Adventuring into Athabasca with HDD

摘要

Patrick O'Donoghue, Michels Corporation, USA, explains methods of getting equipment to inaccesible sites in freezing conditions. Even under ideal circumstances, the act of accurately and safely drilling a hole from one point to another requires planning and skill. When factors like location, diameter, length and soil formation extend beyond the norm, a horizontal directional drill (HDD) project can move from a relatively routine installation to an exceptional one.