

发明人： David J. Monk ,  Robert G. McBeath ,  Cameron B. Wason

IPC分类号： G01V1/28

CPC分类号： G01V1/28 ,  G01V2210/57

摘要： The present invention provides method of interpolating spatially aliased seismic data. This method produces high resolution interpolated data based on a locally planar model of reflection events using a two dimensional power diversity slant stack process that transforms the data from the t-x-y domain to t-xslope-yslope domain. The present invention further provides an improved technique for the 3D interpolation of aliased events and is applicable to the interpolation of 2D seismic data.

公开(公告)号：US5309360A

公开(公告)日：1994-05-03

申请号：US704363

申请日：1991-05-23

申请人： David J. Monk ,  Cameron B. Wason

发明人： David J. Monk ,  Cameron B. Wason

IPC分类号： G01V1/36 ,  G06F15/21

CPC分类号： G01V1/364 ,  G01V2210/56

摘要： To eliminate undesirable energy recorded during seismic surveying, a trace that models the undesirable energy on the recorded data trace is prepared. The model trace is first estimated using a suitable technique, such as wavefield extrapolation. Then, the model trace is modified using a best estimate of the amplitude, phase and time delay differences between the model trace and the data trace. The estimated amplitude, phase and time delay differences may be used to design a cross-equalization filter, which is used to cross-equalize the model trace with the data trace. Alternatively, the best estimate determination may include using a weighted sum of the model trace, its imaginary component, and their derivatives. When weighted and summed together, these components form a cross-equalized model trace that closely approximates the undesirable energy on the recorded data trace. Lastly, the cross-equalized model trace is subtracted from the data trace to substantially eliminate the undesirable energy.

摘要翻译： 为了消除地震测量期间记录的不良能量，准备了对记录的数据轨迹上的不需要的能量进行建模的轨迹。 首先使用合适的技术估计模型轨迹，例如波场外推法。 然后，使用模型轨迹和数据轨迹之间的幅度，相位和时间延迟差异的最佳估计来修改模型轨迹。 估计的幅度，相位和时间延迟差异可用于设计交叉均衡滤波器，用于将模型轨迹与数据跟踪进行交叉均衡。 或者，最佳估计确定可以包括使用模型轨迹，其虚部和其导数的加权和。 当加权和相加在一起时，这些组件形成了一个十分均衡的模型轨迹，其近似于记录的数据轨迹上的不期望的能量。 最后，从数据跟踪中减去交叉均衡的模型轨迹，以基本上消除不需要的能量。

公开(公告)号：US4458339A

公开(公告)日：1984-07-03

申请号：US193998

申请日：1980-10-06

申请人： Cameron B. Wason

发明人： Cameron B. Wason

IPC分类号： G01V1/00 ,  G01V1/24 ,  G01V1/22 ,  G01V1/28

CPC分类号： G01V1/005 ,  G01V1/247

摘要： A method of seismic prospecting is disclosed in which the seismic source is excited in such a manner as to maximize the use of the energy generated by the seismic source. In certain cases it may be desirable to convert the received seismic signals to their frequency domain counterparts before performing subsequent processing. Such conversion may be performed using the discrete Fourier transform with the result that transformed values are obtained only at certain discrete frequencies. It may further be desirable that processing be performed only at subsets of the total set of discrete frequencies with the values at the remaining frequencies being discarded. In the practice of the present invention, source energy is generated only at those discrete frequencies at which subsequent processing is to be performed. As a result there is substantially no source energy in the transform values at the frequencies which are discarded.

摘要翻译： 公开了一种地震勘探方法，其中以使得由地震源产生的能量最大化的方式激发地震源。 在某些情况下，可能需要在执行后续处理之前将接收到的地震信号转换成它们的频域对应物。 可以使用离散傅里叶变换来执行这种转换，结果是仅在某些离散频率处获得变换值。 可以进一步期望的是，处理仅在总的离散频率集合的子集中执行，其中剩余频率的值被丢弃。 在本发明的实践中，仅在将要进行后续处理的离散频率处产生源能量。 结果，在被丢弃的频率处的变换值中基本上没有源能量。

公开(公告)号：US4616352A

公开(公告)日：1986-10-07

申请号：US435124

申请日：1982-10-18

申请人： John J. Sallas ,  Toby R. Trevino ,  Haroon I. Alvi ,  John S. Shoffner ,  Cameron B. Wason

发明人： John J. Sallas ,  Toby R. Trevino ,  Haroon I. Alvi ,  John S. Shoffner ,  Cameron B. Wason

IPC分类号： G01V1/04 ,  G01V1/02

CPC分类号： G01V1/04

摘要： A vibrator seismic source has a sweep generator for providing a pilot signal and sensors for generating a feedback signal representative of the force imparted to the ground by the vibrator pad. Circuitry is incorporated for separating the fundamental signal from the feedback signal and for separating the distortion from the feedback signal. Means are provided for generating a control signal for controlling the action of the vibrator, the control signal being reduced or increased by the difference between the pilot signal and the fundamental signal, and further reduced by the distortion, if any. A threshold circuit is employed to ignore distortion below the threshold level and a threshold circuit is provided to ignore differences in amplitude between the pilot and fundamental signals when the difference is below the threshold. Additionally, the control system employs a phase detector circuit that outputs any phase difference between the feedback and pilot signals. The phase difference is applied to the control signal to shift the feedback signal phase to correspond to the pilot signal.

