Integrated marine seismic source and method

    公开(公告)号:US06556510B2

    公开(公告)日:2003-04-29

    申请号:US09727273

    申请日:2000-11-29

    Applicant: Loran D. Ambs

    Inventor: Loran D. Ambs

    CPC classification number: G01V1/006 G01V1/201

    Abstract: A system and method for generating acoustic source energy in marine seismic operations. A plurality of acoustic energy sources are integrated within seismic streamers to facilitate deployment, power distribution and signal communication. The acoustic energy sources can comprise slotted cylinders activatable with piezoelectric elements. By providing an array of lightweight, energy efficient acoustic energy sources throughout a seismic receiver array, both zero-offset and far-offset reflection data can be recorded. The acoustic energy discharge can be swept over a time interval, or steered in a selected pattern throughout the array, to significantly reduce the impulse energy released into the water. The reflected signals can be compressed back into an impulse for subsequent data processing. Bi-static reflections can be generated simultaneously with the zero-offset source-receiver locations to improve the vertical and horizontal resolution of data.

    Seismic optical acoustic recursive sensor system
    452.
    发明授权
    Seismic optical acoustic recursive sensor system 有权
    地震光学声学递归传感器系统

    公开(公告)号:US06522797B1

    公开(公告)日:2003-02-18

    申请号:US09144953

    申请日:1998-09-01

    CPC classification number: G01V1/201 G01H3/005 G01H9/004

    Abstract: A marine seismic fiber optic acoustic sensor system having internal mirrors with a low reflectivity written into the fiber to form a series of continuous, linear sensors incorporated in a single fiber, each sensor bounded by a pair of internal mirrors. A pulsed laser provides optical signals to the fiber at a pulse width less than twice the travel time to assure that there will be no phase or frequency modulation of signals returned from the sensors and reflected optical energy is returned through the same fiber to an optical coupler where it is input to a compensating interferometer to produce interference signals which are then time division multiplexed to produce signals corresponding to acoustic signals received by each mirror bound sensor. Calibration to remove local temperature effects is provided by using a desensitized reference fiber with internal mirrors identical to the sensitized fiber, by a piezoelectric stretcher built into the fiber or any other conventional calibration technique.

    Abstract translation: 海洋地震光纤声学传感器系统具有写入光纤中的低反射率的内部反射镜,以形成一系列连接的线性传感器,其结合在单个光纤中,每个传感器由一对内部反射镜限定。 脉冲激光器以小于传播时间的两倍的脉冲宽度向光纤提供光信号,以确保不会对从传感器返回的信号进行相位或频率调制,并且将反射的光能量通过相同的光纤返回到光耦合器 其中它被输入到补偿干涉仪以产生干扰信号,然后对其进行时分复用以产生对应于由每个镜面界定传感器接收的声信号的信号。 通过使用与感光纤维相同的内部反射镜的脱敏参考光纤,通过内置于光纤中的压电担架或任何其他常规校准技术来提供校准以消除局部温度影响。

    Method and apparatus for a non-oil-filled towed array with a novel hydrophone design and uniform buoyancy technique
    453.
    发明授权
    Method and apparatus for a non-oil-filled towed array with a novel hydrophone design and uniform buoyancy technique 有权
    具有新型水听器设计和均匀浮力技术的非油填充拖曳阵列的方法和装置

    公开(公告)号:US06498769B1

    公开(公告)日:2002-12-24

    申请号:US09635031

    申请日:2000-08-04

    Applicant: Richard Pearce

    Inventor: Richard Pearce

    CPC classification number: G01V1/201 G01V2001/204 G01V2001/207

    Abstract: A structure and method for constructing a non-oil-filled towed array providing a single cable entry point for each channel irregardless of the number of hydrophones used to make up a hydrophone group or array is described. The method and apparatus enables uniform buoyancy of the hydrophone array and the primary cable around which the hydrophone array is wound. Uniform buoyancy is achieved through the addition of hollow micro-spheres into a Reaction Injection Molded (RIM) polyurethane material used to mold the hydrophones. Additional buoyancy may be desired adjacent heavier cable sections where connectors and telemetry modules are located. An embodiment enables precise adjustment of hydrophone cable buoyancy by providing precise adjustment of the concentration of hollow glass micro-spheres in areas where more or less buoyancy is desired.

