ThorougH experiMental and numerical investigation of Coupled processes for geologiC Carbon Storage

地质碳储存耦合过程的彻底实验和数值研究

• 批准号: EP/X026019/1
• 负责人: Samuel Krevor
• 金额: $ 26万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FX026019%2F1
• 关键词: ThorougH; experiMental; numerical; investigation; Coupled

Geologic carbon storage at the gigatonne scale is deemed a feasible and effective solution to mitigate climate change and reach the Paris Agreement goal of limiting global warming to well below 2C. The injected CO2 dissolves into the resident brine, increasing its acidity and promoting chemical reactions of rock that may cause irreversible changes in the rock structure. Assessing these changes is essential to constrain achievable ranges of storage capacity and injectivity and the geomechanical response of the subsurface. THMC4CCS aims at substantially improving the knowledge of CO2-rock-brine interactions and their impact on short- and long-term response of the subsurface to CO2 injection. To do so, it follows a coherent experimental-modeling workflow and establishes a complementary synergy between the experienced researcher (ER) and the supervisor, with expertise in geomechanics and reactive flow in rock, respectively. Laboratory tests target rock types of different carbonate content to arrive at a general understanding and constitutive formulation of coupled chemical-mechanical processes. The resulting model will be implemented in an open-access numerical code, validated by reproducing the laboratory test results, and employed to simulate megatonne-scale CO2 injection. Employing cutting-edge laboratory techniques to assess coupled processes and their direct incorporation into field-scale simulations make this interdisciplinary project unique. The successful development of THMC4CCS will pave the way for optimized geologic carbon storage. An extensive training plan on both scientific and transferable skills is envisioned to not only attain the research goals but also convert the fellow into a leading independent researcher. The proposed application is in line with the EU's overriding concerns on climate change and developing sustainable energy systems. The project has great outreach potential and directly contributes to the European research output, social life, and economy.

Gigatonne量表的地质碳存储被认为是一种可行有效的解决方案，可以减轻气候变化，并达到巴黎协定的目标，即将全球变暖限制在2C以下。注射的二氧化碳溶于驻盐水中，增加了其酸度并促进岩石的化学反应，这可能会导致岩石结构的不可逆转变化。评估这些变化对于约束可实现的存储容量和注射率以及地下的地质力学响应至关重要。 THMC4CC的目的是实质上改善对CO2岩石相互作用的知识及其对地下对CO2注入的短期和长期反应的影响。为此，它遵循连贯的实验模型工作流程，并在经验丰富的研究人员（ER）与主管之间建立了互补的协同作用，分别在岩石中具有地质力学和反应性流动方面的专业知识。实验室测试针对不同碳酸盐含量的岩石类型，以对耦合化学机械过程的一般理解和构造制定。所得模型将以开放式数值代码实现，并通过重现实验室测试结果验证，并用于模拟Megatonne-Scale-Scale CO2注入。采用尖端的实验室技术来评估耦合过程及其直接纳入现场尺度模拟，使该跨学科项目变得独一无二。 THMC4CC的成功开发将为优化地质碳存储铺平道路。设想对科学和可转移技能的广泛培训计划，不仅可以实现研究目标，还可以将同伴转变为领先的独立研究人员。拟议的应用符合欧盟对气候变化和发展可持续能源系统的重大关注。该项目具有巨大的外展潜力，并直接为欧洲的研究成果，社会生活和经济做出了贡献。