SLWR创新的设计方法支持概念工程到项目成本优化

E. Diakonova, G. Bonnet, Y. Brouard
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引用次数: 0

摘要

钢制懒波立管是深水工程中最高效、最灵活的立管系统之一。从设计的角度来看,设计人员必须处理一些参数,如配置本身、与FPSO的交互、环境负载、安装船的能力以及安装和采购成本等商业问题。本文介绍了如何评估对钢制懒波立管(与传统钢制悬链线立管相反)的需求,以及如何通过现代技术计算使用基于优化效率的创新方法来开发最先进的设计。优化的目标是提出一种立管配置,可以在所有参数之间进行最佳折衷,同时保持适合用途和成本效益。开发了一种方法,使用Python脚本作为Orcaflex软件和用户定义参数之间的接口,以最好地尊重项目特定的加权标准。它还将强调如何将该方法应用于快速通道概念研究,使最终用户能够在油田开发开始时考虑优化设计。将考虑所有的限制和目标,并提出可能的挑战和解决方案。懒波立管的最终设计是所有约束之间的折衷。本文提供了有关钢懒波立管设计的所有阶段的全面信息,从最初的草案配置到最优化和最具成本效益的配置。由于这一过程实现的一些优化可能性将通过示例进行开发和说明。这个概念可以应用于早期工程阶段或项目过程中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
SLWR Innovative Design Methodology Supporting Concept Engineering Through to Project Cost Optimisation
Steel Lazy Wave Risers are one of the most efficient and compliant riser systems for deep-water projects. From a design perspective, designers have to deal with parameters such as the configuration itself, interaction with the FPSO, environmental loads, installation vessel capabilities and commercial issues like installation and procurement costs. This paper presents how to assess the need for Steel Lazy Wave Risers (as opposed to conventional Steel Catenary Risers) and how to develop a state of the art design by using an innovative methodology based on the efficiency of an optimisation through modern technology computation. The objective of the optimisation is to propose a riser configuration that allows the best compromise between all parameters, while remaining fit for purpose and cost-efficient. A methodology was developed using a Python script as an interface between Orcaflex software and the user-defined parameters to best respect the project specific weighted criteria. It will also highlight how the methodology can be applied for fast track conceptual studies, enabling the end user to account for optimised design at the start-up of a field development. All the constraints and objectives will be considered with possible challenges and solutions to be presented. The final design of a lazy waver riser is a compromise between all constraints. This paper provides comprehensive information relative to all the stages of steel lazy wave riser design, from the initial draft configuration to the most optimised and cost-efficient one. A few optimisation possibilities achieved thanks to this process will be developed and illustrated through examples. The concept can be applied to early stage engineering or during the course of a project.
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