Source for marine seismic acquisition and method
    65.
    发明授权
    Source for marine seismic acquisition and method 有权
    海洋地震采集来源及方法

    公开(公告)号:US09562981B2

    公开(公告)日:2017-02-07

    申请号:US14453056

    申请日:2014-08-06

    摘要: A method for generating acoustic waves under water includes actuating first and second pistons with an actuator system provided inside an enclosure of a source element, to generate a wave having a first frequency, and actuating the first and second pistons with a pressure mechanism attached to the enclosure, to control a pressure of a fluid inside the enclosure such that a pressure of the fluid is substantially equal to an ambient pressure of the enclosure. The enclosure has first and second openings and the first and second pistons are configured to close the first and second openings.

    摘要翻译: 用于在水下产生声波的方法包括:致动第一和第二活塞,其中致动器系统设置在源元件的外壳内,以产生具有第一频率的波,并且用连接到所述第一和第二活塞的压力机构致动所述第一和第二活塞 以控制外壳内的流体的压力,使得流体的压力基本上等于外壳的环境压力。 外壳具有第一和第二开口,并且第一和第二活塞构造成封闭第一和第二开口。

    Method and system for low-frequency pressurized source
    66.
    发明授权
    Method and system for low-frequency pressurized source 有权
    低频加压源的方法和系统

    公开(公告)号:US09557430B2

    公开(公告)日:2017-01-31

    申请号:US14982073

    申请日:2015-12-29

    申请人: CGG SERVICES SA

    IPC分类号: G01V1/135

    摘要: A source element for generating seismic waves includes a housing; a partitioning element placed inside the housing and configured to split the housing in a closed chamber and an opened chamber; and a valve in fluid communication with the closed chamber and configured to supply high-pressure air to the closed chamber to make the partitioning element oscillates. An oscillation of the partitioning element generates low-frequency seismic waves.

    摘要翻译: 用于产生地震波的源元件包括壳体; 分隔元件,放置在所述壳体内并且构造成将所述壳体分离在封闭的腔室和打开的腔室中; 以及阀,其与所述封闭室流体连通并且被配置为向所述封闭室供应高压空气以使所述分隔元件振荡。 分隔元件的振荡产生低频地震波。

    Method and system for pneumatic control for vibrator source element
    67.
    发明授权
    Method and system for pneumatic control for vibrator source element 有权
    振动源元件气动控制方法及系统

    公开(公告)号:US09535180B2

    公开(公告)日:2017-01-03

    申请号:US14172004

    申请日:2014-02-04

    申请人: CGG SERVICES SA

    摘要: Method, source array and source element that generate seismic waves. The source element includes an enclosure having an opening covered by a piston; a local supply accumulator fluidly communicating with an interior of the enclosure, a pressure of the fluid inside the local supply accumulator being larger than a pressure of the fluid inside the enclosure; a local supply valve located between the local supply accumulator and the enclosure and configured to control a flow of the fluid from the local supply accumulator to the interior of the enclosure; and a controller configured to control the local supply valve such that the pressure inside the enclosure does not fall below a first preset value based upon an ambient pressure of the enclosure while seismic waves are generated.

    摘要翻译: 方法,源阵列和源元素,产生地震波。 源元件包括具有被活塞覆盖的开口的外壳; 与外壳内部流体连通的局部供应储液器,局部供应储液器内部的流体的压力大于外壳内流体的压力; 位于本地供给蓄电池和外壳之间并配置成控制流体从本地蓄电池到外壳内部的本地供应阀; 以及控制器,其被配置为控制所述局部供应阀,使得在产生地震波的同时,基于所述外壳的环境压力,所述外壳内的压力不会低于第一预设值。

    Compliance Chambers for Marine Vibrators
    68.
    发明申请
    Compliance Chambers for Marine Vibrators 有权
    海洋振动器合规室

    公开(公告)号:US20160306057A1

    公开(公告)日:2016-10-20

    申请号:US15191077

    申请日:2016-06-23

    IPC分类号: G01V1/135 G01V1/38

    摘要: A marine vibrator may include a containment housing, a sound radiating surface, and a compliance chamber. The compliance chamber may include a compliance chamber housing, a non-linear linkage assembly, and a low pressure chamber. The compliance chamber housing may define at least a portion of a compliance chamber internal volume having a compliance chamber internal gas pressure. The low pressure chamber may comprise a low pressure piston and a low pressure chamber housing. The low pressure chamber housing may define at least a portion of a low pressure chamber internal volume having a low pressure chamber internal gas pressure. The low pressure piston may be configured to move in response to a pressure differential across the low pressure piston such that a resonance frequency of the marine vibrator may be changed.

