公开(公告)号：EP3283729A1

公开(公告)日：2018-02-21

申请号：EP16780684.3

申请日：2016-04-13

申请人： Services Pétroliers Schlumberger ,  Geoquest Systems B.V.

发明人： AARRE, Victor

IPC分类号： E21B47/00 ,  G01V1/40 ,  G01V1/50

CPC分类号： G01V1/301 ,  G01V1/003 ,  G01V1/181 ,  G01V1/24 ,  G01V1/325 ,  G01V2210/1423 ,  G01V2210/1425 ,  G01V2210/1427 ,  G01V2210/1429 ,  G01V2210/21 ,  G01V2210/23 ,  G01V2210/43 ,  G01V2210/64

摘要： A method, apparatus, and program product analyze time-series data such as seismic data collected from a subsurface formation by splitting a time-series data set such as an individual seismic trace into a plurality of spectral components, each having an associated frequency, determining an instantaneous frequency for each spectral component, determining a frequency difference for each spectral component based at least in part on the associated and instantaneous frequencies therefor, and determining a tuning parameter based at least in part on the determined frequency difference of each spectral component. Doing so enables, for example, thin-bed structures in the subsurface formation to be identified, and in some instances, thicknesses of such structures to be determined.

公开(公告)号：EP2984595A4

公开(公告)日：2016-07-27

申请号：EP14779987

申请日：2014-03-12

申请人： WESTERNGECO SEISMIC HOLDINGS

发明人： FERBER RALF G ,  ÖZBEK ALI ,  VASSALLO MASSIMILIANO ,  TODHUNTER DAVID NIGEL

IPC分类号： G01V1/00 ,  G01V1/30 ,  G01V1/32

CPC分类号： G01V1/308 ,  G01V1/003 ,  G01V1/325 ,  G01V2210/40 ,  G01V2210/612

公开(公告)号：EP2778717A3

公开(公告)日：2016-01-27

申请号：EP14158634.7

申请日：2014-03-10

申请人： PGS Geophysical AS

发明人： van Borselen, Roald Gunnar ,  Hegge, Robertus F.

IPC分类号： G01V1/32

CPC分类号： G01V1/307 ,  G01V1/325 ,  G01V2210/57

摘要： One embodiment relates to a method of wavefield regularization for geophysical data acquisition of seismic geophysical data. Measured traces, are obtained from an array of sensors. For each grid point on a processing grid, best-fitting traces of the measured traces are found. Using the best-fitting traces, spectral amplitudes of down-going and up-going wavefields are computed. The down-going and up-going wavefields are subsequently transformed to an output grid in a space-time domain. Another embodiment relates to an apparatus for wavefield regularization of geophysical data acquisition. Other embodiments, aspects and features are also disclosed.

公开(公告)号：EP3140677B1

公开(公告)日：2018-06-27

申请号：EP15718561.2

申请日：2015-04-09

申请人： Total SA

发明人： AUDEBERT, François

IPC分类号： G01V1/36 ,  G01V1/32 ,  G01V1/30

CPC分类号： G01V1/303 ,  G01V1/308 ,  G01V1/325 ,  G01V1/36 ,  G01V2210/161 ,  G01V2210/25 ,  G01V2210/512 ,  G01V2210/53 ,  G01V2210/6122

公开(公告)号：EP3210048A4

公开(公告)日：2018-05-09

申请号：EP15853048

申请日：2015-10-23

申请人： SCHLUMBERGER TECHNOLOGY BV

发明人： KAMIL AMIN YOUSIF IZZELDIN ,  VASSALLO MASSIMILIANO

IPC分类号： G01V1/28 ,  G01V1/30 ,  G01V1/38

CPC分类号： G01V1/364 ,  G01V1/325 ,  G01V1/368 ,  G01V1/38 ,  G01V2210/1293 ,  G01V2210/1423 ,  G01V2210/21 ,  G01V2210/44 ,  G01V2210/56 ,  G01V2210/57

摘要： Systems, methods, and computer-readable media for estimating a component of a seismic wavefield. The method may include accessing marine seismic data comprising a plurality of discrete measurements of a seismic wavefield; processing the marine seismic data to determine a relationship between a plurality of components of the seismic wavefield and each of the discrete measurements; and estimating from the marine seismic data processed via the one or more processors, each component of the seismic wavefield separated from each of the other plurality of components of the seismic wavefield and evaluated at a predetermined position.

