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1. 发明公开

EP2976661A4 REMOVING NOISE FROM A SEISMIC MEASURMENT 审中-公开
标题翻译： RAUSCHUNTERDRÜCKUNG在EINER SEISMISCHEN MESSUNG
公开(公告)号：EP2976661A4
公开(公告)日：2017-02-22
申请号：EP14770173
申请日：2014-03-18
申请人： WESTERNGECO LLC , WESTERNGECO SEISMIC HOLDINGS LTD
发明人： OZDEMIR AHMET KEMAL , KJELLESVIG BENT ANDREAS
IPC分类号： G01V1/36 , G01V1/38
CPC分类号： G01V1/364 , G01V1/38 , G01V2210/1423 , G01V2210/3242 , G01V2210/3246 , G01V2210/34

2. 发明公开

EP0560558A3 Method of cancelling noise in a fluid-filled seismic streamer 失效
标题翻译：在流体填充地震流体中消除噪声的方法
公开(公告)号：EP0560558A3
公开(公告)日：1994-06-08
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.

3. 发明公开

EP0275206A3 Flow noise reduction 失效
标题翻译：流量减少噪音
公开(公告)号：EP0275206A3
公开(公告)日：1989-11-23
申请号：EP88300319.6
申请日：1988-01-15
申请人： GEC-MARCONI LIMITED
发明人： Pedley, Mark , Fitzgerald, William John
IPC分类号： G01V1/36 , G01L19/00 , G01F1/58
CPC分类号： G01F1/58 , G01V1/36 , G01V2210/3242 , Y10S367/901
摘要： The level of signal noise caused by fluid flow at a pressure transducer, such as a hydrophone or geophone (1), is determined by measuring the electric field (Vx, Vy) induced when the fluid flows through a magnetic field. The electric field, which is proportional to flow rate, is measured by electrodes (4a - 4d) positioned about the transducer. The pressure due to the flow is derived from the flow rate voltage by a digital filter (8) which may be adaptive, to allow for varying flow conditions, or which may employ a predetermined electric field/flow noise relation. This flow noise is then subtracted from the received signal, the resultant signal then being substantially noise-free.

4. 发明公开

EP0275206A2 Flow noise reduction 失效
标题翻译： Strömungsgeräuscherniedrigung。
公开(公告)号：EP0275206A2
公开(公告)日：1988-07-20
申请号：EP88300319.6
申请日：1988-01-15
申请人： GEC-MARCONI LIMITED
发明人： Pedley, Mark , Fitzgerald, William John
IPC分类号： G01V1/36 , G01L19/00 , G01F1/58
CPC分类号： G01F1/58 , G01V1/36 , G01V2210/3242 , Y10S367/901
摘要： The level of signal noise caused by fluid flow at a pressure transducer, such as a hydrophone or geophone (1), is determined by measuring the electric field (Vx, Vy) induced when the fluid flows through a magnetic field. The electric field, which is proportional to flow rate, is measured by electrodes (4a - 4d) positioned about the transducer. The pressure due to the flow is derived from the flow rate voltage by a digital filter (8) which may be adaptive, to allow for varying flow conditions, or which may employ a predetermined electric field/flow noise relation. This flow noise is then subtracted from the received signal, the resultant signal then being substantially noise-free.
摘要翻译：通过测量当流体流过磁场时感应的电场（Vx，Vy）来确定由诸如水听器或地震检波器（1）的压力传感器处的流体流动引起的信号噪声的水平。与流速成比例的电场由位于换能器周围的电极（4a-4d）测量。由于流动导致的压力由数字滤波器（8）从流量电压导出，数字滤波器（8）可以是自适应的，以允许变化的流动条件，或者可以采用预定的电场/流动噪声关系。然后从接收到的信号中减去该流量噪声，结果信号基本上是无噪声的。

5. 发明公开

EP3049833A1 SEISMIC SENSOR WITH MOTION SENSORS FOR NOISE REDUCTION 有权
标题翻译：运动传感器进行降噪地震传感器
公开(公告)号：EP3049833A1
公开(公告)日：2016-08-03
申请号：EP14783746.2
申请日：2014-09-26
申请人： ION Geophysical Corporation
发明人： OLIVIER, Andre W. , GRECO, Matthew , BARRY, Ronald
IPC分类号： G01V1/38
CPC分类号： G01V1/38 , G01V1/201 , G01V2210/3242
摘要： A seismic sensor cable system is provided. The seismic sensor cable system may include a cable, a first sensor configured to measure motion of the cable, wherein measurement of motion by the first sensor substantially excludes particle motion associated with seismic waves, and a second sensor configured to measure particle motion associated with the seismic waves.

