Control system for marine vibrators and seismic acquisition system using such control system
    32.
    发明授权
    Control system for marine vibrators and seismic acquisition system using such control system 有权
    海洋振动器控制系统和采用这种控制系统的地震采集系统

    公开(公告)号:US07974152B2

    公开(公告)日:2011-07-05

    申请号:US12456841

    申请日:2009-06-23

    IPC分类号: G01V1/38

    CPC分类号: G01V1/159 G10K9/121

    摘要: A method for controlling output of a marine seismic vibrator includes operating the vibrator using a predetermined driver signal. A vibrator output signal is measured at at least two different places on the vibrator. The at least two measured vibrator output signals are used to determine a corrected driver signal, wherein the corrected driver signal results in fewer harmonics of fundamental frequencies in the vibrator output. The vibrator is operated using the corrected driver signal.

    摘要翻译: 用于控制海洋地震振动器的输出的方法包括使用预定的驾驶员信号操作振动器。 在振动器的至少两个不同位置处测量振动器输出信号。 使用至少两个测量的振动器输出信号来确定校正的驱动器信号,其中校正的驱动器信号在振动器输出中导致较少的基频谐波。 使用校正的驱动器信号来操作振动器。

    Particle motion sensor mounting for marine seismic sensor streamers
    33.
    发明授权
    Particle motion sensor mounting for marine seismic sensor streamers 有权
    用于海洋地震传感器拖缆的颗粒运动传感器安装

    公开(公告)号:US07926614B2

    公开(公告)日:2011-04-19

    申请号:US12288289

    申请日:2008-10-17

    IPC分类号: G01V1/04

    CPC分类号: G01V1/189 G01V1/184 G01V1/201

    摘要: A marine seismic streamer includes a jacket substantially covering an exterior of the streamer. At least one strength member is disposed along the length of the jacket. A sensor mount is coupled to the strength member. At least one particle motion sensor is suspended within the sensor mount at a selected location along the jacket. The at least one particle motion sensor is suspended in the jacket by at least one biasing device. A mass of the particle motion sensor and a force rate of the biasing device are selected such that a resonant frequency of the particle motion sensor within the sensor jacket is within a predetermined range. The sensor mount is configured such that motion of the jacket, the sensor mount and the strength member is substantially isolated from the particle motion sensor.

    摘要翻译: 海洋地震拖缆包括基本覆盖拖缆外部的护套。 沿着护套的长度设置至少一个强度构件。 传感器安装件联接到加强构件。 至少一个粒子运动传感器悬挂在传感器安装座内沿着护套的选定位置。 至少一个粒子运动传感器通过至少一个偏置装置悬挂在护套中。 选择粒子运动传感器的质量和偏置装置的力比,使得传感器套内的粒子运动传感器的共振频率在预定范围内。 传感器座被构造成使得护套,传感器座和强度构件的运动基本上与粒子运动传感器隔离。

    Method for generating spread spectrum driver signals for a seismic vibrator array using multiple biphase modulation operations in each driver signal chip
    34.
    发明申请
    Method for generating spread spectrum driver signals for a seismic vibrator array using multiple biphase modulation operations in each driver signal chip 有权
    用于在每个驱动器信号芯片中使用多个双相调制操作来产生用于地震振子阵列的扩频驱动信号的方法

    公开(公告)号:US20110038225A1

    公开(公告)日:2011-02-17

    申请号:US12462954

    申请日:2009-08-12

    IPC分类号: G01V1/38

    摘要: A method for generating seismic energy for subsurface surveying include operating a first seismic vibrator above an area of the subsurface to be surveyed and operating at least a second seismic vibrator above the area substantially contemporaneously with the operating the first seismic vibrator. The first and the second vibrators each have a different selected frequency response. The first and second vibrators each is operated by a same direct sequence spread spectrum signal, wherein a different number of modulation operations for each logical value in the direct sequence spread spectrum signal is selected for each vibrator.

    摘要翻译: 一种用于产生用于地下测量的地震能量的方法包括在被测地下地区的一个区域上方操作一个第一地震振动器,并在操作第一个地震振动器的同时运行至少一个第二地震振动器。 第一和第二振动器各自具有不同的选择的频率响应。 第一和第二振动器各自由相同的直接序列扩频信号操作,其中对于每个振动器选择对于直接序列扩频信号中的每个逻辑值的不同数量的调制操作。

    Seismic vibrator having multiple resonant frequencies in the seismic frequency band using multiple spring and mass arrangements to reduce required reactive mass
    35.
    发明授权
    Seismic vibrator having multiple resonant frequencies in the seismic frequency band using multiple spring and mass arrangements to reduce required reactive mass 有权
    地震振动器在地震频带中具有多个谐振频率,使用多个弹簧和质量布置来减少所需的反作用质量

    公开(公告)号:US07881158B2

    公开(公告)日:2011-02-01

    申请号:US12215863

    申请日:2008-06-30

    IPC分类号: G01V1/04

    CPC分类号: G01V1/145 G10K9/121

    摘要: A seismic vibrator includes a transducer, a reactive mass, a base plate to couple motion of the reactive mass to subsurface formations and a linkage system configured to couple motion of the transducer to the reactive mass and the base plate. The linkage system cooperates with the reactive mass and the transducer to define a first resonant frequency and a second resonant frequency within a range of 1 to 300 Hz.

