System for combining signals of pressure sensors and particle motion sensors in marine seismic streamers
    1.
    发明授权
    System for combining signals of pressure sensors and particle motion sensors in marine seismic streamers 有权
    用于组合海洋地震拖缆中压力传感器和颗粒运动传感器信号的系统

    公开(公告)号:US07684281B2

    公开(公告)日:2010-03-23

    申请号:US12082804

    申请日:2008-04-14

    CPC classification number: G01V1/3808

    Abstract: Signals of pressure sensors and particle motion sensors located in marine seismic streamers are combined to generate a seismic wavefield. At least a part of the particle motion sensor signal is calculated from a recorded pressure signal and the calculated at least a part of the particle motion sensor signal is used to generate a particle motion sensor signal in which noise is substantially attenuated in at least a lower frequency range thereof. The pressure sensor data and the noise attenuated particle motion sensor signal can then be combined to calculate up- and down-going wavefields.

    Abstract translation: 位于海洋地震拖缆中的压力传感器和颗粒运动传感器的信号被组合以产生地震波场。 粒子运动传感器信号的至少一部分从记录的压力信号计算,并且所计算的粒子运动传感器信号的至少一部分用于产生其中噪声基本上衰减至少较低的粒子运动传感器信号 频率范围。 压力传感器数据和噪声衰减粒子运动传感器信号可以组合起来计算上下波场。

    System for combining signals of pressure sensors and particle motion sensors in marine seismic streamers
    2.
    发明授权
    System for combining signals of pressure sensors and particle motion sensors in marine seismic streamers 有权
    用于组合海洋地震拖缆中压力传感器和颗粒运动传感器信号的系统

    公开(公告)号:US07359283B2

    公开(公告)日:2008-04-15

    申请号:US10792510

    申请日:2004-03-03

    CPC classification number: G01V1/3808

    Abstract: Signals of pressure sensors and particle motion sensors located in marine seismic streamers are combined to generate pressure sensor data and particle motion data with substantially the same broad bandwidth. The noisy low frequency part of the motion signals are calculated from the recorded pressure signals and merged with the non-noisy motion signals. The two broad bandwidth data sets can then be combined to calculate the full up- and down-going wavefields.

    Abstract translation: 位于海洋地震拖缆中的压力传感器和颗粒运动传感器的信号被组合以产生具有基本上相同的宽带宽的压力传感器数据和粒子运动数据。 运动信号的噪声低频部分由记录的压力信号计算,并与非噪声运动信号合并。 然后可以组合两个宽带宽数据集,以计算完整的上下波场。

    Method for monitoring performance of marine seismic air gun arrays
    3.
    发明授权
    Method for monitoring performance of marine seismic air gun arrays 有权
    监测海上地震气枪阵列性能的方法

    公开(公告)号:US07466630B2

    公开(公告)日:2008-12-16

    申请号:US11433739

    申请日:2006-05-12

    CPC classification number: G01V1/137 G01V1/3808 G01V2200/14

    Abstract: A method for characterizing function of an air gun includes measuring, with respect to time, a parameter related to pressure in a charge chamber portion of the air gun. The measurements with respect to time are used to characterize the function of the air gun.

    Abstract translation: 用于表征气枪的功能的方法包括相对于时间测量与气枪的充气室部分中的压力相关的参数。 相对于时间的测量用于表征气枪的功能。

    System for combining signals of pressure sensors and particle motion sensors in marine seismic streamers
    4.
    发明申请
    System for combining signals of pressure sensors and particle motion sensors in marine seismic streamers 有权
    用于组合海洋地震拖缆中压力传感器和颗粒运动传感器信号的系统

    公开(公告)号:US20080192571A1

    公开(公告)日:2008-08-14

    申请号:US12082804

    申请日:2008-04-14

    CPC classification number: G01V1/3808

    Abstract: Signals of pressure sensors and particle motion sensors located in marine seismic streamers are combined to generate a seismic wavefield. At least a part of the particle motion sensor signal is calculated from a recorded pressure signal and the calculated at least a part of the particle motion sensor signal is used to generate a particle motion sensor signal in which noise is substantially attenuated in at least a lower frequency range thereof. The pressure sensor data and the noise attenuated particle motion sensor signal can then be combined to calculate up- and down-going wavefields.

