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.

千兆吨规模的地质碳储存被认为是减缓气候变化和实现巴黎协定将全球变暖限制在远低于2摄氏度的目标的可行和有效的解决方案。注入的CO2溶解到驻留盐水中，增加其酸度并促进岩石的化学反应，可能导致岩石结构发生不可逆转的变化。评估这些变化对于限制可实现的储存能力和注入能力范围以及地下的地质力学响应至关重要。THMC 4CCS的目的是大大提高CO2-岩石-盐水相互作用及其对地下CO2注入的短期和长期响应的影响的知识。为此，它遵循连贯的实验建模工作流程，并在经验丰富的研究人员（ER）和主管之间建立互补的协同作用，分别具有地质力学和岩石反应流的专业知识。实验室测试针对不同碳酸盐含量的岩石类型，以获得对耦合化学-力学过程的一般理解和本构公式。由此产生的模型将在一个开放访问的数字代码中实现，通过复制实验室测试结果进行验证，并用于模拟百万吨级的二氧化碳注入。采用尖端的实验室技术来评估耦合过程，并将其直接纳入现场规模的模拟，使这个跨学科的项目独一无二。THMC 4CCS的成功开发将为优化地质碳储存铺平道路。一个广泛的培训计划，科学和可转移的技能，设想不仅实现研究目标，但也转换成一个领先的独立研究员。拟议的申请符合欧盟对气候变化和发展可持续能源系统的首要关切。该项目具有很大的推广潜力，直接有助于欧洲的研究成果，社会生活和经济。