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首页> 外文会议>IEEE/OES Acoustics in Underwater Geosciences Symposium >Adding value to acoustic data sets in the offshore oil and gas industry by innovative processing and data integration techniques
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Adding value to acoustic data sets in the offshore oil and gas industry by innovative processing and data integration techniques

机译：通过创新的处理和数据集成技术，为海上石油和天然气行业的声学数据集增加价值

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Among the acoustic methods used in ocean and marine geography investigations, the multibeam echo sounder was the product most affected by technological developments in the recent decades. With computers increasing their capabilities of processing, and new complex beam forming algorithms the acoustic signals returned now have excellent ranges and spatial resolutions. The possibility to digitally process these acoustic signals have allowed several other innovations such as the integration of various research methodologies into a single product and expanded the marine environment research possibilities by using the same mechanical and electronic sensor construction. The signals collected by multibeam echo sounders now allow identifying the facies analysis of the seabed, oceanographic features in the water column and even improvements in the sub-bottom profiler's performance. The hydrographic survey vessel FSSV Fugro Brasilis, provides a great case study of these echo sounders capabilities. With modern sensors, mounted in a "gondola", 1 meter below the keel, away from the turbulence, aeration and laminar flow, minimizing noise and allowing the processing of low intensity return signals, this vessel exemplifies the installation of a complete system for technological hydrographic surveys down to 7.000m. The arrangement includes two multibeam echo sounders, a Kongsberg EM2040 for shallow water and an EM302 for deep waters, and also a sub-bottom profiler SBP300 sharing the multibeam reception transducers in order to observe the seabed sediment layers with maximum contrast and reflectivity. Part of the development and results evolution obtained passes through the data processing techniques applied to digital signals, which in this case use the processing software Fugro Starfix and Caris. Commercial programs like Caris HIPS & SIPS, make a more pragmatic approach. Naturally, they are in constant contact with the manufacturers from the most commercial relevant equipment and s- ay up to date in the digital signal processing techniques. Due to this monitoring of the new technologies, Caris HIPS & SIPS are the most suitable software for processing the water column and backscatter data. With the advance of technology, the number of products increases, not only restricted to the accurate achievement of bathymetry, but also enabling the integration of different techniques in order to provide more information in a single product. One of the ways found to increase the investigations quality at sea is processing of the water column data integrated with the bathymetry. This technique enables the research of outline structures in the ocean environment, such as hot springs and gas exudation. The combination of these bathymetric, facies analysis and seabed characterization information through the backscatter and high acoustic contrast aquatic structures allows a presentation of integrated and complete results. With these new technological developments, understanding of oceanic processes is more detailed, supporting academic research and engineering works.
机译：在海洋和海洋地理调查中使用的声学方法中，多波束回声测深仪是近几十年来受技术发展影响最大的产品。随着计算机处理能力的提高和新的复杂波束形成算法的发展，现在返回的声音信号具有出色的范围和空间分辨率。数字化处理这些声信号的可能性允许进行其他多项创新，例如将各种研究方法集成到单个产品中，并通过使用相同的机械和电子传感器构造扩展了海洋环境研究的可能性。现在，由多束回波测深仪收集的信号可以识别海床的相分析，水柱中的海洋学特征，甚至可以改善下底剖面仪的性能。水文测量船FSSV Fugro Brasilis提供了这些回声测深仪功能的绝佳案例研究。该船采用现代传感器，安装在龙骨下方1米处的“吊篮”中，远离湍流，曝气和层流，将噪音降至最低，并允许处理低强度返回信号，该船为技术安装了完整的系统水文勘测低至7.0m。该装置包括两个多波束回声测深仪，一个用于浅水的Kongsberg EM2040和一个用于深水的EM302，以及一个与多波束接收换能器共享的子底剖面仪SBP300，以便以最大的对比度和反射率观察海床沉积物层。获得的部分开发成果和结果演变是通过应用于数字信号的数据处理技术进行的，在这种情况下，该技术使用处理软件Fugro Starfix和Caris。 Caris HIPS＆SIPS等商业程序采用了更为实用的方法。当然，他们会与最商用的相关设备不断与制造商保持联系，并始终保持数字信号处理技术的最新发展。由于对新技术的这种监视，Caris HIPS＆SIPS是最适合处理水柱和反向散射数据的软件。随着技术的进步，产品的数量增加，不仅限于测深仪的准确实现，而且还使不同技术的集成成为可能，以便在单个产品中提供更多信息。提高海上调查质量的方法之一是处理与测深仪集成的水柱数据。这项技术可以研究海洋环境中的轮廓结构，例如温泉和气体渗出。通过后向散射和高声学对比水生结构，这些测深，相分析和海床特征信息相结合，可以呈现完整而完整的结果。随着这些新技术的发展，对海洋过程的了解更加详尽，为学术研究和工程工作提供了支持。

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