From tailing piles at remote mine sites to a contaminated site in a congested urban district, sonic drilling is becoming the method of choice for a variety of challenges.
Sonic drilling uses a dual-line threaded drill pipe and casing, with the inner line being advanced with a core barrel attached to it and the outer line creating hole stability. Because drilling fluid is not used during sampling, this “dry” sampling technique results in intact core samples that are unaltered by drilling fluids.