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公开(公告)号：US20240329268A1
公开(公告)日：2024-10-03
申请号：US18193793
申请日：2023-03-31
CPC分类号： G01V1/368 , E21B44/00 , G01V2210/22 , G01V2210/43 , G01V2210/44 , G01V2210/48 , G01V2210/56
摘要： Examples of methods and systems are disclosed. The methods include obtaining seismic data regarding a subsurface region of interest, wherein the seismic data comprises time-space pressure data. The methods also include determining, using a seismic processor, a pressure derivative with respect to depth. The methods further include determining, using the seismic processor, a phase-shifted pressure derivative. The methods still further include determining, using the seismic processor, a transformed phase-shifted pressure derivative. The methods also include determining, using the seismic processor, transformed phase-shifted pressure data based, at least in part, on the transformed phase-shifted pressure derivative. The methods further include determining, using the seismic processor, time-space filtered pressure data. The methods still further include determining, using the seismic processor, a first direction wavefield and a second direction wavefield. The methods also include generating, using the seismic processor, a seismic image based, at least in part, on the first direction wavefield.
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公开(公告)号：US12099157B2
公开(公告)日：2024-09-24
申请号：US18093131
申请日：2023-01-04
申请人： PGS Geophysical AS
CPC分类号： G01V1/3808 , G01V1/223 , G01V1/282 , G01V1/307 , G06F17/18 , G01V2210/32 , G01V2210/48
摘要： One or more first sensors may be configured to sense seismic signals and one or more second sensors may be configured to sense electromagnetic crosstalk signals. The second sensors are not responsive to the seismic signals. The data from the first and second sensors may be recorded as first data and second data, respectively. The first data may be modified based on the second data to remove the electromagnetic crosstalk noise form the seismic data.
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公开(公告)号：US20240302556A1
公开(公告)日：2024-09-12
申请号：US18181418
申请日：2023-03-09
发明人： Jinsong WANG , Saleh A. DOSSARY
IPC分类号： G01V1/36
CPC分类号： G01V1/364 , G01V2210/324 , G01V2210/48
摘要： In certain embodiments, a system includes a processor and a memory storing machine readable instructions executable by the processor, the machine readable instructions including a seismic image analysis tool having a wavelet packet transformer to generate sub-images of a received seismic image, a sub-image filter to perform noise suppression and edge detection on each sub-image, an inverse wavelet packet transformer to reconstruct higher level sub-images or seismic image from filtered sub-images, and a sub-image merger to recursively merge a sub-image and a reconstructed sub-image.
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公开(公告)号：US20190250293A1
公开(公告)日：2019-08-15
申请号：US16394444
申请日：2019-04-25
申请人： PGS Geophysical AS
CPC分类号： G01V1/30 , G01V1/325 , G01V1/364 , G01V1/38 , G01V2210/121 , G01V2210/1423 , G01V2210/46 , G01V2210/48 , G01V2210/56 , G01V2210/675
摘要： Prediction and subtraction of multiple diffractions may include transforming previously acquired seismic data from a time-space domain to a transformed domain using a dictionary of compressive basis functions and separating, within the transformed previously acquired seismic data, a first portion and a second portion of the transformed previously acquired seismic data. Prediction and subtraction of multiple diffractions may also include predicting a plurality of multiple diffractions based on the separated first and second portions and adaptively subtracting the predicted multiple diffractions from the previously acquired seismic data. Prediction and subtraction of multiple diffractions may also include inverse transforming a particular seismic data set from the transformed domain to the time-space domain.
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公开(公告)号：US09519073B2
公开(公告)日：2016-12-13
申请号：US14427876
申请日：2012-11-01
CPC分类号： G01V1/48 , G01V1/184 , G01V1/22 , G01V1/24 , G01V1/32 , G01V1/325 , G01V1/34 , G01V2200/16 , G01V2210/1299 , G01V2210/1429 , G01V2210/43 , G01V2210/48 , G01V2210/6222
摘要： In some embodiments, apparatus and systems, as well as methods, may operate to shift signal data associated with a set of receivers, in time or phase with respect to signal data associated with a receiver reference point, to transform the signal data into shifted data, wherein the signal data corresponds to energy waves propagated through a geological formation before being received by the set of receivers; to multiply the shifted data by a complex conjugate of the signal data associated with the receiver reference point to provide differential phase values; to sum and average the differential phase values to provide differential phase semblance values; and to publish the differential phase semblance values, or information derived from the differential phase semblance values to one of a storage medium, a hardcopy printout, or a display. Additional apparatus, systems, and methods are disclosed.
摘要翻译： 在一些实施例中，设备和系统以及方法可以操作以相对于与接收机参考点相关联的信号数据在时间或相位上移位与一组接收器相关联的信号数据，以将信号数据变换成移位数据 ，其中所述信号数据对应于在被所述一组接收器接收之前通过地质构造传播的能量波; 将移位的数据乘以与接收机参考点相关联的信号数据的复共轭，以提供差分相位值; 求和并平均差分相位值以提供差分相位相似值; 并且将差分相位相似度值或从差分相位相似值导出的信息发布到存储介质，硬拷贝打印输出或显示器之一。 公开了附加装置，系统和方法。
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6.发明申请METHOD AND SYSTEM FOR BURIED LAND MINE DETECTION THROUGH DERIVATIVE ANALYSIS OF LASER INTERFEROMETRY 有权通过激光干涉法的衍生分析方法和系统对陆地矿井进行检测公开(公告)号：US20160054270A1
公开(公告)日：2016-02-25
申请号：US14800145
申请日：2015-07-15
发明人： Eric M. LOUCHARD
CPC分类号： G01V8/12 , G01V1/226 , G01V1/28 , G01V2210/121 , G01V2210/48
摘要： A method of detecting land mines includes pre-processing a raw laser interferometer image, processing pre-processed image by calculating one or more derivatives having one or more peaks, along vectors extending in at least two different directions, mapping the peaks of said derivatives to create a derivative map, and detecting an anomalous signature in the derivative map.
