Learnings from the Pre-ACT campaign at the Svelvik CO₂ Field Lab

The Svelvik CO₂ Field Laboratory was designed for the development and testing of methods for quantifying saturation and pressure, in particular for CO₂ monitoring applications, and is part of the European CCUS research infrastructure initiative (the ECCSEL laboratories). The site design focused on cross-well geometry to provide the best possible data quality for method development. Main installations consist of an injection well (65 m deep) surrounded by four monitoring wells (100 m deep) as well as CO₂ and water injection facilities. We describe and summarize results and observations from the CO₂ injection conducted during the Pre-ACT experimental campaign and focus on the lessons learned that may help planning future experiments at the site.