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
Using the hypergeometric model to analyze the buckling of drillstrings in curved boreholes
Foamed cement job successful in deep HTHP offshore well
Deepwater gas development off Egypt overcomes challenges
Study on the Drilling Formation Selection and Risk Analysis of the Directional Drilling
Underground machines and equipment of Belorussian automotive works
Driving a large tunnel in difficult ground at Engelberg
Theoretische Untersuchungen für die Optimierung von Verschraubungen an Ölfeldrohren
Großbritannien bekommt einen Hochgeschwindigkeits-Bahnanschluß zum Kanaltunnel
Highlighting Scandinavian tunnelling