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1. 发明申请

US20130325427A1 METHODS AND SYSTEMS FOR COMPUTING NOTIONAL SOURCE SIGNATURES FROM NEAR-FIELD MEASUREMENTS AND MODELED NOTIONAL SIGNATURES 审中-公开
标题翻译：用于计算来自近场测量和建模声明信号的有声源信号的方法和系统
公开(公告)号：US20130325427A1
公开(公告)日：2013-12-05
申请号：US13483327
申请日：2012-05-30
申请人： Stian Hegna , Fabien Julliard
发明人： Stian Hegna , Fabien Julliard
IPC分类号： G06G7/57
CPC分类号： G01V1/13 , G01V1/006 , G01V2210/50
摘要： Methods and systems for computing notional source signatures from modeled notional signatures and measured near-field signatures are described. Modeled near-field signatures are calculated from the modeled notional signatures. Low weights are assigned to parts of a source pressure wavefield spectrum where signatures are less reliable and higher weights are assigned to parts of the source pressure wavefield spectrum where signatures are more reliable. The part of the spectrum where both sets of signatures are reliable can be used for quality control and for comparing the measured near-field signatures to modeled near-field signatures. When there are uncertainties in the input parameters to the modeling, the input parameters can be scaled to minimize the differences between measured and modeled near-field signatures. Resultant near-field signatures are computed by a weighted summation of the modeled and measured near-field signatures, and notional source signatures are calculated from the resultant near-field signatures.
摘要翻译：描述了从建模的名义签名和测量的近场签名计算名义源签名的方法和系统。建模的近场签名是从建模的名义签名计算的。低权重被分配给源压力波场谱的部分，其中签名不太可靠，并且较高的权重被分配给源压力波场谱的部分，其中签名更可靠。两组签名可靠的频谱部分可用于质量控制和将测量的近场签名与建模的近场签名进行比较。当建模的输入参数有不确定性时，可以缩放输入参数以最小化测量和建模的近场签名之间的差异。通过建模和测量的近场签名的加权求和计算得到的近场签名，并从所得到的近场签名计算名义源签名。

2. 发明授权

US10241218B2 Methods and systems for computing notional source signatures from near-field measurements and modeled notional signatures 有权
公开(公告)号：US10241218B2
公开(公告)日：2019-03-26
申请号：US13483327
申请日：2012-05-30
申请人： Stian Hegna , Fabien Julliard
发明人： Stian Hegna , Fabien Julliard
IPC分类号： G06F17/50 , G01V1/13 , G01V1/00
摘要： Methods and systems for computing notional source signatures from modeled notional signatures and measured near-field signatures are described. Modeled near-field signatures are calculated from the modeled notional signatures. Low weights are assigned to parts of a source pressure wavefield spectrum where signatures are less reliable and higher weights are assigned to parts of the source pressure wavefield spectrum where signatures are more reliable. The part of the spectrum where both sets of signatures are reliable can be used for quality control and for comparing the measured near-field signatures to modeled near-field signatures. When there are uncertainties in the input parameters to the modeling, the input parameters can be scaled to minimize the differences between measured and modeled near-field signatures. Resultant near-field signatures are computed by a weighted summation of the modeled and measured near-field signatures, and notional source signatures are calculated from the resultant near-field signatures.

3. 发明授权

US10838095B2 Wavefield deghosting of seismic data recorded using multiple seismic sources at different water depths 有权
公开(公告)号：US10838095B2
公开(公告)日：2020-11-17
申请号：US12806098
申请日：2010-08-05
申请人： Stian Hegna , Gregory Ernest Parkes
发明人： Stian Hegna , Gregory Ernest Parkes
IPC分类号： G01V1/06 , G01V1/36 , G01V1/38 , G01V1/00
CPC分类号： G01V1/364 , G01V1/3808 , G01V1/005 , G01V2210/21 , G01V2210/56
摘要： Seismic data are acquired by actuating a first source at a first time and one or more additional seismic sources each with their own characteristic times with respect to a time of signal recording, the sources substantially collocated and at different depths. A first wavefield is determined that would occur if the first source were actuated at a selected time with respect to an initiation time of the recordings and being time adjusted for the water depth. One or more additional wavefields are determined that would occur if the one or more additional sources were each actuated at said selected time with respect to said initiation time, and being time adjusted for water depths of the one or more additional sources. The first wavefield and the one or more additional wavefields are combined to determine a deghosted source wavefield corresponding to actuation of a single seismic energy source.

