公开(公告)号：WO2017182518A1

公开(公告)日：2017-10-26

申请号：PCT/EP2017/059281

申请日：2017-04-19

Applicant: PGS GEOPHYSICAL AS

Inventor： KLUVER, Tilman ,  HEGNA, Stian

IPC: G01V1/48 ,  G01V1/36 ,  G01V1/37

CPC classification number: G01V1/36 ,  G01V1/368 ,  G01V1/37 ,  G01V1/3808 ,  G01V1/48 ,  G01V2210/1293 ,  G01V2210/1423 ,  G01V2210/1427 ,  G01V2210/21 ,  G01V2210/24

Abstract: Estimating an earthresponsecan includedeconvolving a multi-dimensional source wavefieldfrom near-continuously recorded seismic data recorded ata receiver position. The deconvolving can include spreading the near-continuously recorded seismic dataacross a plurality ofpossible source emission angles. The result of the deconvolution can bethe earth response estimate.

Abstract translation: 估计地球响应可以包括将来自记录在接收器位置处的接近连续记录的地震数据的多维源波场进行解卷积。 去卷积可以包括将接近连续记录的地震数据遍布多个可能的源发射角度。 去卷积的结果可以是地球响应估计值。

公开(公告)号：WO2016110738A1

公开(公告)日：2016-07-14

申请号：PCT/IB2015/002626

申请日：2015-12-18

Applicant: CGG SERVICES SA

Inventor： POOLE, Gordon ,  PENG, Can

IPC: G01V1/37

CPC classification number: G01V1/375 ,  G01V1/366 ,  G01V1/368 ,  G01V2210/1214 ,  G01V2210/24 ,  G01V2210/3246 ,  G01V2210/614

Abstract: Methods for processing seismic data acquired with non-impulsive moving sources are provided. Some methods remove cross-talk noise from the seismic data using emitted signal data and an underground formation's response estimate, which may be iteratively enhanced. Some methods perform resampling before a spatial or a spatio-temporal inversion. Some methods compensate for source's motion during the inversion, and/or are usable for multiple independently moving sources.

Abstract translation: 提供了用非冲击式移动源处理地震数据的方法。 一些方法使用发射的信号数据和地下地层的响应估计来从地震数据中消除串扰噪声，这可以迭代增强。 一些方法在空间或时空反演之前进行重采样。 一些方法在反转期间补偿源的运动，和/或可用于多个独立移动的源。

公开(公告)号：WO2016168280A1

公开(公告)日：2016-10-20

申请号：PCT/US2016/027261

申请日：2016-04-13

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION ,  SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  GEOQUEST SYSTEMS B.V.

Inventor： VASSALLO, Massimiliano ,  RAS, Paul ,  OZBEK, Ali ,  EL ALLOUCHE, Nihed ,  KAMIL AMIN, Yousif Izzeldin

IPC: G01V1/28 ,  G01V1/34

CPC classification number: G01V1/364 ,  G01V1/325 ,  G01V2210/21 ,  G01V2210/24 ,  G01V2210/27 ,  G01V2210/32 ,  G01V2210/34 ,  G01V2210/45 ,  G01V2210/57

Abstract: A method includes obtaining seismic data including measurements of a seismic wavefield and obtaining at least one component of a spatial gradient of the measurements of the seismic wavefield. The method includes determining a representation of the seismic data based at partially on the measurements and the at least one component of the spatial gradient and identifying a signal of interest and noise in the representation of the seismic data based at least partially on different characteristics of the signal of interest and the noise in a domain of the representation. The method includes calculating at least one of a signal model or a noise model from the signal of interest and noise identified in the representation of the seismic data and determining a noise attenuated signal for the seismic data based at least partially on the at least one of the signal model or the noise model.

Abstract translation: 一种方法包括获得包括地震波场测量值的地震数据，并获得地震波场测量的空间梯度的至少一个分量。 该方法包括基于部分地测量和空间梯度的至少一个分量来确定地震数据的表示，并且至少部分地基于不同的特征来识别地震数据的表示中的感兴趣的信号和噪声 感兴趣的信号和表示的域中的噪声。 该方法包括从地震数据的表示中识别的感兴趣的信号和噪声中计算信号模型或噪声模型中的至少一个，并且至少部分地基于地震数据的表示中的至少一个来确定地震数据的噪声衰减信号 信号模型或噪声模型。

公开(公告)号：WO2016093881A1

公开(公告)日：2016-06-16

申请号：PCT/US2015/031945

申请日：2015-05-21

Applicant: CHEVRON U.S.A. INC.

