Marine seismic surveying in icy or obstructed waters
    1.
    发明授权
    Marine seismic surveying in icy or obstructed waters 有权
    在冰冷或阻塞的海域进行海洋地震勘测

    公开(公告)号:US08593905B2

    公开(公告)日:2013-11-26

    申请号:US12719783

    申请日:2010-03-08

    摘要: A skeg mounts from the stern of a towing vessel and extends below the waterline. A channel in the skeg protects cables for steamers and a source of a seismic system deployed from the vessel. Tow points on the skeg lie below the water's surface and connect to towlines to support the steamers and source. A floatation device supports the source and tows below the water's surface to avoid ice floes. The streamers can have vehicles deployed thereon for controlling a position on the streamer. To facilitate locating the streamers, these vehicles on the streamers can be brought to the surface when clear of ice floes so that GPS readings can be obtained and communicated to a control system. After obtaining readings, the vehicles can be floated back under the surface. Deploying, using, and retrieving the system accounts for ice at the surface in icy regions. In addition, handling the seismic record can account for noise generated by ice impact events.

    摘要翻译: 一根skeg从拖船的船尾安装,并延伸到水线以下。 skeg中的通道可以保护用于蒸笼的电缆和从容器部署的地震系统的源。 skeg上的牵引点位于水面以下,并连接到拖车以支撑蒸笼和水源。 漂浮装置支撑水面下面的水源和水道,以避免浮冰。 拖缆可以在其上部署车辆以控制拖缆上的位置。 为了便于定位拖缆,拖缆上的这些车辆可以在没有浮冰的情况下被带到地面上,从而可以获得GPS读数并传送给控制系统。 获得读数后,车辆可以浮在表面下方。 在冰冷地区的表面部署,使用和检索系统帐户。 此外,处理地震记录可以解决冰影响事件产生的噪音。

    Arctic Seismic Surveying Operations
    2.
    发明申请
    Arctic Seismic Surveying Operations 有权
    北极地震测量作业

    公开(公告)号:US20140269174A1

    公开(公告)日:2014-09-18

    申请号:US14216935

    申请日:2014-03-17

    IPC分类号: G01V1/38

    CPC分类号: G01V1/3808 G01V1/38

    摘要: A marine seismic survey is performed in icy waters by initially planning a survey track traversing a survey area. The initial track is planned based on initial ice conditions in the survey area having the icy waters. After preparing the system, a seismic system is deployed into the water from a survey vessel at the survey area. This is typically done in an area relatively free of ice. At least one escort vessel escorts the survey vessel as it traverses the survey track and obtains seismic data. The survey vessel tows the seismic system under the surface of the icy water to avoid the ice. All the while, systems and operators monitor the survey area along the survey track for actual ice conditions. In this way, the escort vessel can handling the actual ice conditions along the survey track so the survey vessel does not need to halt.

    摘要翻译: 在冰冷的水域进行海洋地震勘测,最初计划通过勘测区域的勘测轨迹。 初步的轨迹是根据具有冰冷水域的勘测区域的初始冰条件计划的。 在制定系统后,将一个地震系统从调查区域的一个测量船部署到水中。 这通常在相对没有冰的区域中完成。 至少有一艘护送船在穿过勘测轨道时护送测量船,并获得地震数据。 调查船拖着冰水表面的地震系统,以避免冰块。 所有的时间,系统和操作员都在实际的冰条件下沿着勘测轨道监测勘测区域。 以这种方式,护送船可以处理沿着勘测轨道的实际冰面状况,因此不需要停止测量船。

    MARINE SEISMIC SURVEYING IN ICY OR OBSTRUCTED WATERS
    3.
    发明申请
    MARINE SEISMIC SURVEYING IN ICY OR OBSTRUCTED WATERS 有权
    海洋地震调查在水或阻塞水中