公开(公告)号：EP3132288A1

公开(公告)日：2017-02-22

申请号：EP15714839.6

申请日：2015-04-10

申请人： PGS Geophysical AS

发明人： HEGNA, Stian ,  PARKES, Gregg Ernest

IPC分类号： G01V1/00 ,  G01V1/38

CPC分类号： G01V1/003 ,  G01V1/28 ,  G01V1/325 ,  G01V1/36 ,  G01V1/3808 ,  G01V2210/00 ,  G01V2210/129 ,  G01V2210/42 ,  G01V2210/56 ,  G01V2210/59

摘要： A method for seismic data acquisition can include near-continuously recording seismic data received from a number of seismic receivers and triggering a plurality of source elements, based upon time and not based upon position, at a predefined sequence of times relative to a start of a near-continuous recording.

摘要翻译： 用于地震数据处理的方法可以包括获得基于触发时间获取的地震数据，而不是基于触发源元件的位置。 地震数据可以包括分裂记录中的近连续记录的地震数据。 分割记录可以拼接成一个单一的近乎连续的记录，以产生来自单个采集线的地震数据的轨迹。 可以通过对多个时间样本中的每一个执行空间位移来校正地震数据的运动，来处理地震数据。

公开(公告)号：EP3044612A1

公开(公告)日：2016-07-20

申请号：EP14762018.1

申请日：2014-09-11

申请人： CGG Services SA

发明人： PENG, Can ,  HUANG, Rongxin ,  XUAN, Yi

IPC分类号： G01V1/32 ,  G01V1/36

CPC分类号： G01V1/364 ,  G01V1/308 ,  G01V1/325 ,  G01V1/36 ,  G01V2210/25 ,  G01V2210/32 ,  G01V2210/324 ,  G01V2210/44 ,  G01V2210/612

摘要： Cooperative attenuation methods are applied to data sets acquired by surveying a same underground formation which therefore include substantially the same primary signal and different individual noise. The data sets are converted in a wavelet basis by applying a high angular resolution complex wavelet transform. When corresponding coefficients of the data set representations in the wavelet basis differ more than predefined thresholds the coefficients are attenuated as corresponding to noise.

摘要翻译： 合作衰减方法应用于通过调查同一地下地层其因此包括基本相同的主信号和不同的单独的噪声获得的数据集。 所述数据集通过施加高角分辨率复杂小波变换转换成波基。 当数据的相应的系数设定在波基表示区分超过预定义的阈值的更多的系数被衰减为对应于噪声。

公开(公告)号：EP2901180A2

公开(公告)日：2015-08-05

申请号：EP13748186.7

申请日：2013-07-30

申请人： Chevron U.S.A. Inc.

发明人： HENNENFENT, Gilles ,  BOLES, Karl ,  DANSEREAU, Yves

IPC分类号： G01V1/36

CPC分类号： G01V1/362 ,  G01V1/325 ,  G01V2210/322 ,  G01V2210/324

摘要： A system and method for processing a prestack seismic dataset with at least one smoothly varying (redundant) axis including transposing the prestack seismic dataset, slicing the prestack seismic dataset into depth or time slices with at least one redundant axis, processing the slices, and transposing the slices to create a processed seismic dataset. The redundant axis may be representative of offset, angle, azimuth, or time between time-lapse surveys. The processing may include filtering the slices to attenuate coherent or incoherent noise.

公开(公告)号：EP2375268B1

公开(公告)日：2012-12-05

申请号：EP11160517.6

申请日：2011-03-30

申请人： PGS Geophysical AS

发明人： Söllner, Walter ,  Hegna, Stian

IPC分类号： G01V1/36

CPC分类号： G01V1/325 ,  G01V1/189 ,  G01V1/362 ,  G01V1/38 ,  G01V2210/142 ,  G01V2210/48 ,  G01V2210/6161

公开(公告)号：EP4441331A1

公开(公告)日：2024-10-09

申请号：EP23704580.2

申请日：2023-01-12

申请人： Saudi Arabian Oil Company

发明人： YANG, Yunlai ,  LI, Wei

IPC分类号： E21B47/01 ,  E21B49/00 ,  G01V1/46 ,  G01V1/48

CPC分类号： E21B47/01 ,  E21B49/00 ,  E21B49/003 ,  G01V1/46 ,  G01V1/48 ,  G01V2210/121620130101 ,  G01V1/282 ,  G01V2210/61420130101 ,  G01V1/325 ,  G01V1/307