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101.发明申请公开(公告)号：US20130100762A1
公开(公告)日：2013-04-25
申请号：US13710149
申请日：2012-12-10
Applicant: WESTERNGECO L.L.C.
Inventor： Johan O. A. ROBERTSSON , Dirk-Jan VAN MANEN , David Fraser HALLIDAY , Robert Montgomery LAWS
CPC classification number: G01V1/308 , G01V1/38 , G01V1/3808 , G01V1/3817 , G01V1/3843 , G01V1/3861
Abstract: The technologies described herein include systems and methods for performing a first seismic survey and performing a second seismic survey after a predetermined amount of time has lapsed between the first seismic survey and the second seismic survey. The shot times and the shot positions of the second seismic survey may be substantially the same as the shot times and the shot positions of the first seismic survey. After performing the seismic surveys, seismic data generated by the first seismic survey may be processed to generate a first image, and seismic data generated by the second seismic survey may be processed to generate a second image. After generating the first and second images, a difference between the first image and the second image may be computed to generate a time lapse difference image.
Abstract translation: 本文描述的技术包括用于执行第一次地震测量并在第一次地震测量和第二次地震勘测之后经过预定时间的时间之后执行第二次地震勘测的系统和方法。 第二次地震测量的拍摄时间和拍摄位置可以与第一次地震勘测的拍摄时间和拍摄位置基本相同。 在执行地震勘测之后，可以处理由第一地震勘测产生的地震数据以产生第一图像，并且可以处理由第二地震勘测产生的地震数据以产生第二图像。 在产生第一和第二图像之后，可以计算第一图像和第二图像之间的差异以产生时间差分图像。
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公开(公告)号：US20030193837A1
公开(公告)日：2003-10-16
申请号：US10376076
申请日：2003-02-27
Inventor： Bjorn Eino Rommel
IPC: G01V001/00
CPC classification number: G01V1/003
Abstract: A method of evaluating a seismic survey to be carried out at a particular survey location comprises choosing an initial seismic surveying arrangement. One or more parameters of AVO (amplitude versus offset) uncertainty are then determined from the seismic surveying arrangement using a model of the earth's interior at the survey location. If the parameter(s) of AVO uncertainty are not acceptable the seismic surveying arrangement is changed, and the AVO uncertainty parameter(s) re-determined for the new acquisition geometry. The determination of the AVO uncertainty parameter(s) may make use of prior information such as the noise covariance and/or model covariance. This enables the AVO uncertainty parameters to be estimated independent of any seismic data.
Abstract translation: 评估在特定勘测位置进行的地震勘测的方法包括选择初始地震测量装置。 然后使用地面测量位置的地面模型从地震测量装置确定一个或多个AVO参数（幅度对偏移）不确定度。 如果AVO不确定度的参数不可接受，则改变地震测量装置，并为新的采集几何重新确定AVO不确定度参数。 AVO不确定性参数的确定可以利用诸如噪声协方差和/或模型协方差之类的先前信息。 这使得能够独立于任何地震数据来估计AVO不确定性参数。
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公开(公告)号：US20030167126A1
公开(公告)日：2003-09-04
申请号：US10342936
申请日：2003-01-15
Applicant: Westerngeco L.L.C.
Inventor： Steve A. Horne , James E. Gaiser , Erika Angerer
IPC: G01V001/28
CPC classification number: G01V1/286
Abstract: A method and apparatus for use in seismic prospecting are disclosed. The method comprises partitioning a plurality of converted split shear-wave data resulting from a common event and recorded at a plurality of azimuths and a plurality of offsets as a function of the azimuths and offsets; separating fast and slow split shear-wave wavefields in the partitioned data; deriving at least one attribute of at least one of the separated fast and slow shear-wave wavefields; and analyzing the derived attribute. The apparatus comprises, in one aspect, a program storage medium encoded with instruction that perform the method when executed by a computing device or a computer programmed to perform the device.
