Geomechanical and acoustic characterisation of Gassum Formation Sandstones from Stenlille, Denmark

This report presents the results of a laboratory study conducted by the British Geological Survey (BGS) to characterise the geomechanical and acoustic properties of Gassum Formation sandstone from the Stenlille site, Denmark. The testing was conducted in the Rock Mechanics and Physics Laboratory at BGS, Keyworth, UK, using a servo-controlled triaxial rock testing system. The experimental programme consisted of 15 drained triaxial compression tests on five sandstone types from the Stenlille-5, Stenlille-6, Stenlille-13 and Stenlille-14 wells. The testing provided measurements of strength, static and dynamic elastic properties, and acoustic velocities, together with Mohr-Coulomb failure parameters for the tested sandstone types.