    Abstract translation: 位于海洋地震拖缆中的压力传感器和颗粒运动传感器的信号被组合以产生地震波场。 粒子运动传感器信号的至少一部分从记录的压力信号计算,并且所计算的粒子运动传感器信号的至少一部分用于产生其中噪声基本上衰减至少较低的粒子运动传感器信号 频率范围。 压力传感器数据和噪声衰减粒子运动传感器信号可以组合起来计算上下波场。

    Method for separating seismic signals from two or more distinct sources
    5.
    发明授权
    Method for separating seismic signals from two or more distinct sources 有权
    从两个或更多不同来源分离地震信号的方法

    公开(公告)号:US06882938B2

    公开(公告)日:2005-04-19

    申请号:US10630385

    申请日:2003-07-30

    CPC classification number: G01V1/364 G01V2210/20

    Abstract: A method is disclosed for separating energy resulting from actuating at least two different seismic energy sources from seismic signals. The sources are actuated to provide a variable time delay between successive actuations of a first one and a second one of the sources. The method includes sorting the seismic signals such that events therein resulting from actuations of the first source are substantially coherent in all spatial directions, coherency filtering the first source coherency sorted signals, sorting the seismic signals such that events therein resulting from actuations of the second source are substantially coherent in all spatial directions, and coherency filtering the second source coherency sorted signals.

    Abstract translation: 公开了一种用于分离由地震信号驱动至少两种不同地震能量源所产生的能量的方法。 源被致动以在第一个和第二个源的连续致动之间提供可变的时间延迟。 该方法包括对地震信号进行排序,使得其中由第一源的致动所产生的事件在所有空间方向上基本一致,一致性滤除第一源相关性排序的信号,对地震信号进行排序,使得其中由第二源的致动引起的事件 在所有空间方向上基本相干,并且相关性对第二源相关性排序信号进行滤波。

    Method and system for acquiring marine seismic data using multiple seismic sources
    6.
    发明授权
    Method and system for acquiring marine seismic data using multiple seismic sources 有权
    使用多个震源获取海洋地震资料的方法和系统

    公开(公告)号:US06906981B2

    公开(公告)日:2005-06-14

    申请号:US10197235

    申请日:2002-07-17

    CPC classification number: G01V1/006 G01V1/3808

    Abstract: A method for seismic surveying is disclosed which includes towing a first seismic energy source and at least one seismic sensor system. A second seismic energy source is towed at a selected distance from the first source. The first seismic energy source and the second seismic energy source are actuated in a plurality of firing sequences. Each of the firing sequences includes firing of the first source, waiting a selected time firing the second source and recording signals generated by the seismic sensor system. The selected time between firing the first source and the second source is varied between successive ones of the firing sequences. The firing times of the first and second source are indexed so as to enable separate identification of seismic events originating from the first source and seismic events originating from the second source in detected seismic signals.

    Abstract translation: 公开了一种用于地震测量的方法,其包括牵引第一地震能量源和至少一个地震传感器系统。 第二地震能量源距离第一源被选择的距离被牵引。 第一地震能量源和第二地震能量源以多个点火序列致动。 每个起动序列包括第一源的点火,等待所选择的时间点火第二源和记录由地震传感器系统产生的信号。 在第一源和第二源的点火之间的选定时间在连续的点火序列之间是变化的。 对第一和​​第二源的点火时间进行索引,以便能够在检测到的地震信号中分别识别源自第一源的地震事件和源自第二源的地震事件。