    Abstract translation: 描述了一种用于构造非油填充牵引阵列的结构和方法,其为每个通道提供单个电缆入口点,不管用于组成水听器组或阵列的水听器数量如何。 该方法和装置能够使水听器阵列和水听器阵列缠绕的主电缆均匀地浮起。 通过将空心微球加入到用于模制水听器的反应注射模塑(RIM)聚氨酯材料中来实现均匀的浮力。 在连接器和遥测模块所在的较重的电缆部分附近可能需要额外的浮力。 一个实施例可以通过在需要更少或更少浮力的区域中精确调整中空玻璃微球的浓度来精确调节水听器电缆浮力。

    Supporting structure of hydrophones for towed array sonar system
    454.
    发明授权
    Supporting structure of hydrophones for towed array sonar system 有权
    用于拖曳阵列声纳系统的水听器的支撑结构

    公开(公告)号:US06473365B2

    公开(公告)日:2002-10-29

    申请号:US09919736

    申请日:2001-08-01

    CPC classification number: G01V1/201 G01S15/88

    Abstract: A support structure of hydrophones for a towed array sonar system includes elastic members arranged in each sensor package and adapted to support a hydrophone received in the sensor package while attenuating vibrations transmitted to the sensor package. External vibrations, such as vibrations generated due to the running of a towing vessel or vibrations induced due to motions of a towing cable, which are irrespective of acoustic waves reflected by a target moving underwater, are attenuated by the hydrophone support structure during the transmission thereof from the sensor package to the hydrophones, so that the hydrophones are suppressed from vibrating due to the external vibrations. Accordingly, it is possible to reduce noise included in output signals of the hydrophones, thereby achieving an improvement in the sensing performance of the towed array sonar system.

    Abstract translation: 用于拖曳的阵列声纳系统的水听器的支撑结构包括布置在每个传感器封装中的弹性构件,并且适于支撑接收在传感器封装中的水听器,同时衰减传递到传感器封装的振动。 外部振动,例如由牵引容器的运行产生的振动或由牵引电缆的运动引起的振动,与水下移动的目标反射的声波无关,在其传输期间被水听器支撑结构衰减 从传感器封装到水听器,从而能够抑制由于外部振动而使水听器振动。 因此,能够降低水中乐器的输出信号中包含的噪声,从而实现了拖曳的阵列声呐系统的感测性能的提高。

    Hydrophone array with individually switchable hydrophone sensors
    455.
    发明申请
    Hydrophone array with individually switchable hydrophone sensors 有权
    水听器阵列,可单独切换水听器传感器

    公开(公告)号:US20020089896A1

    公开(公告)日:2002-07-11

    申请号:US10008289

    申请日:2001-11-08

    CPC classification number: G01V1/201 G01V1/38

    Abstract: The present invention is directed to a hydrophone streamer towable from a marine vessel on a body of water. The hydrophone streamer comprises a plurality of hydrophones electrically connected in parallel. Each hydrophone further comprises a normally-closed pressure activated switch connected in series with a hydrophone sensor. Each pressure switch is calibrated to open at a predetermined depth in the body of water thereby disabling the associated sensor without affecting operation of other hydrophones in the streamer.

    Abstract translation: 本发明涉及一种可从水体上的海洋船舶上拖曳的水听器拖缆。 水听器拖缆包括并联电连接的多个水听器。 每个水听器还包括与水听器传感器串联连接的常闭压力启动开关。 校准每个压力开关以在水体中的预定深度打开,从而禁用相关联的传感器,而不影响拖缆中其它水听器的操作。

    Restraint for marine flotation device
    456.
    发明申请
    Restraint for marine flotation device 审中-公开
    船舶浮选装置的限制

    公开(公告)号:US20020045989A1

    公开(公告)日:2002-04-18

    申请号:US09893233

    申请日:2001-06-26

    CPC classification number: G01V1/006 G01V1/201 G01V1/3843

    Abstract: A restraint use in a flotation apparatus having components, such as tubular member and couplings, includes a cord having a first end and a second end. Each of the ends is connected to a component. Preferably, the cord is run internally within a tubular member and connects two couplings that are fitted onto opposing ends of the tubular member. The cord has a breaking strength at least sufficient to restrain a coupling when the connection between the coupling and the tubular member is compromised such as when a coupling explosively releases from the tubular member. A method for assembling and operating a floating apparatus includes connecting a coupling to a stationary member, such as a second coupling, using a cord. The method can also include configuring the cord to have a breaking strength that is at least sufficient to restrain a coupling when the connection between the coupling and the tubular member is compromised such as when a coupling explosively releases from the tubular member.

