海上井口塔设计标准化的最佳工程实践——EPC承包商的经验

K SinghSunil, R. Wasnik, H. Singh, F. Kamal, Oussama Takieddine
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引用次数: 0

摘要

Offshore公司的井口塔设施旨在接收来自不同油田的井液,并通过管道输送进行进一步处理。任何典型的井口塔的功能要求变化不大;大多数海上设施都采用了类似的设计特点。论述了海上井口塔标准化设计的最佳实践,并强调了其在EPC项目实施中的优势。在标准化设计中,对于所有新项目,井口塔的设备和管道尺寸通常是预先定义和固定的。预先定义的设计规范是根据最佳工程实践和现场经验最终确定的。例如;对于典型的石油生产平台来说,6英寸左右的井流线尺寸是足够的,并且符合大多数项目的常规线尺寸标准。同样,所有管道和设备的施工材料也可以作为所有新井口塔标准化设计的一部分进行预选。在给定的时间表内,EPC项目从详细设计阶段到调试阶段的执行对任何项目的成功都至关重要。在传统的设计方法中,即使设计已经预先确定,井口塔的各种设计活动,如工程计算、设计验证和专门的工程研究,也会在每个项目中重复进行。这是一种耗时的方法,并且花费了大量的时间而没有任何附加价值。这也延误了采购活动,导致对设施的制造、安装和调试产生连锁效应。在标准化方法中,设备/线路尺寸、布局等设计细节已经确定,EPC承包商主要需要根据供应商的设计信息/细节更新工程交付成果。这种方法大大减少了项目进度。标准化的方法为项目的快速执行提供了机会。此外,它还可以更好地管理材料,从而减少运行阶段的维护和停机时间。标准化的设计也为操作人员提供了灵活性,便于其他地点类似设施的维护和操作。NPCC最近成功实施了许多采用标准化设计方法的井口塔项目。根据从这些项目中获得的经验和教训,NPCC提出了可用于执行标准化海上井口塔设计的最佳工程实践,为所有利益相关者带来好处。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Best Engineering Practices in Standardization of Offshore Wellhead Tower Design – EPC Contractor’s Experience
The wellhead tower facilities in Offshore are designed to receive well fluid from different oil fields and transport through pipelines for further processing. The functional requirements for any typical wellhead tower do not vary much; leading to similar design features in most of the Offshore facilities. This paper discusses the best practices applied in standardization of Offshore wellhead tower’s design and highlights its advantages in execution of EPC projects. In the standardized design, the sizing of equipment and piping for a wellhead tower are normally pre-defined and fixed for all new projects. The pre-defined design specifications are finalized based on best engineering practices and field experiences. For example; the well flow line size of about 6" is found sufficient for typical oil production platforms as well as meets conventional line sizing criteria for most of the projects. Similarly, the material of construction for all piping and equipment can also be pre-selected as part of the standardized design for all new wellhead towers. The execution of an EPC project from detailed design stage to commissioning, within a given schedule is essential for success of any project. In conventional design approach, various design activities for a wellhead tower such as engineering calculations, design verification and specialized engineering studies are repeated for each project even though the design is already pre-fixed. This is a time-consuming approach and takes significant amount of time without any value addition. This also delays the procurement activities leading to cascading effect on fabrication, installation and commissioning of the facilities. In the standardized approach, design details such as equipment/line sizes, layout is already finalized and EPC contractor is mainly required to update engineering deliverables based on the vendor design information/details. This approach significantly reduces the project schedule. The standardized approach provides an opportunity for fast-track execution of the projects. In addition, it leads to better management of material resulting in reduced maintenance and shutdown period during operational phase. The standardized design also provides flexibility to the operator for easy maintenance and operation of the similar facilities at other locations. NPCC has recently successfully executed many wellhead tower projects involving standardized design approach. Based on the experience gained and the lessons learnt through these projects, NPCC proposes the best engineering practices that can be adopted for the execution of standardized offshore wellhead towers design providing benefits to all stakeholders.
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