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
Deepwater gas development off Egypt overcomes challenges
Die Stahlberger Grubenbahn : auf schmaler Spur von Müsen nach Dahlbruch
Foamed cement job successful in deep HTHP offshore well
Using the hypergeometric model to analyze the buckling of drillstrings in curved boreholes
Heavy-duty quarry dump trucks, road-bulding and auxiliary transport
Study on the Drilling Formation Selection and Risk Analysis of the Directional Drilling