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Exploration, Recovery, and Transportation
Derrick
Blowout
preventer
Spare pipe
Casing
Drill string
Drill collar
Bit
Mud and casings
Electric
generator
Turntable
Engines
turn turntable
FIGURE 6.1 Schematic of a drilling rig.
FIGURE 6.2 Schematic of mud circulating around a drill bit.