Odex Drilling / Simultaneous Casing Drilling
ODEX is an excellent option when unconsolidated formations are too dense or cobbly for Auger Drilling. ODEX is a down-hole air hammer system that is designed to advance casing during drilling. Once a desired depth is reached they eccentric bit can be retrieved leaving the casing in place for sampling or installations.
When the bore-hole is complete, the casing is retrieved to be used again.