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    SYSTEM AND METHOD OF MARINE GEOPHYSICAL SURVEYS WITH DISTRIBUTED SEISMIC SOURCES
    2.
    发明公开
    SYSTEM AND METHOD OF MARINE GEOPHYSICAL SURVEYS WITH DISTRIBUTED SEISMIC SOURCES 审中-公开

    公开(公告)号：EP3403119A1

    公开(公告)日：2018-11-21

    申请号：EP17700237.5

    申请日：2017-01-10

    申请人： PGS Geophysical AS

    发明人： TONNESSEN, Rune ,  OSCARSSON, Mattias D. C.

    IPC分类号： G01V1/38

    CPC分类号： G01V1/3808 ,  G01V1/04 ,  G01V1/3861

    摘要： Marine geophysical surveys with distributed seismic sources. At least some of the example embodiments are methods including performing a marine geophysical survey by: towing a plurality of high-frequency sources spread along a width of an array of sensors, the high-frequency sources having a first source density with respect to the width; and towing a plurality of mid-frequency sources spread along the width, the mid-frequency sources have a second source density with respect to the width, the second source density lower than the first source density; and towing a low-frequency source along the width; activating the high-frequency, mid-frequency, and low-frequency sources.

    MONITORING SYSTEM, COMPONENTS, METHODS, AND APPLICATIONS
    3.
    发明授权
    MONITORING SYSTEM, COMPONENTS, METHODS, AND APPLICATIONS 有权

    公开(公告)号：EP3022113B1

    公开(公告)日：2018-11-21

    申请号：EP14826259.5

    申请日：2014-07-18

    申请人： Fairfield Industries Incorporated

    发明人： HOPEWELL, William ,  THOMPSON, James N. ,  BASNIGHT, Matthew ,  MORRIS, Michael

    IPC分类号： G01V1/38 ,  B63C7/26 ,  B63C11/48 ,  B63B51/00

    CPC分类号： G01V1/38 ,  B63B51/00 ,  B63B2211/02 ,  B63C7/26 ,  B63C11/48 ,  G01V1/3808

    摘要： A real-time, marine acoustic monitoring system and method for detecting, tracking, recording, analyzing, communicating and otherwise obtaining and manipulating data indicative of marine presence and/or activity, and using such data to avoid or mitigate detrimental impact on the marine environment. The system includes sub-sea instrumentation packages (SPs) including sensors recording acoustic signals and other sensor data that allow elapsed and/or real-time, in-situ data communications and control of the individual instrumentation packages and system configuration. Each SP may have wireless, acoustic, and/or optical modules or components to enable the communication between SPs and/or other collection points such as surface vessels, ROVs, sub-sea transceivers, or AUVs. The SPs may further include additional single or multi-component seismic or other functionalized sensors for collecting data that may be used in combination with acquired acoustic data (which may relate to environmental conditions as described below as well as to marine mammal acoustic data) to assist in the identification, localization, and/or changes in the characteristics and/or population(s) of mammals in the sensed environment or other stimuli such as, but not limited to, radiation, movement, and any other detectable stimuli of real or potential interest.

    TRAVELING OCEAN BOTTOM SEISMIC SURVEY
    7.
    发明公开
    TRAVELING OCEAN BOTTOM SEISMIC SURVEY 审中-公开

    公开(公告)号：EP3338114A1

    公开(公告)日：2018-06-27

    申请号：EP16774798.9

    申请日：2016-09-22

    申请人： ION Geophysical Corporation ,  Watts, Giles Frances Tanfield ,  Stewart, Peter Graham

    发明人： WATTS, Giles Frances Tanfield ,  STEWART, Peter Graham

    IPC分类号： G01V1/38

    CPC分类号： G01V1/3808 ,  G01V1/3852 ,  G01V2210/1427

    摘要： Embodiments of a method and system for acquiring a marine seismic survey are described. One method may include depositing on a seafloor a line of cable sections extending in a first direction. The line of cable sections may have a first end and a second end and may include a plurality of seismic wavefield receivers. The method may also include moving the line of cable sections by collecting cable sections from the second end of the line and depositing cable sections at the first end of the line so that the line of cable sections travels in the first direction. At least one source vessel may be used to provide acoustical waveforms while the line of cable sections is moving. The acoustical waveforms may be received by the plurality of seismic wavefield receivers in the line of cable sections so as to enable generation of a seismic survey.

    CUTTER DEVICE FOR MARINE SURVEY SYSTEM AND RELATED METHOD
    8.
    发明授权
    CUTTER DEVICE FOR MARINE SURVEY SYSTEM AND RELATED METHOD 有权

    公开(公告)号：EP2988989B1

    公开(公告)日：2018-05-30

    申请号：EP14722607.0

    申请日：2014-04-23

    申请人： SERCEL

    发明人： LARSEN, Raymond

    IPC分类号： B63B21/66

    CPC分类号： B63B21/66 ,  G01V1/3808

    摘要： Device, system and method for protecting towed marine survey equipment from line entanglement are provided. A cutter device has a mounting mechanism configured to fixedly attach at a predetermined position along a cable used for towing, and one or more cutting structures. The cutting structures are attached to and extend away from the mounting mechanism, being configured to cut lines that get caught by the cutting structures or slide along the cable to the predetermined position.