An exploration core driller’s success depends on the productivity and performance of their drilling equipment. With today’s contractors facing heightened pressure to increase productivity and reduce costs, choosing the right diamond coring bit for the job has never been so important. Improper bit selection can lead to productivity loss, poor core recovery, hole problems and unnecessary wear and tear on rigs, rods and downhole tools.
Another critical consideration when selecting a bit is the ground formation. It is important for drillers to perform appropriate research to determine what lies beneath the surface. Ground formations are generally gauged on a hardness scale. The Mohs scale measures hardness on a range from 1 to 10, with 10 being the hardest. The hardness of the ground should be measured in selecting the appropriate impregnated bit formula.