4. 发明授权

US07881159B2 Seismic streamers which attentuate longitudinally traveling waves 有权
标题翻译：注意纵向行波的地震拖缆
公开(公告)号：US07881159B2
公开(公告)日：2011-02-01
申请号：US11640657
申请日：2006-12-18
申请人： Stian Hegna , Øyvind Hillesund
发明人： Stian Hegna , Øyvind Hillesund
IPC分类号： G01V1/20 , G01V1/38
CPC分类号： G01V1/201
摘要： A seismic streamer includes at least one array of sensors each disposed in a sensor holder at longitudinally spaced apart locations. A longitudinal orientation of at least one sensor or at least one sensor holder is different from that of the other sensors along the length of the array.
摘要翻译：地震拖缆包括至少一个传感器阵列，每个传感器阵列设置在纵向间隔开的位置处的传感器保持器中。至少一个传感器或至少一个传感器保持器的纵向方向与沿着阵列长度的其它传感器的纵向取向不同。

5. 发明授权

US07539079B2 System and method for determining positions of towed marine source-array elements 有权
标题翻译：用于确定拖曳的海洋源阵列元件的位置的系统和方法
公开(公告)号：US07539079B2
公开(公告)日：2009-05-26
申请号：US11392420
申请日：2006-03-29
申请人： Jeroen Hoogeveen , Stian Hegna
发明人： Jeroen Hoogeveen , Stian Hegna
IPC分类号： G01V1/38
CPC分类号： G01S5/22 , G01S13/46 , G01S2013/466 , G01V1/3861
摘要： A system comprises a plurality of seismic transmitters, at least one seismic source array, and a processor. Each seismic source array comprises a plurality of seismic source-array elements, mounted within the seismic source array; and a plurality of near-field sensors, wherein each near-field sensor is mounted within the seismic source array in the vicinity of one of the seismic source-array elements. The processor is adapted to determine relative positions of the seismic source-array elements on the seismic source array from the seismic signals transmitted by the seismic transmitters and received at the near-field sensors on the seismic source array.
摘要翻译：系统包括多个地震发射机，至少一个地震源阵列和处理器。每个地震源阵列包括安装在地震源阵列内的多个地震源阵列元件; 以及多个近场传感器，其中每个近场传感器安装在地震源阵列之一附近的地震源阵列元件之一附近。该处理器适用于从地震发射器发射并在地震源阵列上的近场传感器处接收的地震信号确定地震源阵列上的地震源阵列元件的相对位置。

6. 发明授权

US09007870B2 Seismic surveying techniques with illumination areas identifiable from primary and higher-order reflections 有权
标题翻译：地震测量技术具有可从初级和高阶反射识别的照明区域
公开(公告)号：US09007870B2
公开(公告)日：2015-04-14
申请号：US13485552
申请日：2012-05-31
申请人： Martin Widmaier , Walter Sollner , Stian Hegna , Steve Bishop
发明人： Martin Widmaier , Walter Sollner , Stian Hegna , Steve Bishop
IPC分类号： G01V1/38
CPC分类号： G01V1/3808 , G01V1/282 , G01V2210/67
摘要： Techniques are disclosed relating to determining or executing a survey pattern for a marine seismic survey vessel. The survey pattern may be determined based on a determined subsurface illumination area. The subsurface illumination area may be identifiable from primary reflections and higher-order reflections detected by sensors disposed in a sensor streamer configuration that may be towed behind the survey vessel. The sensor streamer configuration may include a plurality of streamers.
摘要翻译：公开了关于确定或执行海洋地震勘测船的勘测模式的技术。勘测模式可以基于确定的地下照明区域来确定。地下照明区域可以从初级反射和由设置在传感器拖缆结构中的传感器检测到的高阶反射可以被识别，所述传感器拖缆配置可被拖到测量船后面。传感器流光器配置可以包括多个拖缆。

7. 发明授权

US08792297B2 Methods for gathering marine geophysical data 有权
标题翻译：收集海洋地球物理数据的方法
公开(公告)号：US08792297B2
公开(公告)日：2014-07-29
申请号：US12803730
申请日：2010-07-02
申请人： Øyvind Hillesund , Stian Hegna
发明人： Øyvind Hillesund , Stian Hegna
IPC分类号： G01V1/38
CPC分类号： G01V1/3826 , G01V1/3808
摘要： In a first embodiment the invention comprises a method for gathering geophysical data, including towing geophysical data gathering equipment behind a survey vessel in a body of water, said equipment including an array of sensor streamers extending behind said vessel, and determining a geodetic location of a streamer steering reference point at a forward end of the sensor streamers and a reference direction. At least one sensor streamer included in said array of sensor streamers is laterally deflected in response to the determined geodetic location of said streamer steering reference point and the determined reference direction.
摘要翻译：在第一实施例中，本发明包括一种用于收集地球物理数据的方法，包括在水体中拖动测量船后面的地球物理数据采集设备，所述设备包括延伸在所述船舶后面的传感器拖缆阵列，以及确定一个大地测量位置传感器拖缆前端的拖缆转向参考点和参考方向。响应于所确定的所述拖缆转向参考点的大地测量位置和确定的参考方向，包括在所述传感器拖缆阵列中的至少一个传感器拖缆被横向偏转。