Inventor： HAMPSON, Gary

IPC: G01V1/36

CPC classification number: G01V1/364 ,  G01V1/38 ,  G01V2210/21 ,  G01V2210/22 ,  G01V2210/24 ,  G01V2210/324

Abstract: Computer-implemented method of low-cut filtering a seismic trace recorded over a recording time window, the method comprising: applying a causal low-cut filter to the seismic trace to generate first filtered data; applying an anti-causal low-cut filter to the seismic trace to generate second filtered data; truncating the first filtered data to generate first truncated data based on the recording time window; truncating the second filtered data to generate second truncated data based on the recording time window; removing the phase of the first truncated data; removing the phase of the second truncated data; selecting a portion of the first phase-removed truncated data to generate first modified data, the selected portion of the first phase-removed truncated data being associated with a later time interval of the seismic trace; selecting a portion of the second phase-removed truncated data to generate second modified data, the selected portion of the second phase-removed truncated data being associated with an earlier time interval of the seismic trace; and generating a low-cut filtered seismic trace by combining at least the first modified data and the second modified data.

Abstract translation: 计算机实现的方法，对在记录时间窗口上记录的地震迹线进行低切滤波，该方法包括：对地震迹线应用因果低切滤波器以产生第一滤波数据; 将抗因果低切滤波器应用于地震迹线以产生第二滤波数据; 基于记录时间窗截断第一经滤波数据以产生第一截断数据; 基于记录时间窗截断第二滤波数据以产生第二截断数据; 去除第一截断数据的相位; 去除第二截断数据的相位; 选择所述第一相移除的截断数据的一部分以生成第一修改数据，所述第一相移除截断数据的所选部分与所述地震迹线的稍后时间间隔相关联; 选择所述第二相移除截断数据的一部分以产生第二修改数据，所述第二相移除截断数据的所选部分与所述地震迹线的较早时间间隔相关联; 以及通过至少组合所述第一修改数据和所述第二修改数据来生成低切滤波地震迹线。

公开(公告)号：WO2016090354A1

公开(公告)日：2016-06-09

申请号：PCT/US2015/064198

申请日：2015-12-07

Applicant: WESTERNGECO LLC ,  SCHLUMBERGER CANADA LIMITED ,  SCHLUMBERGER TECHNOLOGY B.V.

Inventor： SALAMA, Antoun ,  MOORE, Ian

IPC: G01V1/28 ,  G01V1/30

CPC classification number: G01V1/364 ,  G01V1/282 ,  G01V1/301 ,  G01V1/32 ,  G01V2210/24 ,  G01V2210/324 ,  G01V2210/34 ,  G01V2210/40

Abstract: A method can include receiving data in a data domain where a first portion of the data domain includes a signal to noise ratio that exceeds a signal to noise ratio in a second portion of the data domain; generating a model; in a transform domain, based at least in part on the model, filtering at least a portion of the data in the second portion of the data domain; and, based at least in part on the filtering, outputting noise attenuated data for at least a portion of the data in the second portion of the data domain.

Abstract translation: 一种方法可以包括在数据域中接收数据，其中数据域的第一部分包括在数据域的第二部分中超过信噪比的信噪比; 生成模型; 在变换域中至少部分地基于模型，对数据域的第二部分中的数据的至少一部分进行过滤; 并且至少部分地基于所述滤波来输出所述数据域的第二部分中的所述数据的至少一部分的噪声衰减数据。

公开(公告)号：WO2017106127A1

公开(公告)日：2017-06-22

申请号：PCT/US2016/066262

申请日：2016-12-13

Applicant: SAUDI ARABIAN OIL COMPANY ,  ARAMCO SERVICES COMPANY

Inventor： COLOMBO, Daniele ,  MIORELLI, Federico

IPC: G01V1/36

CPC classification number: G01V1/364 ,  G01V1/362 ,  G01V2210/24 ,  G01V2210/322 ,  G01V2210/53

Abstract: A surface-consistent refraction analysis method to automatically derive near surface corrections for seismic data processing. The method uses concepts from surface-consistent analysis applied to refracted arrivals. The key aspects of the method consist of the use of CMP-offset-azimuth binning, evaluation of mean travel time and standard deviation for each bin, rejection of anomalous first break (FB) picks, derivation of CMP-based travel time-offset functions, conversion to velocity-depth functions, evaluation of long wavelength statics and calculation of surface-consistent residual statics through waveform cross-correlation. Residual time lags are evaluated in multiple CMP-offset-azimuth bins by cross-correlating a pilot trace with all the other traces in the gather where the correlation window is centered at the refracted arrival. The residuals are then used to build a system of linear equations that is simultaneously inverted for surface-consistent shot and receiver time shift corrections plus a possible subsurface residual term. All the steps are completely automated and require a fraction of the time needed for conventional near surface analysis.

