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首页> 外文会议>Proceedings of the ASME India oil and gas pipeline conference 2015 >DEEPWATER PIPELINE CHALLENGES
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DEEPWATER PIPELINE CHALLENGES

机译：深度管道挑战

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With the ever-increasing demand of energy in the country, the Indian exploration and production is now compelled to move into deepwater frontiers. The country's energy reserve is getting exhausted with drying shallow water assets and the mainland is already overwhelmed with the pressure of sustaining the world's second largest population. Therefore, "the upstream oil and gas fraternity of the country" has to now enter "less explored" Indian deepwater block which has already started with the launch of the NELP block by the government. Although, the world has moved into deepwater long back, the Indian industry is still developing the ways and means to tackle the challenges involved in deep water. This paper presents the insights into design and installation of deepwater pipelines along with case study of Middle East to India Deepwater Pipeline (MEIDP) of M/s SAGE, which shall be laid at a maximum water depth of 3450 m. This paper broadly elucidates the challenges in designing the deepwater pipelines such as requirement of thick-walled line pipes to sustain collapse due to external over-pressure and tensile stresses generated due to installation forces, pipeline route selection and optimization, geo-hazard assessment & mitigation, design against fault line crossings/ seismic design, free span, repair systems, seabed intervention etc. It also covers the additional manufacturing & testing requirements including tighter tolerances for line pipes suitable for deepwater installations. It also highlights the deepwater installation capabilities of Pipe lay Barges for the laying of pipeline in the deepwater to ultra-deep waters along with new evolving testing and commissioning philosophies. This paper intends to bring awareness among the "oil and gas fraternity" regarding challenges involved in deep water pipelines with respect to design, installation etc.
机译：随着印度能源需求的不断增长，印度的勘探和生产现已被迫进入深水领域。该国的能源储备因枯竭的浅水资产而枯竭，而维持世界第二大人口的压力已使中国内地不堪重负。因此，“该国的上游油气兄弟会”现在必须进入“未开发”的印度深水区块，该区块已从政府启动NELP区块开始。尽管世界早已进入深水领域，但印度工业仍在开发应对深水挑战的方法和手段。本文介绍了对深水管道的设计和安装的见解，并结合了M / s SAGE的中东至印度深水管道（MEIDP）的案例研究，该管道应铺设在最大水深3450 m处。本文广泛阐明了深水管道设计中的挑战，例如要求厚壁管道承受因外部超压和安装力而产生的张应力所导致的坍塌，管道路线的选择和优化，地质灾害评估与缓解，针对断层线穿越/地震设计，自由跨度，维修系统，海床干预等的设计。它还涵盖了额外的制造和测试要求，包括适用于深水安装的管线的更严格的公差。它还强调了管道铺设驳船在深水至超深水域铺设管道的深水安装能力，以及不断发展的新的测试和调试理念。本文旨在使“油气兄弟会”提高人们对深水管道在设计，安装等方面所面临挑战的认识。

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