Drilling rigs were used for drilling.
Drilling rigs were used by Euro Sea Gas. These rigs attracted the Weed creature. (TV: Fury from the Deep)
A laser-like drilling rig was used by the Daleks on Antalin for mining. Space Security Service agent Dryn Faber successfully destroyed the rig costing the Daleks valuable minerals and chemicals they were in the process of mining despite efforts of Marine Daleks and a Slyther. (PROSE: War of the Daleks)