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公开(公告)号：US09857485B2
公开(公告)日：2018-01-02
申请号：US14207771
申请日：2014-03-13
申请人： WESTERNGECO L.L.C.
CPC分类号： G01V1/006 , G01V1/201 , G01V1/3808 , G01V1/3843 , G01V1/3861
摘要： A marine survey acquisition system. The system may include a vessel for towing a marine survey spread. The marine survey spread may include streamers, marine vibrators and a cable. The cable may be coupled to a respective streamer from among the streamers and one of the marine vibrators. The cable may power the respective streamer and the one of the marine vibrators. The one of the marine vibrators may emit energy at a high frequency range.
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公开(公告)号：US09618636B2
公开(公告)日：2017-04-11
申请号：US14209556
申请日：2014-03-13
申请人： WESTERNGECO L.L.C.
摘要： A technique includes towing at least one seismic source in connection with a survey of a structure; and operating the seismic source(s) to fire shots, where each shot is associated with a frequency sweep. The technique includes varying phases of the frequency sweeps from shot to shot according to a predetermined phase sequence to allow noise in an energy sensed by seismic sensors to be attenuated.
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3.发明授权公开(公告)号：US09594178B2
公开(公告)日：2017-03-14
申请号：US14273262
申请日：2014-05-08
申请人： WESTERNGECO L.L.C.
CPC分类号： G01V1/308 , G01V1/38 , G01V1/3808 , G01V1/3817 , G01V1/3843 , G01V1/3861
摘要： The technologies described herein include systems and methods for performing a first seismic survey and performing a second seismic survey after a predetermined amount of time has lapsed between the first seismic survey and the second seismic survey. The shot times and the shot positions of the second seismic survey may be substantially the same as the shot times and the shot positions of the first seismic survey. After performing the seismic surveys, seismic data generated by the first seismic survey may be processed to generate a first image, and seismic data generated by the second seismic survey may be processed to generate a second image. After generating the first and second images, a difference between the first image and the second image may be computed to generate a time lapse difference image.
摘要翻译： 本文描述的技术包括用于执行第一次地震测量并在第一次地震测量和第二次地震勘测之后经过预定时间的时间之后执行第二次地震勘测的系统和方法。 第二次地震测量的拍摄时间和拍摄位置可以与第一次地震勘测的拍摄时间和拍摄位置基本相同。 在执行地震勘测之后，可以处理由第一地震勘测产生的地震数据以产生第一图像，并且可以处理由第二地震勘测产生的地震数据以产生第二图像。 在产生第一和第二图像之后，可以计算第一图像和第二图像之间的差异以产生时间差分图像。
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公开(公告)号：US09010484B2
公开(公告)日：2015-04-21
申请号：US13916313
申请日：2013-06-12
申请人： WesternGeco L.L.C.
CPC分类号： G01V1/137 , G01V1/3808 , G01V2210/127
摘要： A seismic source array includes a first source and a second source. The first source has a first spectral output and the second source has a second spectral output different than the first spectral output. The first source has a first total volume different than a second total volume of the second source.
摘要翻译： 地震源阵列包括第一源和第二源。 第一光源具有第一光谱输出，第二光源具有不同于第一光谱输出的第二光谱输出。 第一源具有与第二源的第二总体积不同的第一总体积。
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公开(公告)号：US20140060957A1
公开(公告)日：2014-03-06
申请号：US13957285
申请日：2013-08-01
申请人： WesternGeco L.L.C.
IPC分类号： G01V1/143
CPC分类号： G01V1/143 , G01V1/006 , G01V1/047 , G01V1/053 , G01V1/108 , G01V1/116 , G01V1/13 , G01V1/133 , G01V1/137 , G01V1/38 , G01V1/3861
摘要： A method for selecting parameters of a seismic source array comprising a plurality of source elements each having a notional source spectrum is described, the method comprising calculating a ghost response function of the array; calculating directivity effects of the array; and adjusting the parameters of the array such that the directivity effects of the array are compensated by the ghost response to minimize angular variation of a far field response in a predetermined frequency range. A method for determining a phase center of a seismic source array is also related, the method comprising calculating a far field spectrum of the array at predetermined spherical angles, and minimizing the phase difference between the farfield spectra within a predetermined frequency range by adjusting a vertical reference position from which the spherical angles are defined.
摘要翻译： 描述了一种用于选择包括具有概念源频谱的多个源元件的地震源阵列的参数的方法，所述方法包括计算阵列的重影响应函数; 计算阵列的方向性效应; 以及调整阵列的参数，使得阵列的方向性效应被重影响应补偿，以使预定频率范围内的远场响应的角度变化最小化。 一种用于确定地震源阵列的相位中心的方法也是相关的，该方法包括以预定的球面角度计算阵列的远场光谱，并通过调整垂直方向来最小化预定频率范围内的远场光谱之间的相位差 定义球面角度的参考位置。
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公开(公告)号：US09753163B2
公开(公告)日：2017-09-05
申请号：US14366255
申请日：2013-01-11
申请人： WESTERNGECO L.L.C.