摘要翻译： 振动器地震源具有用于提供导频信号的扫描发生器和用于产生表示由振动器垫传递给地面的力的反馈信号的传感器。 引入电路用于将基本信号与反馈信号分离，并将失真与反馈信号分离。 提供了用于产生用于控制振动器的作用的控制信号的装置，通过导频信号和基本信号之间的差异来减小或增加控制信号，并且进一步减少失真（如果有的话）。 阈值电路用于忽略低于阈值电平的失真，并且提供阈值电路以在差值低于阈值时忽略导频信号和基本信号之间的幅度差异。 此外，控制系统采用相位检测器电路，其输出反馈和导频信号之间的任何相位差。 将相位差施加到控制信号，以使反馈信号相位相应于导频信号。

公开(公告)号：US4969130A

公开(公告)日：1990-11-06

申请号：US414928

申请日：1989-09-29

申请人： Cameron B. Wason ,  Geoffrey A. King ,  Edward L. Shuck ,  E. Allen Breitenbach ,  Robert C. McFarlane

发明人： Cameron B. Wason ,  Geoffrey A. King ,  Edward L. Shuck ,  E. Allen Breitenbach ,  Robert C. McFarlane

IPC分类号： E21B49/00 ,  G01V1/42

CPC分类号： G01V1/42 ,  E21B49/00 ,  G01V2210/161

摘要： A system of monitoring the fluid contents of a petroleum reservoir, wherein a reservoir model is employed to predict the fluid flow in the reservoir, includes a check on the reservoir model by comparison of synthetic seismograms with the observed seismic data. If the synthetic output predicted by the model agrees with the observed seismic data, then it is assumed that the reservoir is being properly worked. If not then the reservoir model, in particular its reservoir description, is updated until it predicts the observed seismic response. The seismic survey may be periodically repeated during the productive life of the reservoir and the technique used to update the reservoir model so as to ensure that the revised reservoir description predicts the observed changes in the seismic data and hence reflects the current status of fluid saturations. Implementation of this invention results in more efficient reservoir management.

摘要翻译： 一种监测石油储层的流体含量的系统，其中使用储层模型来预测储层中的流体流动，包括通过将合成地震图与观测的地震数据进行比较来检查储层模型。 如果模型预测的合成输出与观测到的地震数据一致，则假定水库正在正常工作。 如果不是，则储层模型，特别是其储层描述被更新，直到其预测观测到的地震反应。 在储层的生产寿命期间可以周期性地重复地震勘测，以及用于更新储层模型的技术，以确保经修改的储层描述预测观测到的地震数据变化，从而反映当前的流体饱和状态。 本发明的实施导致更有效的储层管理。

公开(公告)号：US4878204A

公开(公告)日：1989-10-31

申请号：US264090

申请日：1988-10-28

申请人： James L. Black ,  Cameron B. Wason

发明人： James L. Black ,  Cameron B. Wason

IPC分类号： G01V1/28 ,  G01V1/36

CPC分类号： G01V1/362 ,  G01V1/282 ,  G01V2210/522 ,  G01V2210/614

摘要： A method for carrying out dip moveout correction on seismic data which provides true-amplitude seismic images is provided. A calibration process is used to design a set of filters that correct the seismic amplitudes during dip moveout correction so as to provide true-amplitude imaging. These filtrs can be designed and applied in any known implementation of dip-moveout, in three or two dimensions.

摘要翻译： 提供了一种提供真实振幅地震图像的地震数据倾斜偏移校正方法。 校准过程用于设计一组滤波器，用于校正倾斜偏移校正期间的地震振幅，以提供真实幅度成像。 这些过滤器可以在三维或二维的任何已知的浸渍移动实施中被设计和应用。

公开(公告)号：US4654836A

公开(公告)日：1987-03-31

申请号：US435125

申请日：1982-10-18

申请人： Cameron B. Wason

发明人： Cameron B. Wason

IPC分类号： G01V1/04 ,  G01V1/16

CPC分类号： G01V1/04

摘要： A vibrator seismic source has a hydraulic system, including a pad, for applying reciprocating forces to the ground and sensor means for generating a feedback signal representative of the force applied to the ground. Circuitry is provided for generating a pilot signal representative of the desired force to be applied to the ground. The pilot and feedback signals are single sideband shifted to increase both frequencies by a predetermined frequency. The high frequency pilot and feedback signals have their phase difference conventionally detected and provided to a digital computer for phase shifting the signal for controlling the vibrator so that the feedback signal is in phase with the pilot signal. In another embodiment, the instantaneous phase of each signal is computed continuously by a digital computer. The control signal digital representation is corrected to correspond with the pilot digital representation and an analog output signal is generated to provide the proper analog control signal.

摘要翻译： 振动器地震源具有液压系统，包括用于向地面施加往复力的垫，以及用于产生代表施加到地面的力的反馈信号的传感器装置。 电路被提供用于产生代表要施加到地面的期望力的导频信号。 导频和反馈信号是单边带移位的，以将两个频率增加预定频率。 高频导频和反馈信号具有常规检测的相位差，并提供给数字计算机，用于相位控制振动器的信号，使得反馈信号与导频信号同相。 在另一个实施例中，每个信号的瞬时相位由数字计算机连续计算。 校正控制信号数字表示以对应于导频数字表示，并产生模拟输出信号以提供适当的模拟控制信号。