Abstract translation: 地面一致性折射分析方法，用于自动推导地震数据处理的近地表校正。 该方法使用应用于折射到达的表面一致性分析的概念。 该方法的关键方面包括使用CMP偏移量 - 方位角分档，评估每个垃圾箱的平均行程时间和标准偏差，拒绝异常初爆（FB）拾取，推导基于CMP的行程时间偏移函数 ，转换为速度 - 深度函数，评估长波长静力学以及通过波形互相关计算表面一致的剩余静力学。 通过将导频迹线与其中相关窗口以折射到达为中心的聚集中的所有其他迹线交叉相关，在多个CMP偏移量 - 方位角箱中评估剩余时间滞后。 然后使用残差建立一个线性方程组，同时对表面一致的镜头和接收机时间偏移校正加上一个可能的子表面剩余项进行倒置。 所有的步骤都是完全自动化的，只需要传统近表面分析所需的时间的一小部分。

公开(公告)号：WO2016053945A1

公开(公告)日：2016-04-07

申请号：PCT/US2015/052804

申请日：2015-09-29

Applicant: BP CORPORATION NORTH AMERICA INC. ,  HORNBY, Brian, Edward ,  ABMA, Raymond, Lee ,  HOWE, David, John ,  ZHOU, Min ,  NARANJO, John

Inventor： HORNBY, Brian, Edward ,  ABMA, Raymond, Lee ,  HOWE, David, John ,  ZHOU, Min ,  NARANJO, John

IPC: G01V1/36 ,  G01V1/38 ,  G01V1/42 ,  G01V1/46 ,  G01V1/48

CPC classification number: G01V1/3808 ,  G01V1/364 ,  G01V1/42 ,  G01V1/46 ,  G01V1/48 ,  G01V2210/1212 ,  G01V2210/1293 ,  G01V2210/1299 ,  G01V2210/1429 ,  G01V2210/161 ,  G01V2210/24

Abstract: A method for use in vertical seismic profiling includes: independently shooting a plurality of seismic sources in a plurality of shooting areas to impart seismic signals into a water bottom where the sources are shot simultaneously within a common time window; receiving reflections of the seismic signals from a subterranean formation beneath the water bottom at a plurality of seismic receivers; and recording the received reflections; wherein the seismic receivers are disposed in a wellbore in the water bottom.

Abstract translation: 一种在垂直地震剖面中使用的方法包括：独立地在多个拍摄区域中拍摄多个地震源，以将地震信号传播到水底，在同一时间窗口内同时射击源; 在多个地震接收器处接收来自水底下的地下地层的地震信号的反射; 并记录接收到的反射; 其中地震接收器设置在水底部的井眼中。

公开(公告)号：WO2012018622A1

公开(公告)日：2012-02-09

申请号：PCT/US2011/045362

申请日：2011-07-26

Applicant: BP CORPORATION NORTH AMERICA INC. ,  ABMA, Raymond, L.

Inventor： ABMA, Raymond, L.

IPC: G01V1/28 ,  G01V1/36 ,  G01V1/00

CPC classification number: G01V1/00 ,  G01V1/005 ,  G01V1/36 ,  G01V1/368 ,  G01V1/37 ,  G01V2210/24

Abstract: This is a method of separating simultaneous sources that uses an inversion-type approach. Each source will preferably activated at a random time with respect to the others. These random delays tend to make the interference between sources incoherent while the reflections create coherent events within a series of shots. The shot separation is performed via a numerical inversion process that utilizes the sweeps for each shot, the start times of each shot, and the coherence of reflection events between nearby shots. Implementation of this method will allow seismic surveys to be acquired faster and cheaper.

