In-Situ Stress Orientation Data from the Greater Ruhr Region (Germany) Derived from Hydrofracturing Tests and Borehole Logs

Abstract

This compilation presents in-situ stress orientations derived from hydrofracturing tests and borehole logs carried out in six, now abandoned, coal mines within the greater Ruhr region in western Germany. All stress information was analysed and compiled in a standardized format and quality-ranked, using the established quality ranking schemes of the World Stress Map (WSM) project, for reliability and comparability. The compilation displays A-C quality of in-situ stress orientation data records. The database presents unique and high-quality stress input data for future reservoir and geomechanical numerical models and should aid the subsurface operations in the region. More detailed information on the WSM quality ranking scheme, guidelines for the various stress indicators, and software for stress map generation and the stress pattern analysis is available at http://www.world-stress-map.org.