Classic bit kinematics - 3. Pure rolling of bit cones doubles performance
Application of trenchless methods for pipelines renovation on mining areas
Somport-Tunnel: dritte Hauptverkehrader zwischen Frankreich und Spanien
North Sea operators drilling varied projects. Drilling market focus
Latest innovations in surface mining
Based on Numerical Simulation to Investigate the Process of Gas Explosion Accident in Coal Mine
Deepwater gas development off Egypt overcomes challenges
Foamed cement job successful in deep HTHP offshore well
Study on the Drilling Formation Selection and Risk Analysis of the Directional Drilling
Combined Impacts of Sand Mining Activities: The Nandu River Downstream Segment
Auffahrung einer Versuchskaverne fuer ein Wasserkraftwerk
Driving a large tunnel in difficult ground at Engelberg
50 t Minetrucks - eine leistungsfähige Alternative in der Fördertechnik
Großbritannien bekommt einen Hochgeschwindigkeits-Bahnanschluß zum Kanaltunnel