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1. 发明申请

US20050073909A1 Determination of the height of the surface of a fluid column 审中-公开
标题翻译：确定流体柱表面的高度
公开(公告)号：US20050073909A1
公开(公告)日：2005-04-07
申请号：US10492874
申请日：2002-09-18
申请人： Robert Laws , Johan Robertsson , Julian Kragh , Leendert Combee
发明人： Robert Laws , Johan Robertsson , Julian Kragh , Leendert Combee
IPC分类号： G01V1/00 , G01V1/20 , G01V1/36 , G01V1/38
CPC分类号： G01V1/36 , G01V1/201 , G01V1/38 , G01V2210/56
摘要： The invention concerns a method for reducing the effect of a rough sea ghost reflection in marine seismic data. According to the invention, the method comprises the steps of: providing one or a plurality of pressure sensors sensitive to frequencies below about 1 Hz;—using said sensor(s) to receive and acquire pressure data in a frequency band comprised between about 0.03 and about 1 Hz;—recording said data; and—processing said data to provide information about the sea-height above the or each sensor. The or each sensor may be a seismic sensor that can acquire seismic data substantially simultaneously with the acquisition of the pressure data in a frequency band between about 0.03 and about 1 Hz.
摘要翻译：本发明涉及一种减少海洋地震资料中海象反射的影响的方法。根据本发明，该方法包括以下步骤：提供对低于约1Hz的频率敏感的一个或多个压力传感器; - 使用所述传感器接收和获取包含在约0.03和约1 Hz; - 记录所述数据; 并处理所述数据以提供关于在每个传感器上方的海高的信息。该或每个传感器可以是地震传感器，其可以在约0.03和约1Hz之间的频带中获取压力数据的同时获取地震数据。

2. 发明申请

US20060074562A1 Processing seismic data 失效
标题翻译：处理地震数据
公开(公告)号：US20060074562A1
公开(公告)日：2006-04-06
申请号：US10514858
申请日：2003-05-27
申请人： Lasse Amundsen , Tage Rosten , Johan Robertsson , Julian Kragh
发明人： Lasse Amundsen , Tage Rosten , Johan Robertsson , Julian Kragh
IPC分类号： G06F19/00
CPC分类号： G01V1/38 , G01V1/364 , G01V2210/56
摘要： A method of determining a vertical component of particle velocity from seismic data acquired using at least one receiver disposed within a water column comprises determining the vertical component of particle velocity from the pressure at a first location and a second location. The first location is the location of a first receiver, and is vertically beneath the second location. The method uses an operator accurate for seismic data acquired at a vertical separation between the first and second locations of up to at least 0.4 times the minimum wavelength of seismic energy used to acquire the seismic data. The second location may be at or above the surface of the water column. Alternatively, the method be applied to a twin streamer seismic surveying arrangement in which the second location is below the surface of the water column and is the location of a second receiver.
摘要翻译：使用设置在水柱内的至少一个接收器获取的地震数据确定粒子速度的垂直分量的方法包括从第一位置和第二位置处的压力确定粒子速度的垂直分量。第一个位置是第一个接收器的位置，并且位于第二个位置之下。该方法使用对于在用于获取地震数据的地震能量的最小波长的至少0.4倍的第一和第二位置之间的垂直间隔处获取的地震数据精确的操作者。第二位置可以在水柱的表面上或上方。或者，该方法应用于双流道地震测量装置，其中第二位置在水柱表面下方，并且是第二接收器的位置。

3. 发明申请

US20060217890A1 Processing seismic data 有权
标题翻译：处理地震数据
公开(公告)号：US20060217890A1
公开(公告)日：2006-09-28
申请号：US11371808
申请日：2006-03-09
申请人： Kambiz Iranpour , James Martin , Julian Kragh , Ali Ozbek
发明人： Kambiz Iranpour , James Martin , Julian Kragh , Ali Ozbek
IPC分类号： G01V1/28
CPC分类号： G01V1/36 , G01V2210/32 , G01V2210/3248
摘要： A method of processing seismic data comprises transforming seismic data which contain coherent noise to a domain in which at least some of the coherent noise is transformed to incoherent noise. The seismic data are then filtered in the new domain, to remove or attenuate the incoherent noise. If desired, the filtered data may subsequently be transformed back to the domain in which the data were acquired. The filtering process may be carried out using a multichannel interference canceller. A seismic data trace to be filtered is input to the principal channel of the interference canceller, and one or more other seismic data traces are input to the interference canceller as reference traces. Use of seismic data traces as the reference trace(s) avoids the need to determine a noise reference trace.
摘要翻译：一种处理地震数据的方法包括将包含相干噪声的地震数据变换到其中至少一些相干噪声被变换成非相干噪声的区域。然后在新的域中对地震数据进行滤波，以去除或衰减非相干噪声。如果需要，经滤波的数据可随后被转换回获取数据的域。滤波处理可以使用多声道干扰消除器进行。要滤波的地震数据轨迹被输入到干扰消除器的主通道，并且一个或多个其它地震数据迹线作为参考轨迹输入到干扰消除器。使用地震数据轨迹作为参考轨迹避免了确定噪声参考轨迹的需要。

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