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  • 河北快三走势图一定:BroadSource

    A synchronized multi-level broadband source

    后一万能码 2期内中 www.qgqx.net BroadSourceTM extends the spectrum to the ultra-high frequencies for better resolution and clearer images of the subsurface. It is a synchronized multi-level source which, combined with specially developed processing algorithms, eliminates the source ghost notch while providing the same low frequencies as our deep-towed conventional source.

    BroadSource data NWAusBroadSource deployed with slant streamers in the Browse Basin, Australia. Data courtesy of Shell.

    Broadsource provides over 6 octaves of signal in the shallow section (up to 200Hz), with ultra-high frequencies limited only by the Nyquist recording interval and the Earth's absorption.

    BroadSource is extremely flexible and is compatible with all receiver acquisition techniques. To gain the full benefit from Broadsource to deliver ghost-free broad bandwidths, Broadsource should be deployed in combination with a broadband receiver deghosting solution, and is fully compatible with ocean bottom nodes, BroadSeis, straight slant or deep flat tow combined with GWE (ghost wavefield elimination).

    Broadsource is widely commercially-available and can be deployed by all CGG vessels. It is a proven broadband source solution, CGG has acquired over 75,000 sq km of 3D data with Broadsource, in combination with various broadband receiver deghosting solutions.

    BroadSource cartoon

    Benefits:

    • All the advantages of a conventional source:
      • reliable, adjustable and repeatable
      • deployable as a flip-flop dual array
    • High-resolution, broad-bandwidth ghost-free seismic data (2.5Hz to anti-alias filter)
    • Better resolution and clearer images of the subsurface
    • Reinforces improved BroadSeis layer differentiation
    • Enhanced shallow resolution, suitable for site surveys

    Ghost-free broadband data

    BroadSource uses air guns at different levels to defocus the source ghost, so that it can be removed by designature. The firing of the guns is synchronized so that the deeper gun fires as the down-going energy from the shallower gun reaches it, creating a consolidated, focussed, down-going wavefront. The up-going energy is unsynchronized and therefore delivers unfocussed ghost wavefronts, enabling attenuation of the ghosts by designature. This designature process requires the use of an accurate far-field signature, which we derive from recorded near-field hydrophone measurements by Full Source Characterization (FSC).

    We believe that the best broadband solution in the marketplace today is the combined offer of BroadSource and BroadSeis for most geological and operational contexts. However, CGG can provide BroadSource as a standalone solution in combination with any receiver acquisition technique, based on customer preferences and the specifics of the geology and operational environment.

    Synchronized multi-level source and Variable-...

    Ronan Sablon | Thierry Payen | Danny Hardouin | Damien Russi...
    ?2013 EAGE

    Monitoring of air-gun source signature direct...

    Cheikh Niang | Yuan Ni | Julie Svay
    ?2013 SEG

    Synchronized multi-level source, a robust bro...

    Risto Siliqi | Thierry Payen | Ronan Sablon
    ?2013 SEG
    Offshore - GeoHazards

    Solutions for Geohazards

    Clear, high-resolution near-surface images to delineate the smallest structures. Over 6 octaves of data from BroadSource for shallow hazard identification.
    Offshore - Tailored Acquisition Solutions

    Tailored Acquisition Solutions

    Acquisition tailored to your geological challenges, time or budgetary constraints. Innovative spread designs and imaging solutions for complex geologies or time-limited or difficult access.
    Multi-Client Data - North Viking Graben

    Northern Viking Graben

    A huge integrated geoscience program covering over 35,000km2 of the Northern Viking Graben. BroadSeis-BroadSource ghost-free data with reservoir-oriented QC.
    Offshore - BroadSource & BroadSeis

    BroadSource & BroadSeis

    Get the widest bandwidth and highest frequencies from ghost-free wavelets without compromising low frequencies. Available in flip-flop mode across the fleet.
    Multi-Client Data - Davros

    Davros

    New survey located in the Northern Carnarvon Basin, combining BroadSeisTM and BroadSourceTM to deliver exceptional data quality and reveal new exploration opportunities.


    Offshore - TopSeis

    TopSeis

    A next-generation marine acquisition solution for acquiring zero and near offsets to improve the imaging of shallow and intermediate targets.
    Offshore (Marine)

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    Sustainability - Marine Seismic Equipment Ecodesign Sentinel

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  • 太坏了!傅欢遇“断子绝孙腿” 这动作红牌都不冤 2019-04-17
  • 市民工地发现并机智"抢回" 4件圆明园流散文物终"回家" 2019-04-17
  • 世界杯成中国企业营销升级大战场 2019-04-15
  • 中东部地区将有强降雨 京津冀等地有轻至中度霾 2019-04-11
  • 郑永年:新时代的清醒判断 2019-04-11
  • 让协商民主优势得以充分发挥 2019-04-10
  • 网友给太原市市长留言获回复 共计11条 2019-04-09
  • 尧都区车站街建设社区老党员高德宏同志手抄“党章”庆党生 2019-04-09
  • 正心正念 爱国爱教 佛界楷模 2019-04-02
  • 防治土地荒漠化 新疆保护生态兼顾农民增收 2019-04-02
  • 许倬云作序《现代的历程》:现代人的天问 2019-03-31
  • 证监会:首发审核政策始终没有变化 2019-03-31
  • 2008年全球金融危机之后,为什么金融危机发源地的美国,欧债危机重灾区的欧洲各国股市连续7年走牛,屡创历史新高,唯经济最好的中国股市却连续7年熊冠全球?去年中国 2018-11-17
  • 完成自己的第一部电影, 她23岁就做到了 2018-11-17