COMPASS- Sustainable and cost-efficient Concepts enabling green power production from Supercritic Al/Superhot geothermal wells

COMPASS - 可持续且经济高效的概念，使 Supercritic Al/Superhot 地热井能够生产绿色电力

• 批准号: 10061668
• 金额: $ 57.25万
• 依托单位: TWI LIMITED
• 依托单位国家: 英国
• 项目类别: EU-Funded
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=10061668
• 关键词: COMPASS; Sustainable; cost; efficient; Concepts

The COMPASS project is inspired by global efforts to improve utilization of geothermal resources by enlarging production fields downwards. Energy output can be enhanced, without the need to expand surface infrastructure, by drilling into deep and hot formations. Calculations indicate that wells drilled into superhot conditions will yield 5-10 times more than a conventional well which can significantly reduce number of wells required. The main challenges to achieve this are related to the well integrity; due to extreme temperature changes and corrosive fluid chemistry encountered. Two of three wells in the Iceland Deep Drilling Project (IDDP) have already been drilled and had serious problems with casing failures. Numerous examples of casing failures in conventional geothermal wells show that current well concepts, mainly transferred from oil and gas applications, are barely sufficient for geothermal use. COMPASS will address these challenges by developing improved and innovative well casing technologies: -To mitigate casing failures, novel foam cement solutions will be developed suitable for high temperature formations. This system would work with available flexible couplings to mitigate high-temperature induced stresses and ensuring well integrity. - Cost-effective laser-cladding will be used to improve corrosion protection inside the casing pipes. These technology developments will be enhanced with a robust well design solution addressing challenges, reducing project risk and enabling reduction of LCOE. The new well concept will enable cost-effective geothermal developments in new types of geological settings and new regions. The COMPASS consortium contains a diverse team of major geothermal research institutes and leading industry players. This combination ensures cross-fertilisation, sharing of knowledge and experience, and seamless transfer of the novel well construction technologies by industry application, including significant citizen e

COMPASS项目的灵感来自于全球通过向下扩大生产领域来提高地热资源利用率的努力。通过钻探深层和高温地层，可以提高能源输出，而无需扩大地面基础设施。计算表明，在超热条件下钻探的井的产量将是传统井的5-10倍，这可以显着减少所需的井数量。实现这一目标的主要挑战与油井完整性有关；由于极端的温度变化和遇到腐蚀性流体化学物质。冰岛深钻项目（IDDP）中的三口井已经钻完，其中两口出现了严重的套管故障问题。传统地热井套管失效的大量例子表明，当前的井概念主要源自石油和天然气应用，不足以满足地热利用的需要。 COMPASS将通过开发改进和创新的井套管技术来应对这些挑战： -为了减少套管故障，将开发适合高温地层的新型泡沫水泥解决方案。该系统将与现有的柔性联轴器配合使用，以减轻高温引起的应力并确保油井的完整性。 - 具有成本效益的激光熔覆将用于改善套管内部的腐蚀防护。这些技术的发展将通过强大的油井设计解决方案得到加强，以应对挑战、降低项目风险并降低平准化度电成本 (LCOE)。新的井概念将在新型地质环境和新地区实现具有成本效益的地热开发。 COMPASS 联盟包含由主要地热研究机构和领先行业参与者组成的多元化团队。这种结合确保了交叉融合、知识和经验共享，以及通过行业应用（包括重要的公民电子）无缝转移新型建井技术。