CPC分类号： G01V1/04 , G01V1/005 , G01V1/38 , G01V1/3861
摘要： Methods and apparatuses for acquiring marine seismic data to generate images or determine properties of an interior section of the Earth using simultaneous marine vibrator sweeps and methods for processing the acquired seismic data. Phase of sweeps produced by the marine vibrator(s) are controlled to provide for removal of crosstalk. The phases between marine vibrator sweeps may be random or controlled to have a predetermined/desired phase difference. The predetermined phases may be determined to minimize the crosstalk between sweeps based on known seismic velocity of the survey area.
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公开(公告)号：US09500761B2
公开(公告)日：2016-11-22
申请号：US14047664
申请日：2013-10-07
申请人： WESTERNGECO L.L.C.
CPC分类号： G01V1/3861 , G01V1/00 , G01V1/006 , G01V1/08 , G01V1/3808
摘要： A technique facilitates obtaining seismic data in a marine environment. An array of acoustic sources is deployed in a marine environment. The array can be utilized for creating acoustic pulses that facilitate the collection of data on subsea structures. The methodology enables optimization of acoustic source array performance to improve the collection of useful data during a seismic survey.
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公开(公告)号：US09645265B2
公开(公告)日：2017-05-09
申请号：US13957285
申请日：2013-08-01
申请人： WesternGeco L.L.C.
IPC分类号： G01V1/047 , G01V1/053 , G01V1/108 , G01V1/116 , G01V1/133 , G01V1/137 , G01V1/38 , G01V1/00 , G01V1/13 , G01V1/143
CPC分类号： G01V1/143 , G01V1/006 , G01V1/047 , G01V1/053 , G01V1/108 , G01V1/116 , G01V1/13 , G01V1/133 , G01V1/137 , G01V1/38 , G01V1/3861
摘要： A method for selecting parameters of a seismic source array comprising a plurality of source elements each having a notional source spectrum is described, the method comprising calculating a ghost response function of the array; calculating directivity effects of the array; and adjusting the parameters of the array such that the directivity effects of the array are compensated by the ghost response to minimize angular variation of a far field response in a predetermined frequency range. A method for determining a phase center of a seismic source array is also related, the method comprising calculating a far field spectrum of the array at predetermined spherical angles, and minimizing the phase difference between the farfield spectra within a predetermined frequency range by adjusting a vertical reference position from which the spherical angles are defined.
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公开(公告)号：US20140334257A1
公开(公告)日：2014-11-13
申请号：US14366255
申请日：2013-01-11
申请人： WESTERNGECO L.L.C.
IPC分类号： G01V1/04
CPC分类号： G01V1/04 , G01V1/005 , G01V1/38 , G01V1/3861
摘要： Methods and apparatuses for acquiring marine seismic data to generate images or determine properties of an interior section of the Earth using simultaneous marine vibrator sweeps and methods for processing the acquired seismic data. Phase of sweeps produced by the marine vibrator(s) are controlled to provide for removal of crosstalk. The phases between marine vibrator sweeps may be random or controlled to have a predetermined/desired phase difference. The predetermined phases may be determined to minimize the crosstalk between sweeps based on known seismic velocity of the survey area.
摘要翻译： 用于获取海洋地震数据以生成图像或确定地球内部部分的特性的方法和装置，使用同时的海洋振动器扫描和用于处理所获取的地震数据的方法。 由海洋振动器产生的扫描相位被控制以提供串扰的去除。 海洋振动器扫描之间的相位可以是随机的或被控制以具有预定/期望的相位差。 可以基于测量区域的已知地震速度来确定预定相位以最小化扫描之间的串扰。
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10.发明授权公开(公告)号：US08750073B2
公开(公告)日：2014-06-10
申请号：US13710149
申请日：2012-12-10
申请人： Westerngeco L.L.C.
IPC分类号： G01V1/00
CPC分类号： G01V1/308 , G01V1/38 , G01V1/3808 , G01V1/3817 , G01V1/3843 , G01V1/3861
摘要： The technologies described herein include systems and methods for performing a first seismic survey and performing a second seismic survey after a predetermined amount of time has lapsed between the first seismic survey and the second seismic survey. The shot times and the shot positions of the second seismic survey may be substantially the same as the shot times and the shot positions of the first seismic survey. After performing the seismic surveys, seismic data generated by the first seismic survey may be processed to generate a first image, and seismic data generated by the second seismic survey may be processed to generate a second image. After generating the first and second images, a difference between the first image and the second image may be computed to generate a time lapse difference image.
摘要翻译： 本文描述的技术包括用于执行第一次地震测量并在第一次地震测量和第二次地震勘测之后经过预定时间的时间之后执行第二次地震勘测的系统和方法。 第二次地震测量的拍摄时间和拍摄位置可以与第一次地震勘测的拍摄时间和拍摄位置基本相同。 在执行地震勘测之后，可以处理由第一地震勘测产生的地震数据以产生第一图像，并且可以处理由第二地震勘测产生的地震数据以产生第二图像。 在产生第一和第二图像之后，可以计算第一图像和第二图像之间的差异以产生时间差分图像。
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