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Details for Geological Sample Test Technicians


Test and analyze geological samples, crude oil, or petroleum products to detect presence of petroleum, gas, or mineral deposits indicating potential for exploration and production, or to determine physical and chemical properties to ensure that products meet quality standards.


  • Test and analyze samples in order to determine their content and characteristics, using laboratory apparatus and testing equipment.
  • Collect and prepare solid and fluid samples for analysis.
  • Assemble, operate, and maintain field and laboratory testing, measuring, and mechanical equipment, working as part of a crew when required.
  • Compile and record testing and operational data for review and further analysis.
  • Adjust and repair testing, electrical, and mechanical equipment and devices.
  • Supervise well exploration and drilling activities, and well completions.
  • Inspect engines for wear and defective parts, using equipment and measuring devices.
  • Prepare notes, sketches, geological maps, and cross sections.
  • Participate in geological, geophysical, geochemical, hydrographic or oceanographic surveys, prospecting field trips, exploratory drilling, well logging or underground mine survey programs.
  • Plot information from aerial photographs, well logs, section descriptions, and other databases.
  • Assess the environmental impacts of development projects on subsurface materials.
  • Collaborate with hydro-geologists in order to evaluate groundwater and well circulation.
  • Prepare, transcribe, and/or analyze seismic, gravimetric, well log or other geophysical and survey data.
  • Participate in the evaluation of possible mining locations.


  • Realistic - Realistic occupations frequently involve work activities that include practical, hands-on problems and solutions. They often deal with plants, animals, and real-world materials like wood, tools, and machinery. Many of the occupations require working outside, and do not involve a lot of paperwork or working closely with others.
  • Investigative - Investigative occupations frequently involve working with ideas, and require an extensive amount of thinking. These occupations can involve searching for facts and figuring out problems mentally.
  • Conventional - Conventional occupations frequently involve following set procedures and routines. These occupations can include working with data and details more than with ideas. Usually there is a clear line of authority to follow.

Education, Training, Experience

  • Education - Most of these occupations require a four-year bachelor's degree, but some do not.
  • Training - Employees in these occupations usually need several years of work-related experience, on-the-job training, and/or vocational training.
  • Experience - A considerable amount of work-related skill, knowledge, or experience is needed for these occupations. For example, an accountant must complete four years of college and work for several years in accounting to be considered qualified.



  • Reading Comprehension - Understanding written sentences and paragraphs in work related documents.
  • Mathematics - Using mathematics to solve problems.
  • Science - Using scientific rules and methods to solve problems.
  • Critical Thinking - Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions or approaches to problems.
  • Monitoring - Monitoring/Assessing performance of yourself, other individuals, or organizations to make improvements or take corrective action.

Related Careers

  • Chemical Equipment Operators and Tenders
  • Computer, Automated Teller, and Office Machine Repairers
  • Geophysical Data Technicians
  • Heat Treating Equipment Setters, Operators, and Tenders, Metal and Plastic
  • Multiple Machine Tool Setters, Operators, and Tenders, Metal and Plastic
  • Power Distributors and Dispatchers
  • Pump Operators, Except Wellhead Pumpers
  • Ship Engineers
Wages for this career
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