    摘要翻译: 地震振动器包括换能器,反作用块,将反作用质量块的运动耦合到地下构造的基板以及被配置为将换能器的运动耦合到反作用块和基板的连杆系统。 联动系统与无功质量块和换能器配合,以定义1至300Hz范围内的第一共振频率和第二谐振频率。

    Control system for marine vibrators and seismic acquisition system using such control system
    36.
    发明申请
    Control system for marine vibrators and seismic acquisition system using such control system 有权
    海洋振动器控制系统和采用这种控制系统的地震采集系统

    公开(公告)号:US20100322028A1

    公开(公告)日:2010-12-23

    申请号:US12456841

    申请日:2009-06-23

    IPC分类号: G01V1/38

    CPC分类号: G01V1/159 G10K9/121

    摘要: A method for controlling output of a marine seismic vibrator includes operating the vibrator using a predetermined driver signal. A vibrator output signal is measured at at least two different places on the vibrator. The at least two measured vibrator output signals are used to determine a corrected driver signal, wherein the corrected driver signal results in fewer harmonics of fundamental frequencies in the vibrator output. The vibrator is operated using the corrected driver signal.

    摘要翻译: 用于控制海洋地震振动器的输出的方法包括使用预定的驾驶员信号操作振动器。 在振动器的至少两个不同位置处测量振动器输出信号。 使用至少两个测量的振动器输出信号来确定校正的驱动器信号,其中校正的驱动器信号在振动器输出中导致较少的基频谐波。 使用校正的驱动器信号来操作振动器。

    Autonomously operated marine seismic acquisition system
    37.
    发明申请
    Autonomously operated marine seismic acquisition system 审中-公开
    自主运行的海洋地震采集系统

    公开(公告)号:US20100302900A1

    公开(公告)日:2010-12-02

    申请号:US12456980

    申请日:2009-06-25

    IPC分类号: G01V1/38

    CPC分类号: G01V1/38

    摘要: A seismic survey system includes at least one autonomously operated vehicle and at least one seismic energy source associated with the autonomously operated vehicle. The autonomously operated vehicle includes a controller programmed to operate the at least one seismic energy source at selected times and to cause the autonomously operated vehicle to follow a predetermined geodetic path.

    摘要翻译: 地震勘测系统包括至少一个自主操作的车辆和与自主操作的车辆相关联的至少一个地震能量源。 自主操作的车辆包括被编程为在选定时间操作至少一个地震能量源并使自主操作的车辆遵循预定的大地测量路径的控制器。

    System for noise attenuation in marine seismic streamers
    38.
    发明授权
    System for noise attenuation in marine seismic streamers 有权
    海洋地震拖缆噪声衰减系统

    公开(公告)号:US07468932B2

    公开(公告)日:2008-12-23

    申请号:US11129474

    申请日:2005-05-13

    IPC分类号: G01V1/18

    CPC分类号: G01V1/201

    摘要: A marine seismic streamer section has at least one strength member positioned in the streamer section, a solid material, which may be a soft compliant solid material, substantially filling the marine seismic streamer section around the strength member; and means for mechanically decoupling the strength member from the solid material.

    摘要翻译: 海洋地震拖缆部分具有至少一个位于拖缆部分中的强度部件,固体材料可以是软的柔性固体材料,其基本上填充强度部件周围的海洋地震拖缆部分; 以及用于将强度构件与固体材料机械分离的装置。

    SYSTEM FOR NOISE ATTENUATION IN MARINE SEISMIC STREAMERS
    39.
    发明申请
    SYSTEM FOR NOISE ATTENUATION IN MARINE SEISMIC STREAMERS 有权
    海洋地震行业噪声衰减系统

    公开(公告)号:US20080175098A1

    公开(公告)日:2008-07-24

    申请号:US11129474

    申请日:2005-05-13

    IPC分类号: G01V1/38

    CPC分类号: G01V1/201

    摘要: A marine seismic streamer section has at least one strength member positioned in the streamer section, a solid material, which may be a soft compliant solid material, substantially filling the marine seismic streamer section around the strength member; and means for mechanically decoupling the strength member from the solid material.

    摘要翻译: 海洋地震拖缆部分具有至少一个位于拖缆部分中的强度部件,固体材料可以是软的柔性固体材料,其基本上填充强度部件周围的海洋地震拖缆部分; 以及用于将强度构件与固体材料机械分离的装置。