6. 发明公开

EP2976661A1 REMOVING NOISE FROM A SEISMIC MEASURMENT 审中-公开
标题翻译：降噪地震测量
公开(公告)号：EP2976661A1
公开(公告)日：2016-01-27
申请号：EP14770173.4
申请日：2014-03-18
申请人： Westerngeco LLC , WesternGeco Seismic Holdings Limited
发明人： OZDEMIR, Ahmet, Kemal , KJELLESVIG, Bent, Andreas
IPC分类号： G01V1/28 , G01H3/00 , G06F19/00
CPC分类号： G01V1/364 , G01V1/38 , G01V2210/1423 , G01V2210/3242 , G01V2210/3246 , G01V2210/34
摘要： A technique includes using a filter having filtering parameters based at least in part on a dispersion curve of at least one vibration mode of a streamer to filter a measurement acquired by at least one sensor of the streamer and using results of the filtering to suppress vibration noise present in the measurement.

7. 发明授权

EP0560558B1 Method of cancelling noise in a fluid-filled seismic streamer 失效
标题翻译：在一个充满液体的海洋地震电缆抑制噪声的方法
公开(公告)号：EP0560558B1
公开(公告)日：1996-12-18
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

8. 发明公开

EP0560559A3 Method of cancelling turbulence noise in a fluid-filled seismic streamer 失效
标题翻译：在流体填充地震流体中消除湍流噪声的方法
公开(公告)号：EP0560559A3
公开(公告)日：1994-06-08
申请号：EP93301742.8
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： G01V1/36 , G01V1/3808 , G01V2210/32 , G01V2210/3242
摘要： Turbulence (8) in a boundary layer on the outside of the streamer skin (3) in a seismic streamer results in the recorded signals from the hydrophones (2) in the seismic streamer being contaminated with noise. This is due to the fact that the turbulence noise is transmitted to the hydrophone's near field as an acoustic signal or via shear waves in the fluid filling (6). By deriving a transfer function for the transmission of the turbulence-generated noise and using of the transfer function on the recorded signal from the hydrophone (2), the turbulence-generated noise overlying a recorded signal can be cancelled.

9. 发明公开

EP0560559A2 Method of cancelling turbulence noise in a fluid-filled seismic streamer 失效
标题翻译： Verfahren zurTurbulentieresgeräuschunterdrückungin einemflüssigkeitgefülltemeeresseismischen Kabel。
公开(公告)号：EP0560559A2
公开(公告)日：1993-09-15
申请号：EP93301742.8
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： G01V1/36 , G01V1/3808 , G01V2210/32 , G01V2210/3242
摘要： Turbulence (8) in a boundary layer on the outside of the streamer skin (3) in a seismic streamer results in the recorded signals from the hydrophones (2) in the seismic streamer being contaminated with noise. This is due to the fact that the turbulence noise is transmitted to the hydrophone's near field as an acoustic signal or via shear waves in the fluid filling (6). By deriving a transfer function for the transmission of the turbulence-generated noise and using of the transfer function on the recorded signal from the hydrophone (2), the turbulence-generated noise overlying a recorded signal can be cancelled.
摘要翻译：在地震拖缆中的流光皮肤（3）的外侧的边界层中的湍流（8）导致来自地震拖缆中的水听器（2）的记录信号被噪声污染。这是由于湍流噪声作为声信号或通过流体填充物（6）中的剪切波传输到水听器的近场。通过导出用于传输湍流产生的噪声的传递函数和对来自水听器（2）的记录信号的传递函数，可以消除覆盖记录信号的湍流产生的噪声。

10. 发明公开

EP2762926A3 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：EP2762926A3
公开(公告)日：2015-12-16
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 , G01V1/38
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.

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