# Service Unit Operators, Oil and Gas > Operate equipment to increase oil flow from producing wells or to remove stuck pipe, casing, tools, or other obstructions from drilling wells. Includes fishing-tool technicians. - Code: 47-5013.00 (O*NET-SOC; SOC 2018 47-5013) - Family: [Construction & Extraction](https://foundation.org.ai/occupations#family-47), one of its 65 occupations - Tasks: 19 tasks (12 core and 7 supplemental) - Page: https://foundation.org.ai/occupations/47-5013.00 - JSON: https://foundation.org.ai/data/tasks/47-5013.00.json ## What the work is made of 1. Maintain and perform safety inspections on equipment and tools. Core task · Task 20451 · Rated by 49 people who do the job, July 2013 2. Operate controls that raise derricks or level rigs. Core task · Task 7080 · Rated by 49 people who do the job, July 2013 3. Listen to engines, rotary chains, or other equipment to detect faulty operations or unusual well conditions. Core task · Task 20452 · Rated by 48 people who do the job, July 2013 4. Prepare reports of services rendered, tools used, or time required, for billing purposes. Core task · Task 7083 · Rated by 48 people who do the job, July 2013 5. Install pressure-control devices onto wellheads. Core task · Task 7076 · Rated by 49 people who do the job, July 2013 6. Confer with others to gather information regarding pipe or tool sizes or borehole conditions in wells. Core task · Task 7074 · Rated by 48 people who do the job, July 2013 7. Operate pumps that circulate water, oil, or other fluids through wells to remove sand or other materials obstructing the free flow of oil. Core task · Task 7078 · Rated by 49 people who do the job, July 2013 8. Drive truck-mounted units to well sites. Core task · Task 7075 · Rated by 49 people who do the job, July 2013 9. Interpret instrument readings to ascertain the depth of obstruction. Core task · Task 7088 · Rated by 47 people who do the job, July 2013 10. Thread cables through derrick pulleys, using hand tools. Core task · Task 7077 · Rated by 49 people who do the job, July 2013 11. Select fishing methods or tools for removing obstacles such as liners, broken casing, screens, or drill pipe. Core task · Task 7085 · Rated by 48 people who do the job, July 2013 12. Close and seal wells no longer in use. Core task · Task 7079 · Rated by 49 people who do the job, July 2013 13. Direct drilling crews performing activities such as assembling and connecting pipe, applying weights to drill pipes, or drilling around lodged obstacles. Supplemental task · Task 7081 · Rated by 48 people who do the job, July 2013 14. Apply green technologies or techniques, such as the use of coiled tubing, slim-hole drilling, horizontal drilling, hydraulic fracturing, or gas lift systems. Supplemental task · Task 19874 · Rated by 49 people who do the job, July 2013 15. Operate specialized equipment to remove obstructions by backing off or severing pipes by chemical or explosive action. Supplemental task · Task 7084 · Rated by 47 people who do the job, July 2013 16. Perforate well casings or sidewalls of boreholes with explosive charges. Supplemental task · Task 7082 · Rated by 48 people who do the job, July 2013 17. Examine unserviceable wells to determine actions to be taken to improve well conditions. Supplemental task · Task 7086 · Rated by 48 people who do the job, July 2013 18. Monitor sound wave-generating or detecting mechanisms to determine well fluid levels. Supplemental task · Task 7089 · Rated by 47 people who do the job, July 2013 19. Insert detection instruments into wells with obstructions. Supplemental task · Task 7087 · Rated by 48 people who do the job, July 2013 ## More in Construction & Extraction - [Boilermakers](https://foundation.org.ai/occupations/47-2011.00): 17 tasks - [Brickmasons and Blockmasons](https://foundation.org.ai/occupations/47-2021.00): 14 tasks - [Carpenters](https://foundation.org.ai/occupations/47-2031.00): 29 tasks - [Carpet Installers](https://foundation.org.ai/occupations/47-2041.00): 16 tasks - [Cement Masons and Concrete Finishers](https://foundation.org.ai/occupations/47-2051.00): 26 tasks - [Construction and Building Inspectors](https://foundation.org.ai/occupations/47-4011.00): 19 tasks - [Construction and Related Workers, All Other](https://foundation.org.ai/occupations/47-4099.00): no tasks listed - [Construction Laborers](https://foundation.org.ai/occupations/47-2061.00): 27 tasks - [Continuous Mining Machine Operators](https://foundation.org.ai/occupations/47-5041.00): 15 tasks - [Derrick Operators, Oil and Gas](https://foundation.org.ai/occupations/47-5011.00): 15 tasks - 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