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  • 国家授权正规彩票平台:Sub-Basalt Imaging

    West of Shetland

    后一万能码 2期内中 www.qgqx.net In order to achieve sufficient bandwidth in areas where high frequencies are limited, it is necessary to extend the low frequencies. Lower frequencies are affected less by attenuation, and provide greater accuracy and stability for seismic inversion.

    Conventional marine streamer acquisition lacks sufficient signal-to-noise ratio in the 2-7 Hz bandwidth due to streamer depth, streamer tow noise, source array configuration, source depth and source bubble. Using BroadSeis? we routinely record frequencies down to 2.5 Hz, providing three octaves of data below 20 Hz.

    Sub-B BroadSeis Sub-B Conventional

    Slide to compare


    sub-basalt WoSIn trials West of Shetland, BroadSeis shows superior sub-basalt imaging and penetration. In the example above, the marked reflector fades away beneath the thicker basalt towards the northwest (left) on the conventional section. Only the lower frequencies provided by BroadSeis penetrate the basalt, allowing the reflector to be traced across the entire section. There is also improved fault definition (center) on the BroadSeis data as well as significant improvement to the S/N ratio at depth.

    Zooming in around the top and base basalt (right) shows the clearer definition of this layer on the BroadSeis data. We can see the base and intra basalt layers, including probable multiple basalt flows pinching out.

    Uses of wide-azimuth and variable-depth strea...

    Fabrice Mandroux | Robert Dowle | Jo Firth | Gareth Williams
    ?2011 EAGE

    Sub-basalt Multiple and Noise Suppression Usi...

    Richard Wombell | Gareth Williams | Christopher Winter | Krz...

    Experiencing the full bandwidth of energy fro...

    Jo Firth | Idar Horstad | Menne Schakel
    ?2014 EAGE
    Offshore - Low Frequency Recording

    Ultra-Low Frequency Recording

    See below salt and basalt. Build better reservoir models. Record useful data down to 2.5 Hz with Sentinel.
    Offshore - BroadSeis Subsalt

    BroadSeis Subsalt

    The broad bandwidths with ultra-low frequencies achieved by BroadSeis are ideal for subsalt imaging without compromising high frequency shallow resolution.
    Offshore - Complex Geology Solutions

    Complex Geology Solutions

    Tailored multi-vessel acquisition solutions can deliver enhanced illumination beneath complex geologies, with improved noise and multiple attenuation.
    Offshore - Bespoke Multi-Vessel Solutions

    Bespoke Multi-Vessel Solutions

    We tailor our acquisition to meet your specific geological or operational challenge, don't settle for a one-size-fits-all survey.
    Offshore - Products and Solutions

    Offshore Products & Solutions

    Advanced technologies and innovative solutions to address your acquisition challenges - increase resolution, enhance illumination and improve efficiency.
    Offshore - People and Service

    People and Service

    Our experienced people make the difference, being knowledgeable, reliable and open, with the resources and expertise to go the extra mile.

    Offshore (Marine)

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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