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  • 时时彩走势图开奖视频:Seep Explorer: Global Offshore Seeps Database

    Offshore seepage detection and interpretation

    Enhance offshore exploration activities with the industry's leading offshore seepage detection and interpretation services.

    • Unrivalled oil seepage interpretation expertise
    • Valuable first indication source presence
    • Proven effectiveness in both established and frontier basins
    • Low cost and non-invasive

    后一万能码 2期内中 www.qgqx.net We utilize Synthetic Aperture Radar (SAR) images to detect naturally occurring oil seepage in deep and ultra-deep waters, and in untested offshore frontier basins. This technique led to the development of our Global Offshore Seeps Database (GOSD) and its incorporation into Seep Explorer, which has rapidly become the industry standard with support from the majority of the world’s oil companies.

    The early detection of active oil and gas seeps in frontier or under-explored basins can greatly reduce exploration risk by establishing both the presence of a mature source and, by inference, the existence of oil and gas accumulations (from which the seeps originate).

    seeps_coverage_map_550x400 content imageOur SAR seepage detection technique maps slicks on the ocean surface, which are then interpreted and categorised into a number of confidence categories. The interpreted oil slicks form the basis of the Global Offshore Seepage Database (GOSD), which is instantly available for 90% of the world’s offshore basins.

    We have been developing the database since 1992 through combined experience that is unrivalled in this field. The principal benefits of satellite SAR are that it provides low cost, multi-pass, non-interventionist global coverage, and therefore provides valuable indication on source presence ahead of any exploration commitment.

    The science behind our seeps

    SAR seepage detection is reliant on oil accumulations moving along migration pathways to the seafloor, where it will form either liquid oil bubbles or a film on gas bubbles. These bubbles transport the oil to the sea surface where they burst and leave behind a thin oil film ‘pancake’. Over time these pancakes coalesce and form slicks.

    Detection of slicks from SAR relies on the damping properties of oil on the capillary waves (mm to cm wavelength range) that populate the sea surface at low to moderate wind speeds. It is therefore imperative that only scenes fulfilling these criteria are used in the process.

    Areas of the sea surface where waves have been suppressed by oil (or organic material) do not return radar energy to the satellite (backscatter reduction), and these areas appear black or dark on the processed imagery.

    The characteristics of the slicks and their repetition over time allow us to classify their origin. Interpretation of imagery and the categorization of the slicks requires a high level of experience in this domain, of which ours in unparalleled.

    Data is collected using several different SAR satellites: ERS-1 & -2, Envisat, Sentinel-1, ALOS, RADARSAT-1 & -2, TerraSAR-X and COSMO-SkyMed. SAR observes the ocean surface day and night and is largely unaffected by all but the densest clouds.

    Seep Explorer was recently launched following the acquisition of GLOGOS (Global Onshore Gas-Oil Seeps data set), from Gas Consult and the combination of CGG’s existing seepage data from NPA’s GOSD (Global Offshore Seepage Database), Robertson’s Frogi seeps layer and NPA’s recently created FFD (Fluid Features Database) of fluid escape features.

    Training

    We offer a comprehensive seep detection workshop and bespoke training for offshore SAR interpretation.

    The seepage detection workshop provides a comprehensive overview of the science and technology underpinning the detection and mapping of surface oil slicks and its application to oil exploration. 

    This workshop aims to satisfy four key objectives:

    • To provide participants with an understanding of the merits (and limitations) of various remote sensing technologies (not the details of image processing etc.)
    • To provide participants with an understanding of the methodology used, e.g. in the selection and assessment of the commercial remote sensing data-sets (primarily SAR).
    • To provide participants with an understanding of the interpretation of the output data and their integration with other geological, geophysical and geothermic data-sets.
    • To provide hands-on interactive training in the above via exercises and quizzes, linked to periods where open discussion and argument will be encouraged.
    GeoConsulting - Satellite Mapping

    Satellite Mapping

    A world-leading supplier of satellite images, multi-client products and bespoke mapping services.

    GeoConsulting - Ice Monitoring

    Ice Monitoring

    All-weather satellite monitoring of ice extents and concentration within a few hours of image acquisition.

    GeoConsulting - Shallow Water Bathymetry

    Shallow Water Bathymetry

    Rapid depth assessment of shallow and clear coastal waters from multispectral satellite imagery.
  • 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