Driller Assistant

Alternative Titles: Driller's Offsider, Roustabout (Oil and Gas)

Drillers' assistants help move, set up and operate drilling rigs and related equipment to drill holes for such things as oil, natural gas and water, building foundations, minerals exploration, and site investigation.

Drillers' assistants may perform the following tasks:

  • help move drilling rigs and equipment from site to site, set up in the new site and connect power cables or hoses for water and air supply
  • help obtain drilling core samples
  • dig and clean mud pits and drains
  • mix and test drilling fluids, chemicals and grout
  • assist in slotting, welding, and inserting casing screens
  • assist with well development and pumping tests
  • operate equipment such as pumps for air, water and mud, and equipment and tools used to correct problems in drilled holes caused by mechanical breakdowns or by harmful natural conditions
  • carry out minor maintenance and repairs, including lubrication and cleaning
  • clean and maintain equipment, drill and camp sites.

With experience and sometimes further training, it is possible to become a:

Driller who supervises teams of assistants performing the tasks above.

Drillers may specialise in sub-sea or underwater drilling, diamond core drilling, rotary/percussion drilling, coal seam drilling or water multi-purpose drilling.

The major sectors in the drilling industry are:

Blasthole drilling for the placement of explosives for the removal of rock and ore in quarries and mines, and in the construction of roadworks, dam sites and other capital works.

Mineral exploration and investigation drilling which is carried out all over Australia and by Australian companies overseas, in areas of suspected or known mineral deposits.

Oil and gas drilling which is carried out offshore and onshore by contract companies mainly employed by oil companies.

Site investigation/geotechnical drilling to determine the soil and rock characteristics on construction sites.

Foundation/construction drilling on construction sites, usually in towns and cities, as a part of the actual building or construction process. Holes may be drilled for cast in-situ (on site) piers, contiguous piers, rock bolting, etc.

Water well drilling which is mainly carried out by private contractors based in rural areas.

Drillers and drillers' assistants usually work long hours on extended roster systems, and either outdoors in all weather conditions or underground, usually as members of teams or crews. The work is generally hard and physically demanding.

Required Skills - Driller Assistant

  • interested in practical and manual activities
  • aptitude for mechanics and able to handle machinery
  • physically fit
  • able to work as part of a team
  • willing to work in remote areas under difficult conditions
  • good organisation skills
  • able to record details accurately
  • clean police record
  • be 18 years old (as it is a legal requirement on most mine and quarry sites)
  • have a drug and alcohol clearance
  • pass a medical examination

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