Abstract translation: 公开了一种用于地震勘探的方法和装置。 该方法包括将由公共事件产生的多个转换的分割剪切波数据分割成多个方位角和多个偏移量，作为方位角和偏移的函数; 分割数据中分离快，慢分裂剪切波场; 导出分离的快速和慢速剪切波场中的至少一个的至少一个属性; 并分析派生属性。 该装置在一个方面包括编码有指令的程序存储介质，该指令在由计算设备执行时执行，或者被编程为执行该设备的计算机执行。
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公开(公告)号：US20030110018A1
公开(公告)日：2003-06-12
申请号：US10016437
申请日：2001-12-10
Applicant: WesternGeco L.L.C.
Inventor： Nader Dutta , Subhashis Mallick
IPC: G06G007/48
Abstract: The present invention presents a method for determining shallow water flow risk using seismic data. The seismic data can be processed to enhance its stratigraphic resolution by sub-sampling the seismic data to less than a two-millisecond interval. Performing a stratigraphic analysis on the seismic data and evaluating the seismic attributes of the seismic data can be used to select a control location. A pre-stack waveform inversion is applied to seismic data at a selected control location to provide an elastic model, which includes pressure-wave velocity and shear-wave velocity. The shallow water flow risk is then determined using the elastic model by comparing the pressure-wave velocity to the shear-wave velocity. A post-stack inversion can be applied on the seismic data using the elastic model to model a 3D volume to determine the shallow water flow risk across the 3D volume.
Abstract translation: 本发明提出了使用地震数据确定浅水流量风险的方法。 通过对地震数据进行二次采样，可以对地震数据进行处理，以提高其地层分辨率，使其小于2毫秒。 对地震数据进行地层分析，并对地震数据的地震属性进行评估，可用于选择控制位置。 将叠前波形反演应用于所选择的控制位置的地震数据，以提供包括压波速度和剪切波速度的弹性模型。 然后通过将压力波速度与剪切波速度进行比较，使用弹性模型确定浅水流量风险。 可以使用弹性模型对地震数据应用叠前反转，以建模3D体积，以确定跨越3D体积的浅水流量风险。
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公开(公告)号：US20030074140A1
公开(公告)日：2003-04-17
申请号：US09981226
申请日：2001-10-17
Applicant: WesternGeco L.L.C.
Inventor： Scott MacKay
IPC: G01V001/28
CPC classification number: G01V1/38 , G01V1/362 , G01V2210/52
Abstract: This invention removes the effects of variable water velocity by calculating and applying corrections that map the seismic data to an ideal case of constant water velocity. All of the corrections assume, from a separate analysis step, that the vertical (zero-offset) timing errors induced by the water-velocity variations and that the zero-offset water bottom times are available. Equivalently, the water velocities are assumed known. The timing errors and water velocities are related. The zero-offset water-bottom times are also assumed available. From this information, and an arbitrarily-defined nullidealnull water velocity, it is possible to calculate an observed (actual) water velocity relative to the nullidealnull case. The only additional information needed is the angle of the ray path through the water layer. The angle may be calculated directly from normal moveout velocities derived from conventional analysis of the seismic data, and the information above. A time-dependent and offset-dependent correction may be derived for each sample of the seismic data prior to normal moveout correction.
Abstract translation: 本发明通过计算和应用将地震数据映射到恒定水速的理想情况的校正来消除可变水速的影响。 所有的修正都是从单独的分析步骤假设水流速度变化引起的垂直（零偏移）定时误差以及零偏移水底时间是可用的。 同样地，水速度被认为是已知的。 定时误差和水位相关。 零偏移水底时间也假设可用。 根据该信息和任意定义的“理想”水速度，可以计算相对于“理想”情况的观测（实际）水速度。 所需的唯一附加信息是通过水层的射线路径的角度。 角度可以直接从从地震数据的常规分析得到的正常移动速度以及上述信息来计算。 对于正常移动校正之前的地震数据的每个采样，可以导出时间依赖和偏移相关的校正。
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Patent Agency Ranking
公开(公告)号：US10353100B2
公开(公告)日：2019-07-16
申请号：US13848490
申请日：2013-03-21
Applicant: WESTERNGECO L.L.C.
