Apparatus and methods for multicomponent marine geophysical data gathering
    42.
    发明授权
    Apparatus and methods for multicomponent marine geophysical data gathering 有权
    多组分海洋地球物理数据采集的装置和方法

    公开(公告)号:US07239577B2

    公开(公告)日:2007-07-03

    申请号:US10233266

    申请日:2002-08-30

    CPC classification number: G01V1/181 G01V1/185 G01V1/189 G01V1/3808 G01V2210/56

    Abstract: In one embodiment the invention comprises a particle velocity sensor that includes a housing with a geophone mounted in the housing. A fluid that substantially surrounds the geophone is included within the housing. The particle velocity sensor has an acoustic impedance within the range of about 750,000 Newton seconds per cubic meter (Ns/m3) to about 3,000,000 Newton seconds per cubic meter (Ns/m3). In another embodiment the invention comprises method of geophysical exploration in which a seismic signal is generated in a body of water and detected with a plurality of co-located particle velocity sensors and pressure gradient sensors positioned within a seismic cable. The output signal of either or both of the particle velocity sensors or the pressure gradient sensors is modified to substantially equalize the output signals from the particle velocity sensors and the pressure gradient sensors. The output signals from particle velocity sensors and pressure gradient sensors are then combined.

    Abstract translation: 在一个实施例中,本发明包括粒子速度传感器,其包括具有安装在壳体中的地震检波器的壳体。 基本上围绕地震检波器的流体包括在壳体内。 粒子速度传感器的声阻抗在每立方米约750,000牛顿秒(Ns / m 3)至约3,000,000牛顿秒/立方米(Ns / m 3 / SUP>)。 在另一个实施例中,本发明包括地球物理勘探方法,其中在水体中产生地震信号并且利用位于地震缆索内的多个共同定位的粒子速度传感器和压力梯度传感器进行检测。 粒子速度传感器或压力梯度传感器中的任一个或两者的输出信号被修改为基本上均衡来自粒子速度传感器和压力梯度传感器的输出信号。 然后组合来自粒子速度传感器和压力梯度传感器的输出信号。

    Apparatus and method for bubble shielding towed marine cable
    43.
    发明授权
    Apparatus and method for bubble shielding towed marine cable 有权
    用于气泡屏蔽拖缆船用电缆的设备和方法

    公开(公告)号:US06982926B2

    公开(公告)日:2006-01-03

    申请号:US10264364

    申请日:2002-10-04

    CPC classification number: B63B1/38 B63B21/66 Y02T70/122

    Abstract: A cable for towing marine devices is disclosed. The cable includes a strength member and at least one conduit associated with the strength member. The conduit has apertures therein at selected locations along the conduit. The apertures are adapted to conduct gas from a source into water in which the cable is disposed. Also disclosed is a method for improving the flow of a cable through water. The method includes releasing a gaseous bubble stream proximate an outer surface of said cable while the water is moving relative to the cable.

    Abstract translation: 公开了一种用于牵引船用装置的电缆。 电缆包括强度构件和与强度构件相关联的至少一个导管。 导管在沿着导管的选定位置处具有孔。 这些孔适于将来自源的气体输送到其中设置电缆的水中。 还公开了一种改善电缆通过水流的方法。 该方法包括在水相对于电缆运动的同时释放靠近所述电缆的外表面的气泡流。

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