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    DETERMINING NODE DEPTH AND WATER COLUMN TRANSIT VELOCITY
    2.
    发明公开
    DETERMINING NODE DEPTH AND WATER COLUMN TRANSIT VELOCITY 审中-公开

    公开(公告)号：EP3353577A1

    公开(公告)日：2018-08-01

    申请号：EP16849420.1

    申请日：2016-09-20

    申请人： Fairfield Industries Inc.

    发明人： UDENGAARD, Carsten

    IPC分类号： G01V1/28 ,  G01V1/36 ,  G01V1/38

    CPC分类号： G01V1/303 ,  G01V1/282 ,  G01V1/3835 ,  G01V1/3852 ,  G01V2210/121 ,  G01V2210/1293 ,  G01V2210/1427 ,  G01V2210/6222 ,  G01V2210/67 ,  G01V2210/74

    摘要： Systems and methods of detecting marine seismic survey parameters are provided. A data processing system can obtain seismic data from seismic data acquisition units disposed on a seabed responsive to an acoustic signal propagated from an acoustic source through a water column. The data processing system can determine from the seismic data, a direct arrival time for the acoustic signal at each of the plurality of seismic data acquisition units, and can obtain an estimated depth value of each of the plurality of seismic data acquisition units and an estimated water column transit velocity of the acoustic signal. The data processing system can apply a depth model and a water column transit velocity model to the estimated depth value and to the estimated water column transit velocity determine an updated depth value and an updated water column transit velocity for each of the plurality of seismic data acquisition units.

    SEISMIC ACQUISITION METHOD AND APPARATUS
    5.
    发明公开
    SEISMIC ACQUISITION METHOD AND APPARATUS 审中-公开
    地震采集方法和装置

    公开(公告)号：EP3227727A1

    公开(公告)日：2017-10-11

    申请号：EP15820677.1

    申请日：2015-12-01

    申请人： BP Corporation North America Inc.

    发明人： BRENDERS, Andrew James ,  DELLINGER, Joseph Anthony ,  ZHOU, Min

    IPC分类号： G01V1/28 ,  G01V1/38

    CPC分类号： G01V1/005 ,  G01V1/282 ,  G01V1/364 ,  G01V1/368 ,  G01V1/38 ,  G01V1/3808 ,  G01V1/3852 ,  G01V2210/324 ,  G01V2210/614 ,  G01V2210/6222 ,  G01V2210/67 ,  G01V2210/673 ,  G01V2210/679 ,  G06F17/10 ,  G06F17/50

    摘要： The presently disclosed seismic acquisition technique employs a receiver array and a processing methodology that are designed to attenuate the naturally occurring seismic background noise recorded along with the seismic data during the acquisition. The approach leverages the knowledge that naturally occurring seismic background noise moves with a slower phase velocity than the seismic signals used for imaging and inversion and, in some embodiments, may arrive from particular preferred directions. The disclosed technique comprises two steps: 1) determining from the naturally occurring seismic background noise in the preliminary seismic data a range of phase velocities and amplitudes that contain primarily noise and the degree to which that noise needs to be attenuated, and 2) designing an acquisition and processing method to attenuate that noise relative to the desired signal.

    摘要翻译： 目前公开的地震采集技术采用接收器阵列和处理方法，其被设计为衰减在采集期间与地震数据一起记录的自然产生的地震背景噪声。 该方法利用了自然发生的地震背景噪声以比用于成像和反演的地震信号更慢的相速度移动并且在一些实施例中可以从特定的优选方向到达的知识。 所公开的技术包括两个步骤：1）从初始地震数据中的自然发生的地震背景噪声确定主要包含噪声的相速度和幅度的范围以及该噪声需要被衰减的程度，以及2）设计 采集和处理方法来衰减相对于所需信号的噪声。

    SEISMIC ACQUISITION METHOD
    6.
    发明公开
    SEISMIC ACQUISITION METHOD 审中-公开
    地震采集方法

    公开(公告)号：EP3227725A1

    公开(公告)日：2017-10-11

    申请号：EP15813645.7

    申请日：2015-12-01

    申请人： BP Corporation North America Inc.

    发明人： DELLINGER, Joseph Anthony

    IPC分类号： G01V1/00 ,  G01V1/20 ,  G01V1/38

    CPC分类号： G01V1/005 ,  G01V1/282 ,  G01V1/364 ,  G01V1/368 ,  G01V1/38 ,  G01V1/3808 ,  G01V1/3852 ,  G01V2210/324 ,  G01V2210/614 ,  G01V2210/6222 ,  G01V2210/67 ,  G01V2210/673 ,  G01V2210/679 ,  G06F17/10 ,  G06F17/50

    摘要： The presently disclosed seismic acquisition technique employs a receiver array and a processing methodology that are designed to attenuate the naturally occurring seismic background noise recorded along with the seismic data during the acquisition. The approach leverages the knowledge that naturally occurring seismic background noise moves with a slower phase velocity than the seismic signals used for imaging and inversion and, in some embodiments, may arrive from particular preferred directions. The disclosed technique comprises two steps: 1) determining from the naturally occurring seismic background noise in the preliminary seismic data a range of phase velocities and amplitudes that contain primarily noise and the degree to which that noise needs to be attenuated, and 2) designing an acquisition and processing method to attenuate that noise relative to the desired signal.

    摘要翻译： 目前公开的地震采集技术采用接收器阵列和处理方法，其被设计为衰减在采集期间与地震数据一起记录的自然产生的地震背景噪声。 该方法利用了自然发生的地震背景噪声以比用于成像和反演的地震信号更慢的相速度移动并且在一些实施例中可以从特定的优选方向到达的知识。 所公开的技术包括两个步骤：1）从初始地震数据中的自然发生的地震背景噪声确定主要包含噪声的相速度和幅度的范围以及该噪声需要被衰减的程度，以及2）设计 采集和处理方法来衰减相对于所需信号的噪声。