    公开(公告)号:US20100226204A1

    公开(公告)日:2010-09-09

    申请号:US12719783

    申请日:2010-03-08

    IPC分类号: G01V1/38

    摘要: A skeg mounts from the stern of a towing vessel and extends below the waterline. A channel in the skeg protects cables for steamers and a source of a seismic system deployed from the vessel. Tow points on the skeg lie below the water's surface and connect to towlines to support the steamers and source. A floatation device supports the source and tows below the water's surface to avoid ice floes. The streamers can have vehicles deployed thereon for controlling a position on the streamer. To facilitate locating the streamers, these vehicles on the streamers can be brought to the surface when clear of ice floes so that GPS readings can be obtained and communicated to a control system. After obtaining readings, the vehicles can be floated back under the surface. Deploying, using, and retrieving the system accounts for ice at the surface in icy regions. In addition, handling the seismic record can account for noise generated by ice impact events.

    摘要翻译: 一根skeg从拖船的船尾安装,并延伸到水线以下。 skeg中的通道可以保护用于蒸笼的电缆和从容器部署的地震系统的源。 skeg上的牵引点位于水面以下,并连接到拖车以支撑蒸笼和水源。 漂浮装置支撑水面下面的水源和水道,以避免浮冰。 拖缆可以在其上部署车辆以控制拖缆上的位置。 为了便于定位拖缆,拖缆上的这些车辆可以在没有浮冰的情况下被带到地面上,从而可以获得GPS读数并传送给控制系统。 获得读数后,车辆可以浮在表面下方。 在冰冷地区的表面部署,使用和检索系统帐户。 此外,处理地震记录可以解决冰影响事件产生的噪音。

    Gps-based underwater cable positioning system
    4.
    发明申请
    Gps-based underwater cable positioning system 有权
    基于GPS的水下电缆定位系统

    公开(公告)号:US20050180263A1

    公开(公告)日:2005-08-18

    申请号:US10509703

    申请日:2003-05-22

    摘要: A GPS-based underwater cable positioning system for use in determining the shape and position of hydrophone streamers towed underwater behind survey vessels involved in marine seismic prospecting. The system includes a plurality of surface units towed behind the vessel. Each surface unit includes a GPS receiver to receive radio frequency GPS signals and to determine its positions. Each surface unit also has an acoustic transmitter to transmit an acoustic message signal representing its position and an optional time stamp into the water. Acoustic receiver units, attached spaced apart locations along one or more streamer cables, each include an acoustic receiver to receive the acoustic message signals from the surface units and to determine its position from the message signals. To augment the message signals from the surface units at locations distant from the surface units, acoustic transceiver units may be used. The acoustic transceiver units are attached to the streamer cables at ranges between the surface units and distant acoustic receiver units. The acoustic transceiver units each include an acoustic receiver that performs as the receivers in the acoustic receiver units and an acoustic transmitter to transmit acoustic message signals representing its position and an optional time stamp into the water to be received by the acoustic receiver units. In this way, the positions and shapes of towed streamer cables can be determined.

    摘要翻译: 一种基于GPS的水下电缆定位系统,用于确定在涉及海洋地震勘探的测量船舶后方水下拖缆拖缆的形状和位置。 该系统包括拖在容器后面的多个表面单元。 每个表面单元包括接收射频GPS信号并确定其位置的GPS接收器。 每个表面单元还具有声发射器,以将表示其位置的声学信号信号和可选的时间戳传输到水中。 声学接收器单元,沿着一个或多个拖缆电缆连接的间隔开的位置,每个包括声接收器,用于接收来自表面单元的声学信号信号,并从消息信号确定其位置。 为了从远离地面单元的位置处的表面单元增加消息信号,可以使用声收发器单元。 声学收发器单元在表面单元和远程声学接收器单元之间的范围内连接到拖缆电缆。 声收发器单元各自包括作为声接收器单元中的接收器执行的声接收器,以及声发射器,用于将表示其位置的声消息信号和可选时间戳发送到要由声接收器单元接收的水中。 以这种方式,可以确定拖缆拖缆的位置和形状。