Client: Atrum Coal
Location: British Columbia, Canada
Drill Rigs Committed: 1
In 2014 Geotech completed a two month program for Atrum Coal at their Groundhog site in Northern British Columbia. Throughout this program Geotech completed over 1,025 meters of rotary air blast drilling.
During the program the drill crews successfully mitigated many challenges, including excessive amounts of downhole water (40-70 gpm), heavily fractured bedrock, and the limited use of muds due to stringent testing requirements. In order to overcome these challenges, the Geotech crew were required to precisely monitor the downhole ground conditions while drilling. Due to the helicopter portable nature of this program, it was necessary for Geotech to manage a multi-engine operation, requiring two air compressors and air booster to reach the target depths.
A Hydracore 2000 Hybrid helicopter portable drill rig was used for this operation. The drill rig was specifically modified to complete the air rotary methodology, which many helicopter portable rigs are not capable. Borehole depths averaged around 155 meters rotary air blast and pdc drilling. The Atrum Coal project also included the installation of 2″ monitoring wells and air lift testing, which was completed with the helicopter portable drill.