TBA

碳捕获与封存（CCS）被广泛认为是降低人为二氧化碳水平的一项有价值的技术。传统的碳捕集技术是将二氧化碳注入枯竭的油气储层或含盐储层，但冰岛公司Carbfix开发了一种将二氧化碳注入玄武岩储层的技术。与传统的CCS不同，在传统的CCS中，二氧化碳以超流体的形式储存，玄武岩中的储存促进了二氧化碳与周围岩石的反应，并矿化成碳酸盐矿物。这消除了二氧化碳泄漏的风险，并确保二氧化碳永久储存在固态。Carbfix自2012年以来一直在注入二氧化碳，该技术已被证明是可行的：在注入的两年内，1万吨二氧化碳被隔离并矿化。然而，Carbfix尚未量化储层的储存能力，并且需要进一步了解流体路径以确定未来的可行性。该项目旨在通过对玄武岩孔隙度和渗透率的多尺度表征，量化Carbfix的Hellisheioi玄武岩储层的储层容量和岩石物理特征。这将涉及构造地质野外测绘，井下数据分析和微观结构分析（CT扫描，SEM扫描，光学显微镜，XRD）。结果将与冰岛Hofn的地质特征进行比较，这是由Carbfix实现的矿化过程的自然模拟

Carbon Capture and Storage (CCS) is widely viewed as a valuable technique for reducing anthropogenic CO2 levels. Conventional CCS involves CO2 injection into depleted hydrocarbon reservoirs or saline reservoirs, but Icelandic company Carbfix has developed technology involving CO2 injection into basalt reservoirs. Unlike conventional CCS, where CO2 is stored as a superfluid, storage in basalt promotes CO2 to react with surrounding rock and mineralise to carbonate minerals. This eliminates the risk of CO2 leakage and ensures CO2 is permanently stored in a solid state. Carbfix has been injecting CO2 since 2012, and the technology has proved viable: with 10,000T of CO2 sequestered and mineralising within two years of injection. However, Carbfix are yet to quantify the storage capacity of the reservoir, and require further understanding of the fluid pathways present to determine future viability. This project aims to quantify the storage capacity and petrophysical characteristics of Carbfix's Hellisheioi basalt reservoir through multiscale characterisation of the basalt's porosity and permeability. This will involve structural geology field mapping, downhole data analysis and microstructural analysis (CT scanning, SEM scanning, optical microscopy, XRD). Results will be compared to the geological characteristics at Hofn, Iceland, a natural analogue for the mineralisation process implemented by Carbfix