Inventor： Nicolas Goujon , Johan O. A. Robertsson , Ahmet Kemal Ozdemir
IPC: G01V1/38
Abstract: A technique includes receiving first data acquired by at least a particle motion gradient sensor or a rotation sensor of a streamer that is subject to vibration due to towing of the streamer; and receiving second data acquired by at least one particle motion sensor of the streamer and being indicative of particle motion and vibration noise. The technique includes processing the second data in a processor-based machine to, based at least in part on the first data, attenuate the vibration noise indicated by the second data to generate third data indicative of the particle motion.
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公开(公告)号：US10094944B2
公开(公告)日：2018-10-09
申请号：US14478414
申请日：2014-09-05
Applicant: WESTERNGECO L.L.C.
Inventor： Everhard Johan Muijzert
Abstract: Separating survey data for multiple survey sources where first survey data along a first axis measured by a survey sensor device is received, the first survey data responsive to activations of the plurality of survey sources at respective azimuths with respect to the survey sensor device. Second survey data is rotated towards a first azimuth of a first of the plurality of survey sources. The rotated second survey data is used as a model of interference caused by a subset of the plurality of survey sources excluding the first survey source. In other examples, a time dithering technique is performed to separate survey data for multiple survey sources.
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公开(公告)号：US10088583B2
公开(公告)日：2018-10-02
申请号：US14637363
申请日：2015-03-03
Applicant: WesternGeco L.L.C.
Inventor： Claudio Bagaini , Ian Moore
Abstract: A technique includes generating vibroseis sweeps for a vibroseis survey to produce seismic data acquired in response to seismic signals produced by the sweeps. The generation of the vibroseis sweeps including temporally arranging the sweeps into time-overlapping groups. The technique includes regulating a timing of the groups relative to each other based on a slip time. The technique also includes regulating a timing of the sweeps of each group such that consecutive sweep firings of each group are spaced apart by a time substantially less than the slip time.
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公开(公告)号：US09857487B2
公开(公告)日：2018-01-02
申请号：US14432765
申请日：2013-09-30
Applicant: WESTERNGECO L.L.C.
Inventor： Robert Seth Hartshorne , Anders Nesheim , Steven Antony Gahlings , Gary John Tustin
CPC classification number: G01V1/201 , B29C47/025 , B29C47/065 , B29D23/00 , B29K2075/00 , B29K2083/00 , B29K2995/0093 , G01V1/38 , G01V13/00
Abstract: A marine seismic streamer comprising a solid, hydrophobic core member that is encased in a hydrophobic streamer skin/casing. The hydrophobic streamer skin may be extruded onto and/or heat welded to the hydrophobic core member. The hydrophobic streamer skin/casing may comprise a thermoplastic polyurethane that includes fluorine and/or silicon moieties, silicon, polydimethylsiloxane or the like. The hydrophobic streamer skin/casing may reduce the drag of the streamer and may provide anti-biofouling properties to the streamer. A hydrophobic paint, coating or polymer may in some instances be disposed on top of the hydrophobic streamer skin/casing.
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110.发明授权公开(公告)号：US09835749B2
公开(公告)日：2017-12-05
申请号：US13736574
申请日：2013-01-08
Applicant: WESTERNGECO L.L.C.
Inventor： Robbert J. De Kok , Nicolas Goujon , Leendert Combee , Aslaug Stroemmen Melboe
Abstract: Apparatus and methods for acquiring seismic data using a seabed seismic data cable positioned on a seabed are described, including correcting for the effect of one or more sensor non-linear motions, which improves accuracy of seismic data. One or multiple non-linear movements of the sensor may be corrected for. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
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