At the Ketzin test site significant differences of wellhead pressures and temperature anomalies have been recorded at two observation wells after the arrival of CO2. Analysis of the measured well temperature and pressure data, and the deduced fluid density data shows that two-phase fluid conditions are prevailing in the upper 400 m of the wells. Implications on reservoir monitoring and well logging are discussed. © 2011 Published by Elsevier Ltd.
Henninges, J., Liebscher, A., Bannach, A., Brandt, W., Hurter, S., Köhler, S., & Möller, F. (2011). P-T-ρ and two-phase fluid conditions with inverted density profile in observation wells at the CO2 storage site at Ketzin (Germany). In Energy Procedia (Vol. 4, pp. 6085–6090). Elsevier Ltd. https://doi.org/10.1016/j.egypro.2011.02.614