    摘要翻译: 海洋振动器可以包括容纳壳体,声辐射表面和顺应室。 顺应性腔室可以包括顺应性腔室壳体,非线性连杆组件和低压腔室。 顺应室壳体可以限定具有顺应室内部气体压力的顺应室内部体积的至少一部分。 低压室可以包括低压活塞和低压室壳体。 低压室壳体可以限定具有低压室内部气体压力的低压室内部体积的至少一部分。 低压活塞可以构造成响应于低压活塞两端的压差而移动,使得可以改变海洋振动器的共振频率。

    Method and system for low-frequency pressurized source
    69.
    发明授权
    Method and system for low-frequency pressurized source 有权
    低频加压源的方法和系统

    公开(公告)号:US09250337B2

    公开(公告)日:2016-02-02

    申请号:US14177537

    申请日:2014-02-11

    申请人: CGG SERVICES SA

    IPC分类号: G01V1/135

    摘要: A source element for generating seismic waves includes a housing; a partitioning element placed inside the housing and configured to split the housing in a closed chamber and an opened chamber; and a valve in fluid communication with the closed chamber and configured to supply high-pressure air to the closed chamber to make the partitioning element oscillates. An oscillation of the partitioning element generates low-frequency seismic waves.

    摘要翻译: 用于产生地震波的源元件包括壳体; 分隔元件,放置在所述壳体内并且构造成将所述壳体分离在封闭的腔室和打开的腔室中; 以及阀,其与所述封闭室流体连通并且被配置为向所述封闭室供应高压空气以使所述分隔元件振荡。 分隔元件的振荡产生低频地震波。

    PRESSURE WAVE GENERATOR WITH A SABOT LAUNCHED PISTON
    70.
    发明申请
    PRESSURE WAVE GENERATOR WITH A SABOT LAUNCHED PISTON 有权
    压力波发生器与SABOT启动活塞

    公开(公告)号:US20150321223A1

    公开(公告)日:2015-11-12

    申请号:US14655639

    申请日:2014-02-07

    IPC分类号: B06B1/18 F04D35/00

    摘要: Examples of a pressure wave generator configured to generate high energy pressure waves in a medium are disclosed. The pressure wave generator can include a sabot carrying a piston. The sabot can further comprise a locking means to lock the piston in a fixed position when the locking means are activated. When the locking means are in a deactivated position, the piston can be released and can move at least partially away from the sabot. The sabot carrying the piston can be disposed within an inner bore of a housing of the pressure wave generator and can move within the inner bore of the housing from its first end toward its second end along a longitudinal axis of the bore. A transducer can be accommodated in the second end of the housing. The transducer can be coupled to the medium and can convert a portion of the kinetic energy of the piston into a pressure wave in the medium upon impact of the piston with the transducer. The sabot carrying the piston can be accelerated by applying a motive force to the sabot. Once accelerated within the inner bore of the housing the sabot can be decelerated by applying a restraining force to the sabot while the piston can be released at least partially from the sabot to continue to move toward the transducer until it impacts the transducer. Examples of methods of operating the pressure wave generator are disclosed.

    摘要翻译: 公开了在介质中产生高能压波的压力波发生器的实例。 压力波发生器可以包括承载活塞的膛体。 所述膛塞还可包括锁定装置,以在所述锁定装置被启动时将所述活塞锁定在固定位置。 当锁定装置处于停用位置时,活塞可以被释放并且可以至少部分地远离膛体移动。 携带活塞的支架可以设置在压力波发生器的壳体的内孔内,并且可以沿壳体的纵向轴线从壳体的第一端部朝向第二端部的内孔内移动。 传感器可以容纳在壳体的第二端。 传感器可以耦合到介质,并且可以在活塞与换能器冲击时将活塞的动能的一部分转换成介质中的压力波。 可以通过向膛体施加动力来加速承载活塞的膛塞。 一旦在壳体的内孔内加速,则可以通过在活塞至少部分地从活塞释放活塞以继续朝向换能器移动直到其冲击换能器来施加约束力而将减震器减速。 公开了操作压力波发生器的方法的实例。