考虑监管要求和项目设计要点的海上风电综合地球科学方法,优化时间表,为项目、开发商和用户带来价值

Deanne Hargrave, Gene Bryant, Jack Dow Fraser, Selina Kaur, Inaki Funes Macarro, A. Rabain, Craig Scherschel, Eric Swanson
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引用次数: 0

摘要

大西洋海岸海上风能公司正在开发美国东海岸最大的海上风能项目之一。由于租赁面积大,占地741平方公里,在获得租约时,现有的地球物理、岩土、环境和海洋考古数据很少,因此需要大量的前期工作来完成项目设计和监管场地特征。收集施工作业计划所需的信息,并制定项目的详细设计参数,通常需要长达4年的时间才能完成。与后来获得的详细岩土工程信息(当项目设计要点得到更好的定义时)相比,早期为获得许可所需的地球物理信息的时间安排不一致,加剧了这种漫长的持续时间。在开发的头几年,通过创新的分阶段和地球科学工作的整合,解决了这个时间问题。协调获取地质灾害、地球物理学、海洋考古学、岩土技术和底栖生物栖息地数据,旨在覆盖项目设计范围内的项目变量范围,优化调查活动,并形成面向未来的场地特征基线。本案例研究强调了在以下领域实施的各种技术、操作和战略创新:渔业管理和同步船舶作业(SIMOPS)、调查线规划、环境和底栖规划、岩土工具和技术、分阶段地面模型开发、数据质量保证和控制、海上作业监督、数据管理和监管策略。随着项目的成熟,调查计划的细化,包括定位、排序、聚类和多用途数据采集,提供了多种效率。该团队通过仔细考虑商业捕捞强度、海洋条件、地质特征和测量线的设计或布局,实现了地球科学数据质量目标,缩短了调查时间。与多个技术包团队密切合作是必要的,以了解和预测不断变化的工程数据需求,并尽量减少重复的数据收集。这种综合方法使项目能够加速识别和解释工作,以解决岩土工程地面建模、考古古景观建模、地质历史确定和底栖生物栖息地测绘等关键问题,这是海上风电行业独特而创新的方法。前所未有地使用新的数据显示和创新的测绘工具,使来自全球项目团队的各种项目开发和工程设计专家能够轻松访问丰富的地球科学信息,而无需专业软件或广泛的培训。该方法还在海上安全领域实现了宝贵的利益,实现了关键的里程碑,并支持了大西洋海岸海上风电公司的环境管理目标,成为一个好邻居,并以科学领先。
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Offshore Wind Integrated Geoscience Approach Considering Regulatory Requirements and Project Design Essentials to Optimize Timelines Bringing Value to Project, Developer, and Consumer
Atlantic Shores Offshore Wind is developing one of the largest offshore wind energy projects along the U.S. East Coast. Given the large lease area covering 741 km2 and with minimal pre-existing geophysical, geotechnical, environmental, and marine archaeological data availability when the lease was awarded, significant front-end efforts were required to complete project design and regulatory site characterization. Collection of the information needed to progress the Construction Operations Plan and develop a project's detailed design parameters would typically take up to 4 years to finalize. This long duration is exacerbated by the misaligned timing of geophysical information needed early for permitting purposes compared to detailed geotechnical information acquired later, when project design essentials are better defined. This timing issue was managed through innovative phasing and integration of geoscience efforts in the first few years of the development. Coordinated acquisition of geohazards, geophysics, marine archaeology, geotechnics, and benthic habitat data, designed to cover the range of project variables within the project design envelope, optimized the survey campaign and resulted in a future-proof site characterization baseline. This case study highlights various technological, operational and strategic innovations implemented in the following areas: fisheries management and simultaneous vessel operations (SIMOPS), survey line planning, environmental and benthic planning, geotechnical tools and techniques, phased ground model development, data quality assurance and control, offshore operations oversight, data management and regulatory strategies. Refinement to survey plans, including orientation, sequencing, clustering, and multi-purposing data acquisition, delivered multiple efficiencies as the project matured. The team achieved geoscience data quality objectives and reduced survey durations by carefully considering commercial fishing intensity, metocean conditions, geological features, and survey line design or layout. Close coordination with multiple technical package teams was necessary to understand and anticipate evolving engineering data needs and minimize duplicate data gathering. This integrated approach enabled the project to accelerate the identification and interpretation efforts needed to answer critical questions for geotechnical ground modeling, archaeological paleolandscape modeling, geologic history determination, and benthic habitat mapping in ways that are unique and innovative to the offshore wind industry. The unprecedented use of new data displays and innovative mapping tools allowed various project development and engineering design experts from across the global project team to easily access the wealth of geoscientific information developed without the need for specialty software or extensive training. The approach also realized valuable benefits in the areas of offshore safety, achieving critical milestones, and supporting Atlantic Shores Offshore Wind goals of environmental stewardship, being a good neighbor and leading with science.
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