Operate equipment to increase oil flow from producing wells or to remove stuck pipe, casing, tools, or other obstructions from drilling wells. May also perform similar services in mining exploration operations.

• Fishing-Tool Technician, Oil Well
• Oil-Well-Service Operator
• Service-Unit Operator, Oil Well

• Analyze conditions of unserviceable wells in order to determine actions to be taken to improve well conditions.
• Assemble and lower detection instruments into wells with obstructions.
• Assemble and operate sound-wave generating and detecting mechanisms in order to determine well fluid levels.
• Close and seal wells no longer in use.
• Confer with other personnel in order to gather information regarding pipe and tool sizes, and borehole conditions in wells.
• Direct drilling crews performing such activities as assembling and connecting pipe, applying weights to drill pipes, and drilling around lodged obstacles.
• Direct lowering of specialized equipment to point of obstruction, and push switches or pull levers in order to back-off or sever pipes by chemical or explosive action.
• Drive truck-mounted units to well sites.
• Install pressure-control devices onto well heads.
• Interpret instrument readings in order to ascertain the depth of obstruction.
• Observe load variations on strain gauges, mud pumps, and motor pressure indicators; and listen to engines, rotary chains, and other equipment in order to detect faulty operations or unusual well conditions.
• Operate controls that raise derricks and level rigs.
• Perforate well casings or sidewalls of boreholes with explosive charges.
• Plan fishing methods and select tools for removing obstacles, such as liners, broken casing, screens, and drill pipe, from wells.
• Quote prices to customers; and prepare reports of services rendered, tools used, and time required so that bills can be produced.
• Start pumps that circulate water, oil, or other fluids through wells, in order to remove sand and other materials obstructing the free flow of oil.
• Thread cables through pulleys in derricks and connect hydraulic lines, using hand tools.

• analyze technical data, designs, or preliminary specifications
• assemble detonation units for construction or extraction work
• charge blasting holes with explosives
• confer with engineering, technical or manufacturing personnel
• control operation of compressors
• determine amount or kind of explosive needed to complete job
• determine locations, angles, and depths of blast holes
• detonate blasting charges for construction or extraction work
• direct and coordinate activities of workers or staff
• drill blasting holes
• monitor operation of drilling equipment
• operate hoist, winch, or hydraulic boom
• operate power driven pumps
• plan or organize work
• prepare reports
• remove or retrieve tools, equipment, casings or pipe from wells
• use hand or power tools
• use measuring devices in construction or extraction work
• use precision measuring tools or equipment
• use two-way radio or mobile phone