SYSTEM AND METHOD FOR REDUCING SIGNATURE VARIATION OF SEISMIC SOURCES
    1.
    发明申请
    SYSTEM AND METHOD FOR REDUCING SIGNATURE VARIATION OF SEISMIC SOURCES 审中-公开
    减少地震源的标志变化的系统和方法

    公开(公告)号:US20100149912A1

    公开(公告)日:2010-06-17

    申请号:US12337257

    申请日:2008-12-17

    IPC分类号: G01V1/38

    摘要: A technique facilitates the reduction of seismic source signature variation during a seismic survey. The technique involves estimating an azimuth angle and/or a departure angle for one or more seismic source elements. The angles are used to determine adjustments, such as seismic source depth adjustments, able to reduce seismic source signature variation. The adjustments can be made prior to firing the one or more seismic source elements.

    摘要翻译: 一种技术有助于减少地震勘测期间的震源特征变化。 该技术涉及估计一个或多个地震源元件的方位角和/或偏离角。 角度用于确定调整,例如震源深度调整,能够减少地震源特征变化。 可以在点燃一个或多个地震源元件之前进行调整。

    Randomization of data acquisition in marine seismic and electromagnetic acquisition
    2.
    发明授权
    Randomization of data acquisition in marine seismic and electromagnetic acquisition 失效
    数据采集​​在海洋地震和电磁采集中的随机化

    公开(公告)号:US08681581B2

    公开(公告)日:2014-03-25

    申请号:US12650319

    申请日:2009-12-30

    IPC分类号: G01V1/38

    CPC分类号: G01V1/3808

    摘要: The presently disclosed technique includes a method for use in a marine survey comprising randomizing the distribution of receivers and sources during a coil shoot acquisition. The randomizing can be implemented in a number of ways. For example, in one embodiment, randomizing the distribution includes randomizing the positions of the circle centers defining the sail lines. This may be implemented by, for example, distributing the same number of circle centers as would be used in a non-random sampling in a uniform random distribution. In another embodiment, randomizing the distribution includes permitting the streamers in which the receivers are allowed to drift while controlling crossline streamer separation. Other embodiments may combine these approaches or utilize still other approaches.

    摘要翻译: 目前公开的技术包括在海洋测量中使用的方法,其包括在线圈拍摄采集期间随机化接收器和源的分布。 随机化可以以多种方式实现。 例如,在一个实施例中,随机分配分布包括随机化定义帆线的圆心的位置。 这可以通过例如在均匀随机分布中分配与在非随机抽样中使用的相同数量的圆心来实现。 在另一个实施例中,随机分配分布包括允许允许接收机在其中漂移的拖缆,同时控制跨线拖缆分离。 其他实施例可以组合这些方法或利用其他方法。

    Method to acquire simultaneously seismic data with source arrays designed for specific targets
    3.
    发明授权
    Method to acquire simultaneously seismic data with source arrays designed for specific targets 失效
    采用为特定目标设计的源阵列同时获取地震数据的方法

    公开(公告)号:US08559264B2

    公开(公告)日:2013-10-15

    申请号:US13083068

    申请日:2011-04-08

    IPC分类号: G01V1/38

    CPC分类号: G01V1/3861 G01V1/38

    摘要: A method for acquiring seismic data. The method may include towing one or more seismic streamers in the water, towing a first air gun array and a second air gun array in the water at a first depth, and towing a third air gun array and a fourth air gun array in the water at a second depth greater than the first depth. While towing the air gun arrays, the first and second air gun arrays and the third and fourth air gun arrays may be separated by a cross line distance that depends on a separation between the seismic streamers. The method may also include firing seismic energy, by the first, second, third and fourth air gun arrays, through the water into the earth. After firing the seismic energy, the method may record seismic signals reflected from strata in the earth beneath the water.