摘要翻译： 一种检测地雷的方法包括对原始激光干涉仪图像进行预处理，通过计算具有一个或多个峰的一个或多个导数，沿着至少两个不同方向延伸的向量处理预处理图像，将所述导数的峰映射到 创建衍生图，并检测衍生图中的异常签名。
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公开(公告)号：US20150253447A1
公开(公告)日：2015-09-10
申请号：US14427876
申请日：2012-11-01
CPC分类号： G01V1/48 , G01V1/184 , G01V1/22 , G01V1/24 , G01V1/32 , G01V1/325 , G01V1/34 , G01V2200/16 , G01V2210/1299 , G01V2210/1429 , G01V2210/43 , G01V2210/48 , G01V2210/6222
摘要： In some embodiments, apparatus and systems, as well as methods, may operate to shift signal data associated with a set of receivers, in time or phase with respect to signal data associated with a receiver reference point, to transform the signal data into shifted data, wherein the signal data corresponds to energy waves propagated through a geological formation before being received by the set of receivers; to multiply the shifted data by a complex conjugate of the signal data associated with the receiver reference point to provide differential phase values; to sum and average the differential phase values to provide differential phase semblance values; and to publish the differential phase semblance values, or information derived from the differential phase semblance values to one of a storage medium, a hardcopy printout, or a display. Additional apparatus, systems, and methods are disclosed.
摘要翻译： 在一些实施例中，设备和系统以及方法可以操作以相对于与接收机参考点相关联的信号数据在时间或相位上移位与一组接收器相关联的信号数据，以将信号数据变换成移位数据 ，其中所述信号数据对应于在被所述一组接收器接收之前通过地质构造传播的能量波; 将移位的数据乘以与接收机参考点相关联的信号数据的复共轭，以提供差分相位值; 求和并平均差分相位值以提供差分相位相似值; 并且将差分相位相似度值或从差分相位相似值导出的信息发布到存储介质，硬拷贝打印输出或显示器之一。 公开了附加装置，系统和方法。
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公开(公告)号：US09030912B2
公开(公告)日：2015-05-12
申请号：US13175817
申请日：2011-07-01
IPC分类号： G01V1/28
CPC分类号： G01V1/286 , G01V2210/48 , G01V2210/586
摘要： An approach is provided for a multi-component seismic data processing that separates P-type and S-type seismic waves in an affine coordinate system. A method for separating and composing seismic waves comprises: determining base vectors of the seismic waves; transforming and separating the seismic wave in an affine coordinate system; and obtaining a signal with true amplitudes and eliminating a mode leakage phenomenon. Therefore, the method achieves the wave separation and recovers the amplitudes of separated waves simultaneously, which reduces noises to provide more precisely seismic data and to satisfy the requirement of seismic data analysis and processing.
摘要翻译： 提供了一种用于在仿射坐标系中分离P型和S型地震波的多分量地震数据处理的方法。 一种用于分离和组合地震波的方法包括：确定地震波的基矢量; 在仿射坐标系中转换和分离地震波; 并获得具有真实幅度的信号并消除模式泄漏现象。 因此，该方法实现了波分离，同时恢复了分离波的振幅，减少了噪声，提供了更精确的地震数据，满足了地震数据分析与处理的要求。
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公开(公告)号：US08538702B2
公开(公告)日：2013-09-17
申请号：US12602413
申请日：2008-06-02
IPC分类号： G01V1/28
CPC分类号： G01V1/30 , G01V2210/48 , G01V2210/63
摘要： Method for identifying geologic features, such as hydrocarbon indicators, from geophysical data, such as seismic data, by taking a curvelet transform of the data. After the curvelet representation of the data is computed (350), selected geophysical data attributes and their interdependencies are extracted (355), from which geological features may be identified (360), either from attribute data volumes that are created or directly from the curvelet representation.
摘要翻译： 通过对数据进行曲线变换，从地球物理数据（如地震数据）中识别地质特征，如碳氢化合物指标的方法。 在计算数据的曲线图表示（350）之后，提取所选择的地球物理数据属性及其相互依赖关系（355），从中可以识别地质特征（360），从创建的属性数据卷或直接从曲线图 表示。
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10.发明申请公开(公告)号：US20110242937A1
公开(公告)日：2011-10-06
申请号：US12798136
申请日：2010-03-30
申请人： Walter Söllner , Stian Hegna
发明人： Walter Söllner , Stian Hegna
IPC分类号： G01V1/00
CPC分类号： G01V1/325 , G01V1/189 , G01V1/362 , G01V1/38 , G01V2210/142 , G01V2210/48 , G01V2210/6161
摘要： A measured pressure field, a measured vertical velocity field, and two measured orthogonal horizontal velocity fields are obtained. A programmable computer is used to perform the following. A scaling factor is determined from water acoustic impedance, the measured pressure field, and the horizontal velocity fields. One of the measured pressure field and measured vertical velocity field is combined with one of the measured vertical velocity field scaled by the scaling factor and the measured pressure field scaled by the scaling factor, generating one of up-going and down-going pressure and velocity wavefields.
摘要翻译： 获得测量的压力场，测量的垂直速度场和两个测量的正交水平速度场。 可编程计算机用于执行以下操作。 缩放系数由水声阻抗，测量压力场和水平速度场确定。 测量的压力场和测量的垂直速度场中的一个与通过缩放因子缩放的测量的垂直速度场和由缩放因子缩放的测量压力场相结合，产生上升和下降的压力和速度之一 波场
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