Deep drilling encounters risks including voids (especially in limestone stratigraphy), but modern drilling technology has improved handling of these challenges; voids are sometimes small enough to drill through without casing, sometimes large enough to require casing down and drilling within the casing.
factualpending
Speaker
Steve RobertsonEvidence Quote
“we have a particular vulnerability to hitting voids when you're working in limestones because limestones tend to dissolve and under certain water conditions and and you end up with caves”
Created: 8/12/2026, 6:03:29 PM
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