10 — HSE

Safety on the Rig

The hazards, the equipment, and the systems that keep people alive on one of the most demanding industrial worksites in the world.

Major Hazard Categories

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H₂S (Hydrogen Sulfide)

Colorless gas heavier than air. At 100 ppm causes rapid incapacitation; at 500+ ppm, one breath can be fatal. High concentrations kill your sense of smell instantly.

Full H₂S Safety Guide →
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Fire & Explosion

Hydrocarbons from the wellbore, fuel tanks, and process equipment create constant fire risk. Hot work requires a permit and gas testing immediately before starting.

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Dropped Objects

The leading cause of injury and fatality on rigs. Tools and equipment can fall from derrick height. All tools must be tethered on height work.

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Stored Energy / LOTO

Hydraulic, pneumatic, electrical, and mechanical energy stored in rig systems. Lockout/Tagout (LOTO) procedures must be followed for all maintenance.

PPE Requirements

Hard Hat (EN 397 / ANSI Z89.1)Always Required
Steel-Toe Boots (S3 rating)Always Required
FR CoverallsAlways Required
Safety Glasses / Face ShieldAlways Required
H₂S Personal MonitorSour Wells
SCBASour Wells / Fire
Fall Arrest HarnessWorking at Height
Welding Helmet (Shade 10+)Hot Work Only

Key Safety Systems

Every offshore installation has a documented Emergency Response Plan including muster point assignment, lifeboat/liferaft stations, evacuation routes, fire and gas detection with automatic shutdown, and helicopter emergency procedures. Know yours before your first shift.

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Safety Deep Dives

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H₂S Safety

Detection, exposure limits, escape procedures, and personal monitoring requirements for sour gas.

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