Well and Core Drill Operators

Operate machine to drill wells and take samples or cores for analysis of strata.

Job Task

• Starts and controls drilling action and lowering of well casing into well bore.
• Withdraws drill rod from hole and extracts core sample.
• Couples additional lengths of drill rod as bit advances.
• Changes drill bits as needed.
• Pours water into well or pumps water or slush into well to cool drill bit and remove drillings.
• Retrieves lost equipment from bore holes, using retrieval tools and equipment.
• Records drilling progress and geological data.
• Fabricates well casings.
• Lubricates machine, splices worn or broken cables, replaces parts, and builds up and repairs drill bits.
• Drives or guides truck-mounted equipment into position, levels and stabilizes rig, and extends telescoping derrick.
• Inspects core samples to determine nature of strata, or takes samples to laboratory for analysis.
• Assembles non-truck-mounted drilling equipment, using hand tools and power tools.
• Monitors operation of drilling equipment to determine changes in strata or variations in drilling.

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