    摘要翻译: 一种采集地震数据的方法。 该方法可以包括拖动水中的一个或多个地震拖缆,在第一深度处牵引第一气枪阵列和水中的第二气枪阵列,以及在水中牵引第三气枪阵列和第四气枪阵列 在大于第一深度的第二深度处。 在牵引气枪阵列的同时,第一和第二气枪阵列以及第三和第四气枪阵列可以被取决于地震拖缆之间的间隔的交叉线距离分开。 该方法还可以包括通过第一,第二,第三和第四气枪阵列通过水射入地球来发射地震能量。 在发射地震能量之后,该方法可以记录地下水层反射的地震信号。

    Method to acquire simultaneously seismic data with source arrays designed for specific targets
    4.
    发明授权
    Method to acquire simultaneously seismic data with source arrays designed for specific targets 有权
    采用为特定目标设计的源阵列同时获取地震数据的方法

    公开(公告)号:US07948825B2

    公开(公告)日:2011-05-24

    申请号:US11569255

    申请日:2004-06-17

    IPC分类号: G01V1/38

    CPC分类号: G01V1/3861 G01V1/38

    摘要: A method and apparatus for acquiring seismic data. In one embodiment, the method includes: moving a first air gun array in the water at a first depth and a second air gun array in the water at a second depth greater than the first depth, in which the total volume of the first air gun array is less than the total volume of the second air gun array, in which the first air gun array is separated from the second air gun array by a distance substantially equal to a shot point interval, firing seismic energy through the first and second air gun arrays through the water into the earth, and recording seismic signals reflected from strata in the earth beneath the water.

    摘要翻译: 一种用于采集地震数据的方法和装置。 在一个实施例中,该方法包括:使第一深度处的水中的第一气枪阵列和水中第二深度处的第二气枪阵列移动,第二深度大于第一深度,其中第一气枪的总体积 阵列小于第二气枪阵列的总体积,其中第一气枪阵列与第二气枪阵列分离大约等于射击点间隔的距离,通过第一和第二气枪发射地震能量 通过水排放到地球中,并记录从地下水下反射的地震信号。

    Method for attenuation of reverberations using a pressure-velocity
bottom cable
    5.
    发明授权
    Method for attenuation of reverberations using a pressure-velocity bottom cable 失效
    使用压力底部电缆衰减混响的方法

    公开(公告)号:US5621700A

    公开(公告)日:1997-04-15

    申请号:US650325

    申请日:1996-05-20

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

    摘要: A method is described that attenuates reverberations in ocean bottom cable data used to generate a seismic profile. First, a seismic wave is generated and recorded by pressure and particle velocity sensor pairs. Adding the product of the pressure data times the absolute value of the velocity data and the product of the velocity data times the absolute value of the pressure data eliminates reverberations, leaving a combined signal that is a function of only the primary wave response signal. Dividing this combined signal by the number 2 and a sensitivity scaling factor, and then taking the square root of the result produces the magnitude of the primary signal. Replacing the positive/negative sign of the combined signal that existed before taking the absolute value provides the proper polarity. The data are then incorporated into a seismic profile.

    摘要翻译: 描述了一种衰减用于产生地震剖面的海底电缆数据中的混响的方法。 首先,通过压力和粒子速度传感器对产生和记录地震波。 加上压力数据的乘积乘以速度数据的绝对值和速度数据的乘积乘以压力数据的绝对值可以消除混响,留下仅与主波响应信号有关的组合信号。 将该组合信号除以数字2和灵敏度比例因子,然后取结果的平方根产生主信号的幅度。 取绝对值之前存在的组合信号的正/负符号提供正确的极性。 然后将数据并入地震剖面。

    Method to attenuate strong marine seismic noise
    6.
    发明授权
    Method to attenuate strong marine seismic noise 有权
    衰减强海洋地震噪声的方法

    公开(公告)号:US08612157B2

    公开(公告)日:2013-12-17

    申请号:US12832247

    申请日:2010-07-08

    摘要: Methods to attenuating strong marine seismic noises using singular value decomposition, determining noisiest traces and estimating noise components only from these traces, iteratively estimating the noise and protecting signal behind the noise. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

    摘要翻译: 使用奇异值分解来衰减强海洋地震噪声的方法,仅从这些迹线确定噪声迹线并估计噪声分量,迭代地估计噪声并保护噪声后的信号。 提交它的理解是,它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72(b)。

    Methods for efficiently acquiring wide-azimuth towed streamer seismic data
    7.
    发明授权
    Methods for efficiently acquiring wide-azimuth towed streamer seismic data 有权
    用于有效获取宽方位拖缆式地震数据的方法

