离岸人员
挪威奥斯陆DNV发布了混合热塑性复合材料软管 (TCP) 的最新标准。
这解决了深水中传统立管的问题，例如高顶部张力和腐蚀性环境。
TCP 是作为钢立管的替代品而开发的，据说为液体和气体的运输提供了一种轻质、延展性、可缠绕且无腐蚀的选择。
DNV-ST-F207 标准的主要目标是支持将碳纤维装甲等技术集成到灵活的立管设计中。
DNV 补充说，验证这些技术并确保它们符合 API Spec 17J 和 DNV-ST-F119 等公认的国际标准，应该会带来更安全、更高效的深水开发。
新标准将不同的设计方法（工作应力设计以及载荷和阻力系数设计，或部分安全系数）结合成一个统一的方法。根据该标准，部件的制造应能够承受不同类型的应力，并进行广泛的测试以确保它们在特定条件下满足安全标准。
DNV 补充说，通过在深水项目中采用碳纤维装甲元件，立管应该变得更轻，从而降低顶部张力。 此外，碳纤维在恶劣环境中表现出优异的抗降解性。
2024年9月5日
Offshore staff
OSLO, Norway — DNV has published its latest standard for hybrid thermoplastic composite flexible pipes (TCPs).
This addresses issues with conventional risers in deep water, such as high top tension and corrosive environments.
TCPs, developed as an alternative to steel risers, are said to provide a light, ductile, spoolable and corrosion-free option for transportation of liquids and gases.
The main goal of the DNV-ST-F207 standard is to support integration of technologies such as carbon fiber armor into flexible riser designs.
Qualifying these technologies and ensuring they comply with recognized international standards, such as API Spec 17J and DNV-ST-F119, should lead to safer and more efficient deepwater developments, DNV added.
The new standard combines different design methods (working stress design and load and resistance factor design, or partial safety factor) into a unified approach. Under this standard, components should be manufactured to withstand different kinds of stresses, with extensive tests applied to ensure they meet safety standards under specific conditions.
By incorporating carbon fiber armor elements for deepwater projects, DNV added, risers should become lighter, resulting in lower top tension. Also, carbon fiber exhibits superior resistance to degradation in aggressive environments.
05.09.2024
