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。

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。

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。

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。

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。

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。

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。

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。

公开(公告)号：US20070230268A1

公开(公告)日：2007-10-04

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。

公开(公告)号：US08982663B2

公开(公告)日：2015-03-17

申请号：US13269991

申请日：2011-10-10

申请人： Peter Aaron ,  Stian Hegna ,  Gregory Parkes

发明人： Peter Aaron ,  Stian Hegna ,  Gregory Parkes

IPC分类号： G01V1/38 ,  G01V1/28

CPC分类号： G01V1/3861 ,  G01V1/3808 ,  G01V2210/20

摘要： A disclosed subsurface imaging method begins by obtaining initial signals from a geophysical survey that has been acquired with multiple geophysical energy sources actuated in a plurality of firing sequences, each sequence having a known time delay between the firing times of each source. The initial signals are grouped into gathers of signals acquired from multiple firing sequences. For each gather, initial estimates of the first and second source wave fields are determined. Quieted signals for the first source are then generated to represent the initial signals minus a current estimate of the second source wave field. A coherent energy separation operation is applied to the quieted signals to obtain a refined estimate for the first source wave field.

摘要翻译： 公开的地下成像方法开始于通过在多个点火序列中激活的多个地球物理能量源获得的地球物理勘测获得初始信号，每个序列在每个源的燃烧时间之间具有已知的时间延迟。 初始信号被分组为从多个点火序列获得的信号的聚集。 对于每个聚集，确定第一和第二源波场的初始估计。 然后产生用于第一源的安静信号以表示初始信号减去第二源波场的当前估计。 对静音信号应用相干能量分离操作，以获得第一源波场的精确估计。