    公开(公告)号:US08559265B2

    公开(公告)日:2013-10-15

    申请号:US12121324

    申请日:2008-05-15

    IPC分类号: G01V1/38

    CPC分类号: G01V1/3808 G01V2210/165

    摘要: A technique for use in marine seismic surveying includes a method and an apparatus. In one aspect, the method includes towing a seismic spread including a source multiple streamers on a generally curved advancing path, the streamers being actively steered. The source is fired and data is acquired on the curve. In other aspects, the method is performed with only a single vessel or the generally curved advancing path is a sincurve advancing path. The method may include a dual circular shoot in another aspect. And, in yet another aspect, the invention includes an apparatus comprised of a computing apparatus on board a tow vessel receiving positioning data from the marine seismic streamers. It is also programmed to: sail the tow vessel in a generally curved advancing path and actively steer the marine seismic streamers through the generally curved advancing path.

    摘要翻译: 用于海洋地震勘测的技术包括一种方法和装置。 在一个方面,该方法包括在大致弯曲的前进路径上牵引包括源多拖缆的地震展开,所述拖缆被主动导向。 源被触发,数据在曲线上获取。 在其他方面,该方法仅使用单个容器进行,或者大致弯曲的前进路径是正弦行进路径。 该方法可以包括在另一方面的双圆形拍摄。 而且在另一方面,本发明包括一种装置,包括一个在船上的计算装置,该装置接纳来自海洋地震拖缆的定位数据。 它还被编程为:在大致弯曲的行进路径上航行拖船,并主动地引导海洋地震拖缆通过大致弯曲的行进路径。

    Enhancing the acquisition and processing of low frequencies for sub-salt imaging
    8.
    发明授权
    Enhancing the acquisition and processing of low frequencies for sub-salt imaging 有权
    加强亚盐成像低频采集和处理

    公开(公告)号:US07961549B2

    公开(公告)日:2011-06-14

    申请号:US11568531

    申请日:2004-06-16

    IPC分类号: G01V1/38

    CPC分类号: G01V1/3861 G01V1/38

    摘要: A method and apparatus for acquiring seismic signals from beneath a salt region in the earth. In one embodiment, the method includes tuning an air gun array to a first bubble oscillation; towing the air gun array in the water at a depth of at least 10 meters, in which the air gun array has a total volume in a range of about 6780 cubic inches to about 10,170 cubic inches; directing acoustic signals with the air gun array down through the water into the earth beneath the salt region; towing one or more seismic streamers in the water at one or more depths, in which at least one of the depths is at least 10 meters, in which each streamer comprises a plurality of hydrophones disposed therealong; and recording with the hydrophones seismic signals reflected from strata in the earth beneath the salt region.

    摘要翻译: 一种用于从地球上的盐区域下方获取地震信号的方法和装置。 在一个实施例中,该方法包括将气枪阵列调谐到第一气泡振荡; 在至少10米的深度的水中牵引气枪阵列,其中气枪阵列的总体积在约6780立方英寸至约10,170立方英寸的范围内; 将气枪阵列的声信号引导通过水进入盐区下方的地球; 在水中的一个或多个深度牵引一个或多个地震拖缆,其中至少一个深度至少为10米,其中每个拖缆包括沿其设置的多个水听器; 并用盐水区域下方的地球上的地层反射的水听器记录地震信号。

    Aircraft rescue systems and methods using predictive models

    公开(公告)号:US11562655B2

    公开(公告)日:2023-01-24

    申请号:US17737684

    申请日:2022-05-05

    IPC分类号: G08G5/00 B64C39/02

    摘要: Systems and methods for determining object location may include a memory and a processor. The processor may be configured to collect seismic data and geophysical data to determine object location. The processor may be configured to determine one or more seismic attributes associated with a plurality types of noises based on the seismic data and the geophysical data using one or more machine learning algorithms. The processor may be configured to eliminate unwanted noises from noise classifications based on the one or more seismic attributes. The processor may be configured to predict the object location by comparing time and velocity data of the object with recorded timing and velocity data. The processor may be configured to validate the object location by comparing the determined noise with image data. The systems and methods may be used in, for example, detecting missing planes such as Malaysian Airlines Flight 370.