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1.
公开(公告)号:US20170168174A1
公开(公告)日:2017-06-15
申请号:US15302008
申请日:2015-03-27
申请人: CGG SERVICES SA
发明人: Robert DOWLE , John SALLAS
摘要: A low-frequency source element is configured to generate seismic waves in water. The low-frequency source element includes includes a hydraulic reservoir configured to hold a given fluid volume; a compliant chamber configured to hold a given gas volume and to accommodate volume changes of the given fluid volume; a rotational kinetic energy actuator configured to impart rotational kinetic energy to the fluid volume; and a flow modulator device configured to transform part of the rotational kinetic energy of the fluid volume into translational energy to generate an acoustic signal.
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公开(公告)号:US20160084978A1
公开(公告)日:2016-03-24
申请号:US14889194
申请日:2014-06-13
申请人: CGG SERVICES SA
IPC分类号: G01V1/38
CPC分类号: G01V1/3861 , G01V1/006 , G01V1/3808
摘要: Method, source array and seismic vibro-acoustic source element for seismic data acquisition. The method includes storing in a controller a library of beam form factor sets associated with a source array and corresponding regions to be surveyed; towing the source array along survey lines over the regions to be surveyed; selecting a beam form factor set from the library to be applied to the source array for each region; and actuating the source array based on the selected set of beam form factors and a position of the source array relative to the regions. Each set of beam form factors maps to a corresponding region of an area to be surveyed.
摘要翻译: 用于地震数据采集的方法,源阵列和地震振动声源元件。 该方法包括在控制器中存储与源阵列相关联的波束形状因子集和相应的待测区域的库; 沿着要调查的地区的测绘线拖曳源阵列; 从库中选择要应用于每个区域的源阵列的波束形状因子集; 以及基于所选择的波束形状因子集合以及所述源阵列相对于所述区域的位置来致动所述源阵列。 每组波束形状因子映射到要测量的区域的相应区域。
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公开(公告)号:US20140369162A1
公开(公告)日:2014-12-18
申请号:US14168207
申请日:2014-01-30
申请人: CGG SERVICES SA
CPC分类号: G01V1/3808 , G01V1/006 , G01V1/3861 , G01V2210/1214 , G01V2210/127
摘要: There is a method for finding a best distribution of source elements that form a vibratory source array. The method includes inputting plural constraints for the source elements; generating plural distributions of the source elements that fulfill the plural constraints; calculating for each distribution a performance index characterizing the source array; and selecting the best distribution from the plural distributions based on a value of the performance index.
摘要翻译: 找到形成振动源阵列的源元素的最佳分布的方法。 该方法包括为源元素输入多个约束; 生成满足多个约束的源元素的多个分布; 为每个分布计算表征源阵列的性能指标; 并且基于性能指标的值从多个分布中选择最佳分布。
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4.
公开(公告)号:US20140169132A1
公开(公告)日:2014-06-19
申请号:US14082503
申请日:2013-11-18
申请人: CGG SERVICES SA
发明人: John SALLAS , Olivier WINTER
IPC分类号: G01V1/00
CPC分类号: G01V1/005
摘要: Controller and method for generating a frequency sweep for a seismic survey that uses a seismic source. The method includes receiving specification data about the seismic source; receiving environmental data about an infrastructure affected by the seismic survey; receiving guideline data about the infrastructure; setting a target energy spectrum density to be emitted by the seismic source during the seismic survey; and calculating, in a processor, the frequency sweep based on the specification data, environmental data, guideline data and the target energy spectrum density.
摘要翻译: 用于生成使用地震源的地震勘测的频率扫描的控制器和方法。 该方法包括接收有关震源的规格数据; 接收受地震勘测影响的基础设施的环境数据; 接收有关基础设施的指导性数据; 在地震勘测期间设定地震源发射的目标能谱密度; 并且在处理器中基于指定数据,环境数据,准则数据和目标能谱密度来计算频率扫描。
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公开(公告)号:US20160131777A1
公开(公告)日:2016-05-12
申请号:US14982073
申请日:2015-12-29
申请人: CGG SERVICES SA
IPC分类号: G01V1/135
CPC分类号: G01V1/135 , G01V2210/1214 , G01V2210/1293
摘要: A source element for generating seismic waves includes a housing; a partitioning element placed inside the housing and configured to split the housing in a closed chamber and an opened chamber; and a valve in fluid communication with the closed chamber and configured to supply high-pressure air to the closed chamber to make the partitioning element oscillates. An oscillation of the partitioning element generates low-frequency seismic waves.
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6.
公开(公告)号:US20160131776A1
公开(公告)日:2016-05-12
申请号:US14894560
申请日:2014-06-25
申请人: CGG SERVICES SA
发明人: Kaelig CASTOR , Thomas BIANCHI , John SALLAS
IPC分类号: G01V1/00
CPC分类号: G01V1/005 , G01V2210/1214 , G01V2210/127
摘要: Computing device, computer software and methods for generating sweep signals corresponding to plural sources that generate seismic waves. The method includes selecting (502) a nominal sweep signal (S0); applying (512) a perturbation (P) to the nominal sweep signal (S0); and calculating (518) the sweep signals (Sn) by varying the perturbation (P), each sweep signal corresponding to a seismic source.
