Pressure-Compensated Sources
    51.
    发明公开
    Pressure-Compensated Sources 审中-公开
    压力补偿源

    公开(公告)号:EP2801843A3

    公开(公告)日:2014-12-17

    申请号:EP14165500.1

    申请日:2014-04-22

    IPC分类号: G01V1/145 G10K9/12

    摘要: Embodiments related to sound sources for marine geophysical surveys. An embodiment provides a sound source (2), comprising: an outer shell (10) containing a first gas at a first gas pressure; and a compliance chamber (4) in indirect fluid communication with the first gas, the compliance chamber containing a second gas at a second gas pressure, wherein the second gas pressure is lower than the first gas pressure. An embodiment provides a sound source for marine geophysical surveys, comprising: an outer shell; a mass coupled to the outer shell; and an actuator coupled to the outer shell. Additional apparatus and methods are disclosed herein.

    摘要翻译: 涉及海洋地球物理调查的声源的实施例。 一个实施例提供了一种声源(2),包括:包含第一气体压力的第一气体的外壳(10) 以及与所述第一气体间接流体连通的柔顺室(4),所述柔顺室包含处于第二气体压力的第二气体,其中所述第二气体压力低于所述第一气体压力。 一个实施例提供了用于海洋地球物理勘测的声源,包括:外壳; 与外壳联接的质量块; 以及联接到外壳的致动器。 本文公开了另外的装置和方法。

    Pressure-Compensated Sources
    52.
    发明公开
    Pressure-Compensated Sources 审中-公开
    压力补偿来源

    公开(公告)号:EP2801843A2

    公开(公告)日:2014-11-12

    申请号:EP14165500.1

    申请日:2014-04-22

    IPC分类号: G01V1/145 G10K9/12

    摘要: Embodiments related to sound sources for marine geophysical surveys. An embodiment provides a sound source (2), comprising: an outer shell (10) containing a first gas at a first gas pressure; and a compliance chamber (4) in indirect fluid communication with the first gas, the compliance chamber containing a second gas at a second gas pressure, wherein the second gas pressure is lower than the first gas pressure. An embodiment provides a sound source for marine geophysical surveys, comprising: an outer shell; a mass coupled to the outer shell; and an actuator coupled to the outer shell. Additional apparatus and methods are disclosed herein.

    ACOUSTIC TRANSMITTER
    55.
    发明授权
    ACOUSTIC TRANSMITTER 失效
    声波发射机

    公开(公告)号:EP0793811B1

    公开(公告)日:2002-10-16

    申请号:EP95918782.4

    申请日:1995-05-05

    申请人: PGS Seres AS

    IPC分类号: G01V1/02 G01V1/145 B06B1/10

    摘要: Acoustic transmitter in particular for use in offshore seismic explorations, having sound-emitting surfaces (1, 2) being adapted to be subjected to vibrational movement by means of a drive unit (21) through at least one push element (22A, 22B) and two plate-like end pieces (3, 4) which are connected to the sound-emitting surfaces. The sound-emitting surfaces are formed by two curved plate members (1, 2) being of comparable width and heigth dimensions. The end pieces (3, 4) have a generally rectangular shape with a first pair of opposing side edges connected (5, 6, 7, 8) to end portions of the plate members (1, 2). Another pair of side edges on each end piece (3, 4) as well as side edges of the plate members engage two side plates (9, 10) which at either side closes the acoustic transmitter, preferably in a tightly enclosing manner.

    摘要翻译: 特别用于离岸地震勘探的声波发射器,其具有适于借助于驱动单元(21)通过至少一个推动元件(22A,22B)进行振动运动的发声表面(1,2),以及 两个与发声表面连接的板状末端件(3,4)。 发声表面由具有可比较宽度和高度尺寸的两个弯曲板构件(1,2)形成。 端部件(3,4)具有大致矩形的形状,其中第一对相对的侧边缘(5,6,7,8)连接到板构件(1,2)的端部。 每个端部件(3,4)上的另一对侧边缘以及板件的侧边缘优选以紧密封闭的方式接合两个侧板(9,10),所述侧板在任一侧封闭声发射器。