Abstract translation: 这是一种分离使用反演型方法的同时源的方法。 每个源将优选地以相对于其它源的随机时间被激活。 这些随机延迟倾向于使源之间的干扰不连贯，而反射在一系列镜头中产生相干事件。 拍摄分离是通过利用每次拍摄的扫描，每次拍摄的开始时间以及附近拍摄之间的反射事件的一致性的数值反演处理进行的。 这种方法的实施将使地震勘测更快更便宜。

公开(公告)号：WO2017160424A1

公开(公告)日：2017-09-21

申请号：PCT/US2017/016972

申请日：2017-02-08

Applicant: EXXONMOBIL UPSTREAM RESEARCH COMPANY ,  ANDERSON, John, E. ,  NORRIS, Michael, W. ,  WANG, Haiyang ,  CHA, Young, Ho

Inventor： ANDERSON, John, E. ,  NORRIS, Michael, W. ,  WANG, Haiyang ,  CHA, Young, Ho

IPC: G01V1/28 ,  G01V1/36 ,  G01V1/38

CPC classification number: G01V1/362 ,  G01V1/282 ,  G01V1/288 ,  G01V1/366 ,  G01V1/38 ,  G01V1/3808 ,  G01V2210/1212 ,  G01V2210/1293 ,  G01V2210/1423 ,  G01V2210/24 ,  G01V2210/52 ,  G01V2210/56 ,  G01V2210/59

Abstract: A method for obtaining zero-offset and near zero offset seismic data from a marine survey, with separation of direct arrival information and reflectivity information, the method including: modeling a direct arrival estimate at a passive near-field hydrophone array by using a notional source separation on active near-field hydrophone data; generating reflection data for the passive near-field hydrophone array by subtraction of the modeled direct wave from data recorded by the passive near-field hydrophone array; generating near zero-offset reflectivity traces by stacking the reflection data for the passive near-field hydrophone array on a string-by-string basis or on a combination of strings basis; generating reflectivity information at the active near-field hydrophone array by subtracting the direct arrival estimate modeled using the notional source separation from the active near-field hydrophone data; and generating an estimate of zero-offset reflectivity traces by calculating a cross-correlation between the between the reflectivity information at the active near-field hydrophone array and the near zero-offset traces and performing an optimized stacking with summation weights based on coefficients of the cross-correlation.

Abstract translation: 一种用于从海洋调查中获得零偏移和接近零偏移的地震数据的方法，其中分离直接到达信息和反射率信息，所述方法包括：在被动近距离信息模型中对直接到达估计进行建模， 通过使用主动近场水听器数据上的理论源分离来确定现场水听器阵列; 通过从无源近场水听器阵列记录的数据中减去模型化的直接波来产生无源近场水听器阵列的反射数据; 通过以逐串为基础或基于串的组合来堆叠无源近场水听器阵列的反射数据来产生接近零偏移的反射率迹线; 通过从有源近场水听器数据减去使用理论源分离建模的直接到达估计，在有源近场水听器阵列处产生反射率信息; 以及通过计算主动近场水听器阵列处的反射率信息与近零偏移迹线之间的互相关来生成零偏移反射率迹线的估计，并基于系数 互相关。

公开(公告)号：WO2016042374A1

公开(公告)日：2016-03-24

申请号：PCT/IB2015/001486

申请日：2015-07-30

Applicant: CGG SERVICES SA

Inventor： ROHNKE, Jonas ,  POOLE, Gordon ,  HAACKE, Ross

IPC: G01V1/36

CPC classification number: G01V1/364 ,  G01V2210/127 ,  G01V2210/24 ,  G01V2210/3246

Abstract: A device, medium and method for deblending seismic data associated with a subsurface of the earth. The method includes receiving (1600) an input dataset generated by first and second sources S 1 and S 2 that are operating as simultaneous sources; arranging (1602) the input dataset based on the firing times of source S 1 ; applying (1604) with a computing system an annihilation filter to the arranged input dataset to estimate cross-talk noise; convolving (1606) the cross-talk noise estimate with an operator to form a signal estimate using the firing times of S 1 and S 2 ; and generating (1608) an image of the subsurface based on the signal estimate.

Abstract translation: 用于对与地球地下相关的地震数据进行拆除的装置，介质和方法。 该方法包括接收（1600）由作为同时源操作的第一和第二源S1和S2产生的输入数据集; 基于源S1的触发时间来排列（1602）输入数据集; 将（1604）与计算系统应用于排列的输入数据集的湮灭过滤器，以估计串扰噪声; 使用操作者卷积（1606）串扰噪声估计，以使用S1和S2的点火时间形成信号估计; 以及基于所述信号估计来生成（1608）所述地下图像。