摘要翻译: 用于产生对应于产生地震波的多个源的扫描信号的计算设备,计算机软件和方法。 该方法包括选择(502)标称扫描信号(S0); 将(512)扰动(P)应用于标称扫描信号(S0); 以及通过改变扰动(P)来计算(518)扫描信号(Sn),每个扫描信号对应于地震源。
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公开(公告)号:US20140254318A1
公开(公告)日:2014-09-11
申请号:US14170725
申请日:2014-02-03
申请人: CGG SERVICES SA
发明人: Peter MAXWELL , John SALLAS
IPC分类号: G01V1/16
摘要: According to an embodiment, a seismic receiver device is described for use in a borehole surrounded by an ambient material, e.g., rock, mud, etc. The seismic receiver device includes a pressure wave measuring device which is configured to sense pressure changes associated with received seismic waves, a coating layer disposed on the pressure wave measuring device, and an outer layer disposed on the coating layer which is made of a material that is selected to have a bulk modulus number that is substantially similar to a bulk modulus number of the ambient medium. In this way, the acoustic impedance of the device is better matched to the ambient material so that more accurate seismic acquisition may be performed.
摘要翻译: 根据一个实施例,一种地震接收装置被描述为用于由环境材料(例如岩石,泥浆等)包围的钻孔中。地震接收装置包括压力波测量装置,其被配置成感测与所接收的相关联的压力变化 地震波,设置在压力波测量装置上的涂层和设置在涂层上的外层,其由选择为具有基本上类似于环境的体积弹性模数的体积模数的材料制成 中。 以这种方式,装置的声阻抗与环境材料更好地匹配,从而可以执行更准确的地震采集。
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公开(公告)号:US20140241123A1
公开(公告)日:2014-08-28
申请号:US14163227
申请日:2014-01-24
申请人: CGG SERVICES SA
发明人: John SALLAS , Benoit TEYSSANDIER , Robert DOWLE
IPC分类号: G01V1/38
CPC分类号: G01V1/3817 , G01S7/52004 , G01S7/521 , G01S15/003 , G01S15/89 , G01V1/3835
摘要: A source array generates seismic waves in water during a marine seismic survey. The source array includes a first sub-array including plural source elements; plural acoustic transceivers distributed along the first sub-array; a positioning system; a primary position control device configured to control a position of the first sub-array; and a secondary position control system configured to adjust a depth of the first sub-array.
摘要翻译: 源阵列在海洋地震勘测期间产生水中的地震波。 源阵列包括包括多个源元素的第一子阵列; 沿着第一子阵列分布的多个声收发器; 定位系统; 主位置控制装置,被配置为控制所述第一子阵列的位置; 以及辅助位置控制系统,被配置为调整第一子阵列的深度。
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公开(公告)号:US20150000997A1
公开(公告)日:2015-01-01
申请号:US14177537
申请日:2014-02-11
申请人: CGG SERVICES SA
IPC分类号: G01V1/137
CPC分类号: G01V1/135 , G01V2210/1214 , G01V2210/1293
摘要: A source element for generating seismic waves includes a housing; a partitioning element placed inside the housing and configured to split the housing in a closed chamber and an opened chamber; and a valve in fluid communication with the closed chamber and configured to supply high-pressure air to the closed chamber to make the partitioning element oscillates. An oscillation of the partitioning element generates low-frequency seismic waves.
摘要翻译: 用于产生地震波的源元件包括壳体; 分隔元件,放置在所述壳体内并且构造成将所述壳体分离在封闭的腔室和打开的腔室中; 以及阀,其与所述封闭室流体连通并且被配置为向所述封闭室供应高压空气以使所述分隔元件振荡。 分隔元件的振荡产生低频地震波。
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公开(公告)号:US20140241116A1
公开(公告)日:2014-08-28
申请号:US14166205
申请日:2014-01-28
申请人: CGG SERVICES SA
发明人: John SALLAS , Benoit TEYSSANDIER
IPC分类号: G01V1/00
CPC分类号: G01V1/003 , G01V1/006 , G01V1/3843
摘要: Method and controller for finding a best distribution of source elements that form a vibratory source array. The method includes inputting plural constraints for the source elements; generating plural distributions of the source elements that fulfill the plural constraints; calculating for each distribution a first attribute characterizing the source array; and selecting the best distribution from the plural distributions based on a value of the first attribute.
摘要翻译: 用于找到形成振动源阵列的源元素的最佳分布的方法和控制器。 该方法包括为源元素输入多个约束; 生成满足多个约束的源元素的多个分布; 为每个分布计算表征源数组的第一属性; 以及基于所述第一属性的值从所述多个分布中选择最佳分布。
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