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11. 发明公开

EP2762926A2 Systems and methods for detecting swell noise in a seismic gather 有权
标题翻译：在地震采集检测膨胀噪声的系统和方法
公开(公告)号：EP2762926A2
公开(公告)日：2014-08-06
申请号：EP14153483.4
申请日：2014-01-31
申请人： PGS Geophysical AS
发明人： Bekara, Maiza
IPC分类号： G01V1/36
CPC分类号： G01V1/38 , G01V1/362 , G01V1/364 , G01V2210/21 , G01V2210/3242 , G01V2210/45
摘要： Systems and methods for detecting swell noise in geophysical data are disclosed. In particular, the systems and methods receive seismic data as input and iteratively generate a signal mask from the seismic data. The seismic data can be generated by hydrophones or geophones. The signal mask can be used to identify traces in the seismic data that are contaminated with swell noise and identify frequencies of the contaminated traces that are contaminated with swell noise.
摘要翻译：在地球物理数据检测膨胀噪声的系统和方法游离缺失盘。特别地，该系统和方法接收地震数据作为输入，并迭代地生成从地震数据的信号掩码。地震数据可以由水听器或地震检波器来生成。信号掩码可被用于识别踪迹的地震数据被污染的那样膨胀噪声和识别污染痕迹的频率没有被污染的膨胀噪声。

12. 发明公开

EP0560558A2 Method of cancelling noise in a fluid-filled seismic streamer 失效
标题翻译： Verfahren zumGeräuschunterdrückung在einemflüssigkeitgefülltemeeresseismischen Kabel。
公开(公告)号：EP0560558A2
公开(公告)日：1993-09-15
申请号：EP93301741.0
申请日：1993-03-08
申请人： GECO A.S.
发明人： Bjelland, Cato , Langeland, Jan-Age
IPC分类号： G01V1/38 , G01V1/36 , G01V1/20
CPC分类号： G01V1/201 , G01V1/36 , G01V2210/32 , G01V2210/3242
摘要： During towing through the water, seismic streamers can be exposed to vibrations which lead to the formation of peristaltic wave modes in the streamer skin (3) and the streamer fluid filling (6). These peristaltic wave modes in the fluid filling can cause pressure fluctuations which are detected in the form of noise overlying the recorded signal from a hydrophone (2). A transfer function is derived for the transfer of the vibration effects to a noise signal in the hydrophone (2). The transfer function is used for processing of the recorded signal from the hydrophone or hydrophone group in a section (1) of the seismic streamer in order to cancel the noise which overlies the recorded signal. The effect of noise due to peristaltic waves (7) in the streamer skin (3) and the streamer's fluid filling (6) is thus removed from the hydrophone signal.
摘要翻译：在通过水拖动时，地震拖缆可能会受到振动的影响，导致流光体皮肤（3）和拖缆液体填充物（6）中形成蠕动波模式。流体填充中的这些蠕动波模式可引起压力波动，其以覆盖来自水听器（2）的记录信号的噪声形式被检测。导出了传递函数，用于将振动效应转移到水听器（2）中的噪声信号。传递函数用于处理来自地震拖缆的部分（1）中的水听器或水听器组的记录信号，以便消除覆盖记录信号的噪声。因此，在水上皮肤（3）和飘带的流体填充物（6）中由于蠕动波（7）引起的噪声的影响从水听器信号中去除。

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