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OaSIS 2025 Version 1.0
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83101.02 – Oil and gas well loggers, testers and related workers

Oil and gas well loggers, testers and related workers operate specialized mechanical or electronic equipment, tools or instruments to provide services in conjunction with well drilling, completion or servicing.

Overview

Example job titles

  • Drill stem tester
  • Logging and perforating operator
  • Service rig operator
  • Slickline operator
  • Well testing operator
  • Wireline operator

Core competencies

  • Operation and Control to drive well service trucks to worksites and operate wireline equipment
  • Operation Monitoring of Machinery and Equipment to ensure machinery and equipment are functioning correctly and safely by observing gauges, reading data from instruments and detecting anomalies
  • Depth Perception to determine the exact depth of the wellbore and ensure the correct positioning of various tools and instruments
  • Control of Settings to calibrate sensors or adjust drilling settings to optimize performance and obtain accurate measurements
  • Leadership to guide teams through complex tasks and ensure operations align with the overall project goals
  • Knowledge in Geological Resources to understand geological principles and resource extraction techniques to operate specialized mechanical or electronic equipment effectively, enabling accurate subsurface data collection and interpretation that informs drilling strategies

Main duties

This group performs some or all of the following duties:

  • Oil and gas well loggers, testers and related workers

    • Drive well service or wireline truck to well site
    • Assemble and attach equipment, tools or recorders to drill stem or wireline to conduct required procedures and tests
    • Operate or direct the operation of wireline or unit controls to lower, position and retrieve equipment and instruments
    • Operate recorders and computers in mobile testing or logging unit to collect data
    • May perform limited data interpretation.

Additional information

  • Mobility between jobs on drilling and service rigs is limited by the differences in the machinery, tools and operations performed, but mobility is possible especially from drilling to service rigs.
  • Progression to crew supervisor or manager is possible with experience and additional education and training.
  • The Red Seal endorsement allows for interprovincial mobility.

Similar occupations classified elsewhere

Exclusions:

  • Contractors and supervisors, oil and gas drilling and services (82021)
  • Oil and gas well drilling and related workers and services operators (84101)
  • Water well drillers (72501)

NOC hierarchy breakdown

NOC version

NOC 2021 Version 1.0

Broad occupational category

8 – Natural resources, agriculture and related production occupations

TEER

3 – Occupations usually require a college diploma or apprenticeship training of less than two years; or more than six months of on-the-job training

Major group

83 – Occupations in natural resources and related production

Sub-major group

831 – Occupations in natural resources and fisheries

Minor group

8310 – Underground miners, oil and gas drillers and related occupations

Unit group

83101 – Oil and gas well drillers, servicers, testers and related workers

Occupational profile

83101.02 – Oil and gas well loggers, testers and related workers

O*NET in-it

This page includes information from the O*NET 27.2 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. O*NET® is a trademark of USDOL/ETA. Employment and Social Development Canada has modified all or some of this information. USDOL/ETA has not approved, endorsed, or tested these modifications.