SONAR SURVEYING OF CAVERNS AND 3D MODELLING OF ENTIRE CAVERN FIELDS

The echometric surveillance of caverns is especially important with regards to their safe andeffective operation. As opposed to brine production caverns, storage caverns are generally subject onlyto convergence and they do not undergo large and irregular changes of shape under normal conditions.Echometric surveillance is therefore primarily employed to obtain proof of the cavern stability and convergence.Applying the state-of-the-art sonar technology it is possible during an echometric survey tomeasure and process the geometry of relevant parameters such as speed of sound, pressure and temperaturewith a single tool run. Today, specialized software allows us to present all the cavern.