Pilot Holes for Raise Bores
IDS LLC utilized the 2-7/8″ Accu-Dril® and Steering Tool to drill and remain inside a 12″ cylinder for 1312′ at Australia’s Elura Mine. Gyroscopic surveys were taken every 20 feet. While drilling the pilot hole, everu time the hole would deviate off course the Accu-Dril® motor with its Bent Housing would be run into the hole to steer the hole back on course. Later a Pilot Hole was drilled in Queensland, Australia at the Mt. Isa Mine using the same tools and methods staying inside a 6″ cylinder for 1969 feet.
For more information, contact Greg Taylor at International Directional Services