Boliden Renström Media hole 2021

Background to the project:
Boliden would improve its water management by building a new pumping station underground that pumps water out of the mine.

766m in 90 degrees, 0.66m diameter with a deviation of only 12cm
75m 90 degrees 0.66m diameter

Performed by rig:
Epiroc Robbins 123RH
Rhino 400