    Method for acquiring and processing seismic survey data using ocean bottom cables and streamers
    7.
    发明授权
    Method for acquiring and processing seismic survey data using ocean bottom cables and streamers 有权
    使用海底电缆和拖缆获取和处理地震勘测数据的方法

    公开(公告)号:US06903998B2

    公开(公告)日:2005-06-07

    申请号:US10795739

    申请日:2004-03-08

    CPC classification number: G01V1/36 G01V1/3808 G01V2210/56

    Abstract: A method is disclosed for marine seismic surveying in which a seismic signal is detected in a body of water with a motion sensor and a pressure sensor positioned at a location proximate the bottom of the body of water. Seismic signals are detected with pressure sensors positioned in one or more streamer cables being towed in the body of water near the location proximate the bottom of the water at which a motion sensor and a pressure sensor are positioned. The signals detected by the motion sensor and pressure sensor positioned proximate the bottom of the body of water are used for calibrating the seismic signals detected with the pressure sensors positioned in the streamer cables.

    Abstract translation: 公开了一种用于海洋地震勘测的方法,其中在运动传感器和位于靠近水体底部的位置处的压力传感器在水体中检测到地震信号。 使用位于一个或多个拖缆中的压力传感器来检测地震信号,所述压力传感器被牵引在接近运动传感器和压力传感器所位于的水底部附近的位置的水体中。 由靠近水体底部的运动传感器和压力传感器检测到的信号用于校准用位于拖缆中的压力传感器检测到的地震信号。

    Method for acquiring and processing seismic survey data using ocean bottom cables and streamers
    8.
    发明授权
    Method for acquiring and processing seismic survey data using ocean bottom cables and streamers 有权
    使用海底电缆和拖缆获取和处理地震勘测数据的方法

    公开(公告)号:US06704244B1

    公开(公告)日:2004-03-09

    申请号:US10266406

    申请日:2002-10-08

    CPC classification number: G01V1/36 G01V1/3808 G01V2210/56

    Abstract: A method is disclosed for marine seismic surveying in which upgoing and downgoing components of a seismic wavefield at a seafloor location, and the seismic wavefield at a seismic streamer location substantially above the seafloor location are determined. The upgoing and downgoing seafloor components and the streamer seismic wavefield are used to determine a separation operator. The separation operator when applied to the streamer seismic wavefield provides an estimate of at least one of an upgoing wavefield component and a downgoing wavefield component of the determined seismic wavefield for the streamer location.

    Abstract translation: 公开了一种用于海洋地震测量的方法,其中确定了海底位置处的地震波场的上行和下行分量,以及确定地震拖缆位置处的地震波场。 上行和下行的海底分量和流光地震波场用于确定分离算子。 分离算子应用于流光地震波场时,为流光地理位置提供所确定的地震波场的上行波场分量和下行波场分量中的至少一个的估计。

    Method and system for increasing fold to streamer length ratio
    9.
    发明授权
    Method and system for increasing fold to streamer length ratio 失效
    增加折叠到拖缆长度比的方法和系统

    公开(公告)号:US5761152A

    公开(公告)日:1998-06-02

    申请号:US739408

    申请日:1996-10-29

    CPC classification number: G01V1/3808

    Abstract: A method and system are provided for use in marine seismic data surveys to increase fold and offset without increasing streamer length or drag on the streamer boat. Generally the method comprises the use of a second source boat positioned in the steamer path and firing the second source at a time before the recording of information from the first source is finished. By positioning the second source about one streamer length in front of the closest hydrophone, the fold is increased by two for the same length streamer.

    Abstract translation: 提供了一种用于海洋地震数据调查的方法和系统,以增加折叠和偏移,而不增加流光船长度或拖缆。 通常,该方法包括使用位于火轮路径中的第二源舟,并且在来自第一源的信息的记录完成之前的时间点火第二源。 通过将第二源定位在最接近的水听器前面的一个拖缆长度上,对于相同长度的拖缆,折叠增加了两倍。

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