Saline Aquifer CO2 Storage phase 2 (SACS2) : a demonstration project at the Sleipner Field : work area 1 (Geology). Progress report 1 April to 31 December 2000

1.1 Summary · Preliminary depth and thickness maps produced of Utsira Sand over its entire subsurface extent. · Total Utsira reservoir storage volume estimated. · Potential storage volume in traps estimated around Sleipner. · Preliminary map of caprock around Sleipner produced. · Seismic amplitude anomalies mapped in caprock around Sleipner. · Samples of caprock obtained and preliminary analysis made. · Core from possible caprock analogue at Ekofisk examined and analysed. · 2-D basin modelling carried out to assess major controls on the regional fluid flow regime. Task 1.3 Stratigraphy and structure of the Greater Sleipner Area The reprocessed CNST82RE survey has been loaded. Interpretation of the Utsira Sand transferred onto the reprocessed data and extended onto previously unavailable seismic lines. Transferred reprocessed CNST82RE dataset to GEUS. Received additional Norwegian well information from GEUS. This completed the initial Greater Sleipner interpretation.