Job Description:

• 1) Sets up and operates portable drilling rig to drill wells: Extends stabilizing jackscrews to support and level drill rig.

• 2) Moves levers to control power-driven winch that raises and extends telescoping derrick.

• 3) Bolts trusses to derrick and machine frame.

• 4) Assembles drilling tools, using handtools or power tools.

• 5) Moves levers and pedals to raise and lower drill tools and well casing into well bore.

• 6) Moves levers and pedals and turns handwheels to control action of machine that drills or punches well bore and lowers casing into well.

• 7) Pours water into well or pumps water or slush into well to cool drill bit and remove drillings.

• 8) Listens to sounds of drilling machine and feels cable or brake to determine changes in rock formations being penetrated or variations in drilling process.

• 9) Moves levers to adjust stroke and impact of cable tool drilling machine or changes drill bits of rotary drilling machine according to nature of strata encountered.

• 10) Replaces drill bit with tool to collect samples of earth or rock being penetrated.

• 11) Inspects core samples to determine nature of strata encountered or takes samples to laboratory for analysis.

• 12) Records drilling progress and geological data.

• 13) Splices worn or broken cable.

• 14) Fabricates well casings and builds up worn drill bits, using oxyacetylene cutting and welding equipment.

• 15) Retrieves lost equipment from bore holes, using fishing tools and equipment.

• 16) May repair drill bits, using forging furnace, hammer, and anvil.

• 17) May be designated according to type drilling rig operated as Well-Drill Operator, Cable Tool; Well-Drill Operator, Rotary Drill.

• 18) May operate well-drilling rig to restore irrigation, industrial, and domestic water wells to active production and be designated Well-Reactivator Operator.