Reliability of Drag Anchors for Catenary Mooring Systems in Newfoundland Offshore

纽芬兰近海悬链线系泊系统拖曳锚的可靠性

• 批准号: 521712-2017
• 负责人: ShiriGhalehJugh, Hodjat
• 金额: $ 1.8万
• 依托单位: Memorial University of Newfoundland
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=639261
• 关键词: Reliability; Drag; Anchors; Catenary; Mooring

Recent significant petroleum discoveries have moved the Newfoundland and Labrador's offshore sector intodeepwater Arctic and harsh environment (i.e., Flemish Pass Basin, 1,100 meters depth). The development offloating production facilities has significantly increased. These floating systems are kept in place under normaland extreme environmental conditions using anchors as a key element of mooring systems. The high number ofmooring system failures involving floating facilities continues to raise concerns in the industry. Failure ofmooring and anchoring systems can impose significant costs and endanger the environment. The environmentalconsequences of such station keeping system failure can be countless and catastrophic. There are largeuncertainties in seabed parameters and environmental loads combined with the inaccessibility for monitoring,inspection, and maintenance of drag anchor in Newfoundland offshore that mandates the reliability assessmentof these elements to minimize their likelihood of failure. The proposed research project will produce aquantitative estimate of drag anchor reliability, providing greater confidence to Canadian oil and gas industry,regulator, and the public in its safe operation. In long run, it will contribute to safe and sustainable resourceextraction in the deepwater region, including offshore Newfoundland and Labrador. The proposal initiates anew research engagement between Memorial University and Technip Canada, an Engineering, Procurement,Construction and Installation (EPCI) Company specialized in offshore structures, subsea pipelines, marinerisers, subsea facilities, and offshore operations.

最近的重大石油发现使纽芬兰和拉布拉多的近海部门进入深水北极和恶劣环境（即，佛兰芒山口盆地，1，100米深）。生产设施的发展明显增加。这些浮式系统在正常和极端环境条件下使用锚作为系泊系统的关键元件保持在适当位置。大量的系泊系统故障涉及浮动设施继续引起业界的关注。系泊和锚定系统的故障会造成巨大的成本并危害环境。这种位置保持系统故障的环境后果可能是无数的和灾难性的。海底参数和环境载荷存在很大的不确定性，且纽芬兰近海的拖曳锚无法进行监测、检查和维护，因此必须对这些元件进行可靠性评估，以最大限度地降低其失效的可能性。拟议的研究项目将产生阻力锚可靠性的定量估计，提供更大的信心，加拿大石油和天然气行业，监管机构和公众在其安全运行。从长远来看，它将有助于深水地区的安全和可持续的资源开采，包括近海纽芬兰和拉布拉多。该提案启动了纪念大学和Technip Canada之间的新研究合作，Technip Canada是一家工程，采购，建筑和安装（EPCI）公司，专门从事海上结构，海底管道，marinerisers，海底设施和海上作业。