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    Quality control for broadband sweeps
    2.
    发明授权
    Quality control for broadband sweeps 有权

    公开(公告)号：US09891332B2

    公开(公告)日：2018-02-13

    申请号：US14282480

    申请日：2014-05-20

    申请人： Sercel

    发明人： Gilles Ollivrin

    IPC分类号： G01V1/30 ,  G01V1/00 ,  G01V1/02

    CPC分类号： G01V1/307 ,  G01V1/005 ,  G01V1/02 ,  G01V2200/14 ,  G01V2210/1214

    摘要： A method for determining a quality control quantity corresponding to energy provided by a seismic source and related devices are provided. The method includes determining an envelope of a pilot signal associated with the seismic source; measuring a source signal of the energy provided by the seismic source; normalizing the pilot signal and the source signal using the determined envelope; and determining, in a processor, the quality control quantity using the normalized pilot signal and the normalized source signal. A control mechanism configured to implement the method includes a storage device holding data of a pilot signal associated with the seismic source; and a processor connected to the storage device and configured to carry out the method steps. A computer-readable medium having instructions to carry out steps of the method is also provided.

    CONTROL SYSTEM FOR MARINE VIBRATORS OPERATING NEAR IMPULSIVE SEISMIC SIGNAL SOURCES
    5.
    发明申请
    CONTROL SYSTEM FOR MARINE VIBRATORS OPERATING NEAR IMPULSIVE SEISMIC SIGNAL SOURCES 审中-公开
    海上振动台操纵近似地震信号源的控制系统

    公开(公告)号：US20160327663A1

    公开(公告)日：2016-11-10

    申请号：US15109234

    申请日：2014-12-30

    申请人： PGS GEOPHYSICAL AS

    发明人： Bo Magnus Bernhardsson ,  Nils Gunnar Olof Kröling ,  Per Birger Gunnarsson

    IPC分类号： G01V1/04 ,  G01V1/02 ,  G01V1/38 ,  G01V1/143

    CPC分类号： G01V13/00 ,  G01V1/005 ,  G01V1/04 ,  G01V1/143 ,  G01V1/145 ,  G01V1/159 ,  G01V1/38 ,  G01V2210/1214

    摘要： Techniques are disclosed relating to control of seismic sources such as marine vibrators. According to some embodiments, iterative learning control (ILC) systems may be used to control such seismic sources. According to some embodiments, local sensor(s) placed in, on, or near a seismic source and/or remote sensors placed in the far-field region may be used to determine a transfer function for the seismic source for such ILC control. A sensor is configured to measure the acoustic output of the marine vibrator along with signal pulses from at least one impulsive seismic signal source. The ILC is disabled when it is determined that the impulsive seismic is active based on the sensor measurements.

    摘要翻译： 公开了关于诸如海洋振动器的地震源的控制的技术。 根据一些实施例，可以使用迭代学习控制（ILC）系统来控制这种地震源。 根据一些实施例，放置在放置在远场区域中的地震源和/或远程传感器中，附近或附近的局部传感器可用于确定用于这种ILC控制的地震源的传递函数。 传感器被配置成测量海洋振动器的声输出以及来自至少一个脉冲地震信号源的信号脉冲。 当基于传感器测量确定脉冲地震是有效时，ILC被禁用。

    METHODS AND SYSTEMS FOR SEISMIC IMAGING USING CODED DIRECTIVITY
    6.
    发明申请
    METHODS AND SYSTEMS FOR SEISMIC IMAGING USING CODED DIRECTIVITY 有权
    使用编码方向进行地震成像的方法和系统

    公开(公告)号：US20160202379A1

    公开(公告)日：2016-07-14

    申请号：US14911564

    申请日：2014-09-11

    申请人： CGG SERVICES SA

    发明人： John SALLAS

    IPC分类号： G01V1/38

    CPC分类号： G01V1/3808 ,  G01V1/005 ,  G01V1/006 ,  G01V1/3861 ,  G01V2210/1214 ,  G01V2210/127

    摘要： Method, source array and seismic vibro-acoustic source element for seismic data acquisition. The number of beams of acoustic energy to be generated for the seismic data acquisition are determined or selected. A different pilot signal is generated for each of the number of beams of acoustic energy. A plurality of drive signals are generated using the different pilot signals. An array of source elements are driven using the plurality of drive signals to generate the two or more beams of acoustic energy.

    摘要翻译： 用于地震数据采集的方法，源阵列和地震振动声源元件。 确定或选择要为地震数据采集生成的声能束的数量。 对于数量的声能束中的每一个产生不同的导频信号。 使用不同的导频信号来生成多个驱动信号。 使用多个驱动信号驱动源元件阵列以产生两个或更多个声能能量束。

    Surveying techniques using multiple different types of sources
    7.
    发明授权
    Surveying techniques using multiple different types of sources 有权

    公开(公告)号：US11899151B2

    公开(公告)日：2024-02-13

    申请号：US16213214

    申请日：2018-12-07

    申请人： PGS Geophysical AS

    发明人： Edwin Hodges ,  Manuel Beitz

    IPC分类号： G01V1/38

    CPC分类号： G01V1/3808 ,  G01V2210/121 ,  G01V2210/127 ,  G01V2210/1212 ,  G01V2210/1214 ,  G01V2210/61 ,  G01V2210/612

    摘要： Techniques are disclosed relating to acquisition and imaging for marine surveys. In some embodiments, a transition survey that uses both one or more sources of a first type (e.g., impulsive sources) and one or more sources of a second type (e.g., vibratory sources) may facilitate calibration of prior surveys that use the first type of sources with subsequent surveys that use the second type of source. In some embodiments, the different types of sources may be operated simultaneously at approximately the same location. In some embodiments, signals generated by the sources are separated, e.g., using deconvolution. The signals may then be compared to generate difference information, which in turn may be used to adjust sensor measurements from a previous or subsequent survey. In various embodiments, the disclosed techniques may improve accuracy in images of geological formations and may facilitate transitions to new types of seismic sources while maintaining continuity in 4D surveys.

    System and method for seismic surveying using distributed sources
    10.
    发明授权
    System and method for seismic surveying using distributed sources 有权
    使用分布式资源进行地震勘测的系统和方法

    公开(公告)号：US09322945B2

    公开(公告)日：2016-04-26

    申请号：US13787520

    申请日：2013-03-06

    申请人： PGS Geophysical AS

    发明人： Stig Rune Lennart Tenghamn

    IPC分类号： G01V1/38 ,  G01V1/02

    CPC分类号： G01V1/38 ,  G01V1/04 ,  G01V1/159 ,  G01V1/3808 ,  G01V1/3817 ,  G01V2210/1214 ,  G01V2210/1293

    摘要： Disclosed are methods and systems for marine surveying that use electrically powered seismic sources that are distributed at spaced apart locations. In one example, a marine seismic survey system comprises: a survey vessel; a plurality of seismic sources configured to be towed by the survey vessel, wherein the seismic sources are electrically powered and are distributed behind the survey vessel at spaced apart locations with a spacing of about 50 meters or more; and a plurality of sensor streamers configured to be towed.

    摘要翻译： 公开了用于海洋测量的方法和系统，其使用分布在间隔开的位置的电动地震源。 在一个例子中，海洋地震勘测系统包括：一个测量船; 多个地震源被构造成由测量船拖动，其中地震源是电动的，并且以约50米或更大的间隔的间隔开的位置分布在测量船后面; 以及构造成被牵引的多个传感器拖缆。