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Geological Technicians, Except Hydrologic Technicians - 19-4043.00

O*NET-SOC Description

Assist scientists or engineers in the use of electronic, sonic, or nuclear measuring instruments in laboratory, exploration, and production activities to obtain data indicating resources such as metallic ore, minerals, gas, coal, or petroleum. Analyze mud and drill cuttings. Chart pressure, temperature, and other characteristics of wells or bore holes.

Sample of Reported Job Titles

No information available.

SOC Occupation Groups

Related Occupations


  • Adjust or repair testing, electrical, or mechanical equipment or devices.
  • Apply new technologies, such as improved seismic imaging techniques, to locate untapped oil or natural gas deposits.
  • Assemble, maintain, or distribute information for library or record systems.
  • Assess the environmental impacts of development projects on subsurface materials.
  • Collaborate with hydrogeologists to evaluate groundwater or well circulation.
  • Collect data on underground areas, such as reservoirs, that could be used in carbon sequestration operations.
  • Collect geological data from potential geothermal energy plant sites.
  • Collect or prepare solid or fluid samples for analysis.
  • Compile data used to address environmental issues, such as the suitability of potential landfill sites.
  • Compile, log, or record testing or operational data for review and further analysis.
  • Conduct geophysical surveys of potential sites for wind farms or solar installations to determine their suitability.
  • Create photographic recordings of information, using equipment.
  • Develop and design packing materials and handling procedures for shipping of objects.
  • Evaluate and interpret core samples and cuttings, and other geological data used in prospecting for oil or gas.
  • Evaluate and interpret seismic data with the aid of computers.
  • Inspect engines for wear or defective parts, using equipment or measuring devices.
  • Interview individuals, and research public databases in order to obtain information.
  • Measure geological characteristics used in prospecting for oil or gas, using measuring instruments.
  • Operate or adjust equipment or apparatus used to obtain geological data.
  • Participate in geological, geophysical, geochemical, hydrographic, or oceanographic surveys, prospecting field trips, exploratory drilling, well logging, or underground mine survey programs.
  • Participate in the evaluation of possible mining locations.
  • Plan and direct activities of workers who operate equipment to collect data.
  • Plot information from aerial photographs, well logs, section descriptions, or other databases.
  • Prepare notes, sketches, geological maps, or cross-sections.
  • Prepare or review professional, technical, or other reports regarding sampling, testing, or recommendations of data analysis.
  • Read and study reports in order to compile information and data for geological and geophysical prospecting.
  • Record readings in order to compile data used in prospecting for oil or gas.
  • Set up or direct set-up of instruments used to collect geological data.
  • Supervise well exploration, drilling activities, or well completions.
  • Test and analyze samples to determine their content and characteristics, using laboratory apparatus or testing equipment.

Detailed Work Activities

  • Analyze geological or geographical data.
  • Analyze geological samples.
  • Calibrate scientific or technical equipment.
  • Collaborate on research activities with scientists or technical specialists.
  • Collect archival data.
  • Collect environmental data or samples.
  • Collect geographical or geological field data.
  • Collect information from people through observation, interviews, or surveys.
  • Collect samples for analysis or testing.
  • Compile environmental or climatological data.
  • Compile geographic or related data.
  • Direct natural resources extraction projects.
  • Direct technical activities or operations.
  • Document events or evidence, using photographic or audiovisual equipment.
  • Inspect equipment to ensure proper functioning.
  • Locate natural resources using geospatial or other environmental data.
  • Maintain laboratory or technical equipment.
  • Operate laboratory or field equipment.
  • Prepare maps.
  • Recommend packing or shipping methods.
  • Record research or operational data.
  • Research environmental impact of industrial or development activities.
  • Research geological features or processes.
  • Set up laboratory or field equipment.
  • Supervise scientific or technical personnel.
  • Survey land or properties.

Military Crosswalk Titles

  • Meteorology and Oceanography (METOC) Services Officer (Navy - Commissioned or Warrant Officer)
  • METOC Analyst Forecaster (Marine Corps - Enlisted)
  • Oil Analysis Operator/Evaluator (Navy - Enlisted)
  • Petroleum Laboratory Specialist (Army - Enlisted)
  • Petroleum Quality Assurance and Additization Specialist (Marine Corps - Enlisted)
  • Petroleum Systems Technician (Army - Warrant Officer only)
  • Scientific Applications Specialist (Air Force - Enlisted)
  • Targeting Acquisition Officer (Marine Corps - Warrant Officer only)
  • Undersea Warfare Research Officer (Antisubmarine) (Navy - Commissioned Officer only)
  • Undersea Warfare Research Officer (General) (Navy - Commissioned Officer only)
  • Weather and Environmental Sciences (Air Force - Commissioned Officer only)
  • Weather and Environmental Sciences, Advanced Weather Activities (Air Force - Commissioned Officer only)

Apprenticeship Crosswalk Titles

  • Test Engine Operator
  • Tester (Petrol Refin)

DOT Crosswalk Titles

  • Field Engineer, Specialist
  • Geological Aide
  • Laboratory Assistant
  • Observer, Electrical Prospecting
  • Observer, Gravity Prospecting
  • Observer, Seismic Prospecting
  • Scout
  • Section-Plotter Operator
  • Surveyor, Oil-Well Directional
  • Technical Operator
  • Test-Engine Evaluator
  • Test-Engine Operator
  • Tester
  • Well-Logging Captain, Mud Analysis
  • Well-Logging Operator, Mud Analysis