What you need to perform it
Primary qualification
- No nautical qualification: industrial personnel under the IMO MODU Code, not seafarers with an STCW CoC. Entry from roustabout (deck) with proven experience; secondary or technical vocational education as the usual base (as a guide).
- Offshore safety training: OPITO BOSIET with CA-EBS and a valid offshore medical (OEUK standard or operator equivalent).
- Depending on flag and unit type (drillship vs platform), STCW A-VI/1 basic training may also be required (verify per unit).
Basic STCW
- OPITO BOSIET/FOET (four-yearly refresher) with HUET helicopter escape and CA-EBS.
- MIST — Minimum Industry Safety Training (OPITO) or the contractor's equivalent induction.
Specific courses
- Introductory/awareness well control (IADC WellSharp or IWCF) — Driller level comes higher up the ladder.
- H2S safety (ANSI/ASSP Z390.1 as reference — as a guide, field-dependent).
- Power tongs, slips and iron roughneck: operation and pinch points (contractor training).
- Dropped objects prevention (DROPS), manual handling and working at height.
- Slinging and banksman training to support deck lifts (as a guide).
Indicative experience
As a guide: 6-12 months as an offshore roustabout (or equivalent heavy-industry experience) before moving up to the drill floor; 2-3 years as a floorhand open the way to derrickman and from there to assistant driller.
Observations
Classic drilling ladder: roustabout → roughneck → derrickman → assistant driller → driller → toolpusher (this dataset includes the assistant driller). A position of maximum physical demand, on 14/14 or 28/28 rotations and day-rate pay; automation (iron roughneck, pipe handling) is reducing red-zone exposure but does not eliminate the trade. Stop work authority culture and respect for the red zone are what set good crews apart.
What this role does
This is the hard physical work of the drill floor: making and breaking pipe, moving heavy tools and keeping the pace of the operation through 12-hour shifts. It is the area of the unit with the most energy in motion — suspended loads, rotating pipe, surface pressure — so the trade is as much about red-zone discipline as strength: knowing where not to stand. It is the classic entry point to the drilling career.
Typical watches
- 12-hour shifts (day/night) on 14/14 or 28/28 offshore rotations (as a guide)
Key responsibilities
- Make and break drill pipe connections on the drill floor with power tongs, slips and the iron roughneck.
- Handle tubulars during tripping in and out, coordinated with the driller and the derrickman.
- Keep the drill floor clean and tidy: housekeeping here is a safety barrier, not cosmetics.
- Carry out first-line preventive maintenance of the drilling equipment and report anomalies.
- Take part in well control drills and safety stand-downs (stop work authority).
Operational scope
- Drill floor and the red zone of the operation
- Pipe deck and drilling support areas
Profile reviewed by HydroAbyss (2026). Cited rules and timeframes are indicative: the final requirement is set by the flag State, the Administration and each company.