    Abstract translation: 在具有诸如管状构件和联接件的部件的浮选装置中的限制用途包括具有第一端和第二端的帘线。 每个端部连接到组件。 优选地,绳索在管状构件的内部延伸并且连接装配到管状构件的相对端部上的两个联接件。 当联接器和管状构件之间的连接受到损害时,例如当联接器从管状构件爆炸释放时,帘线具有至少足以限制联接的断裂强度。 一种用于组装和操作浮动装置的方法包括使用绳索将耦合件连接到诸如第二联接器的固定构件。 该方法还可以包括将绳索配置为具有至少足以在联接器和管状构件之间的连接受损时至少足以限制联接的断裂强度,例如当联接器从管状构件爆炸释放时。

    Supporting structure of hydrophones for towed array sonar system

    公开(公告)号:US20020015359A1

    公开(公告)日:2002-02-07

    申请号:US09919736

    申请日:2001-08-01

    CPC classification number: G01V1/201 G01S15/88

    Abstract: A support structure of hydrophones for a towed array sonar system includes elastic members arranged in each sensor package and adapted to support a hydrophone received in the sensor package while attenuating vibrations transmitted to the sensor package. External vibrations, such as vibrations generated due to the running of a towing vessel or vibrations induced due to motions of a towing cable, which are irrespective of acoustic waves reflected by a target moving underwater, are attenuated by the hydrophone support structure during the transmission thereof from the sensor package to the hydrophones, so that the hydrophones are suppressed from vibrating due to the external vibrations. Accordingly, it is possible to reduce noise included in output signals of the hydrophones, thereby achieving an improvement in the sensing performance of the towed array sonar system.

    Floatation device for marine seismic energy sources
    458.
    发明授权
    Floatation device for marine seismic energy sources 有权
    海洋地震能源浮选装置

    公开(公告)号:US06301193B1

    公开(公告)日:2001-10-09

    申请号:US09270553

    申请日:1999-03-16

    CPC classification number: G01V1/006 G01V1/201 G01V1/3843

    Abstract: A floatation device for marine seismic energy sources. The floatation device includes one or more tubular members and a plurality of couplings for sealing and coupling the tubular members to one another. The couplings include an air valve for filling the tubular members with air. One or more marine seismic energy sources are preferably coupled to and supported by the floatation device.

    Abstract translation: 海洋地震能源浮选装置。 漂浮装置包括一个或多个管状构件和用于将管状构件彼此密封和联接的多个联接件。 联接器包括用于用空气填充管状构件的空气阀。 优选地,一个或多个海洋地震能量源耦合到浮动装置并由浮动装置支撑。

    Sensor array cable and fabrication method
    459.
    发明授权
    Sensor array cable and fabrication method 有权
    传感器阵列电缆及其制造方法

    公开(公告)号:US06278823B1

    公开(公告)日:2001-08-21

    申请号:US09265746

    申请日:1999-03-09

    CPC classification number: G02B6/4469 G01V1/201 G01V1/3808 G02B6/447 G02B6/4471

    Abstract: A sensor array cable and method of construction thereof utilizing a sensor/interlink assembly to facilitate the relatively easy and inexpensive installation of a sensor device in a cable that includes a strength member to provide tensile strength to the cable, optical fibers or wires for carrying electrical or optical energy to and from the sensor device, and a protective outer jacket. A portion of the protective outer jacket is removed allowing access to the inner strength member and optical fibers. A segment of the strength member is removed and an interlink/sensor assembly is installed in its place. The interlink serves to maintain the tensile strength of the cable. Optical fibers and/or electrical wires are connected to the sensor device for operation. The interlink/sensor assembly and associated optical fibers and electrical wires are then enclosed in an overmold which is sealed to the outer protective jacket.

    Abstract translation: 一种传感器阵列电缆及其构造方法,其利用传感器/互连组件来促进将传感器装置相对容易且便宜地安装在电缆中,所述电缆包括强度构件以向电缆提供拉伸强度,用于承载电气的光纤或电线 或来自传感器装置的光能,以及保护外护套。 去除保护外护套的一部分,允许进入内部强度构件和光纤。 去除强度构件的一段,并在其位置安装互连/传感器组件。 互连用于保持电缆的拉伸强度。 光纤和/或电线连接到传感器装置进行操作。 然后将互连/传感器组件和相关联的光纤和电线封闭在封装在外保护套上的二模中。

    Solid marine seismic cable
    460.
    发明授权
    Solid marine seismic cable 有权
    固体海洋地震电缆

    公开(公告)号:US6128251A

    公开(公告)日:2000-10-03

    申请号:US418883

    申请日:1999-10-15

    CPC classification number: G01V1/201 G01V1/3808 G10K11/008

    Abstract: An arcuate or flat ferroelectric sensor is incorporated in a seismic streamer. The structure comprises an interior cable, a surrounding woven strength member, an overlying foam floatation layer, and an enclosing jacket. One or more elongate channels are formed in the overlying floatation layer, and one or more hydrophones are mounted in the channel(s). The elongate channel enlarges the acoustic aperture for the reception of seismic signals.

    Abstract translation: 弧形或扁平铁电传感器被并入地震拖缆中。 该结构包括内部电缆,周围的编织强度构件,上覆泡沫漂浮层和封闭护套。 一个或多个细长通道形成在上浮浮层中,并且一个或多个水听器安装在通道中。 细长通道扩大了用于接收地震信号的声孔。

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