8. 发明申请

US20130322205A1 Seismic Surveying Techniques with Illumination Areas Identifiable from Primary and Higher-Order Reflections 有权
标题翻译：地震测量技术与照明区域可从初级和高阶反射识别
公开(公告)号：US20130322205A1
公开(公告)日：2013-12-05
申请号：US13485552
申请日：2012-05-31
申请人： Martin Widmaier , Walter Sollner , Stian Hegna , Steve Bishop
发明人： Martin Widmaier , Walter Sollner , Stian Hegna , Steve Bishop
IPC分类号： G01V1/38
CPC分类号： G01V1/3808 , G01V1/282 , G01V2210/67
摘要： Techniques are disclosed relating to determining or executing a survey pattern for a marine seismic survey vessel. The survey pattern may be determined based on a determined subsurface illumination area. The subsurface illumination area may be identifiable from primary reflections and higher-order reflections detected by sensors disposed in a sensor streamer configuration that may be towed behind the survey vessel. The sensor streamer configuration may include a plurality of streamers.
摘要翻译：公开了关于确定或执行海洋地震勘测船的勘测模式的技术。勘测模式可以基于确定的地下照明区域来确定。地下照明区域可以从初级反射和由设置在传感器拖缆结构中的传感器检测到的高阶反射可以被识别，所述传感器拖缆配置可被拖到测量船后面。传感器流光器配置可以包括多个拖缆。

9. 发明授权

US07733740B2 Sensor mount for marine seismic streamer 有权
标题翻译：用于海洋地震拖缆的传感器座
公开(公告)号：US07733740B2
公开(公告)日：2010-06-08
申请号：US11731372
申请日：2007-03-30
申请人： Oyvind Hillesund , Stian Hegna
发明人： Oyvind Hillesund , Stian Hegna
IPC分类号： G01V1/38
CPC分类号： G01V1/201
摘要： A seismic streamer includes a jacket covering an exterior of the streamer. At least one strength member extends along the length of and disposed inside the jacket. At least one seismic sensor is mounted in a housing affixed to the at least one strength member. A void filling material fills the interstices inside the jacket. The housing is configured to isolate the at least one sensor from pressure variations in the void filling material, and the housing is configured to couple the at least one sensor to a body of water outside the streamer.
摘要翻译：地震拖缆包括覆盖拖缆外部的护套。至少一个强度构件沿着护套的长度延伸并设置在护套内。至少一个地震传感器被安装在固定到所述至少一个强度构件的壳体中。空隙填充材料填充护套内的空隙。壳体被构造成将至少一个传感器与空隙填充材料中的压力变化隔离，并且壳体构造成将至少一个传感器耦合到拖缆外部的水体。

10. 发明申请

US20090147621A1 Method of attenuating noise in marine seismic streamers utilizing varied sensor spacing and position-dependent band-pass filters 有权
标题翻译：使用不同传感器间距和位置相关带通滤波器来减弱海洋地震拖缆噪声的方法
公开(公告)号：US20090147621A1
公开(公告)日：2009-06-11
申请号：US11999396
申请日：2007-12-05
申请人： Stian Hegna
发明人： Stian Hegna
IPC分类号： G01V1/38 , G01V1/28
CPC分类号： G01V1/3808 , G01V1/364 , G01V2210/21 , G01V2210/324
摘要： The invention comprises a system for attenuating noise in seismic signals detected in a marine seismic streamer. In a particular implementation the system may comprise seismic detectors positioned in the streamer and interconnected to form a plurality of wavenumber filters, with each of the wavenumber filters attenuating signals within a range of wavenumbers. The output signals from the wavenumber filters are operatively connected to a plurality of band-pass filters, and the output signals of the band-pass filters are combined by summation means. The range of wavenumbers attenuated by the wavenumber filters and the passbands of the band-pass filters are selected so that in the output signal of the summation means, signals within a selected frequency range of interest propagating along the cable within a selected velocity range are attenuated and signals within the selected frequency range of interest having a velocity range outside the selected velocity range are preserved.
摘要翻译：本发明包括一种用于衰减在海洋地震拖缆中检测到的地震信号中的噪声的系统。在特定实施方式中，系统可以包括位于拖缆中的地震检测器并互连以形成多个波数滤波器，其中每个波数滤波器衰减波数范围内的信号。来自波数滤波器的输出信号可操作地连接到多个带通滤波器，并且带通滤波器的输出信号由求和装置组合。由波数滤波器衰减的波数范围和带通滤波器的通带被选择，使得在求和装置的输出信号中，在所选择的速度范围内沿着电缆传播的所选频率范围内的信号被衰减并且保持在所选择的速度范围之外的所选频率范围内的信号。

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