Offshore Oil Rig Hierarchy.

Offshore Drilling Contractor has developed comprehensive management system, the most senior person on the Drilling Rigs is Offshroe Installation Manager (OIM) who is by the law, the master or captain of the vessel. The OIM is person who responsible for all departements, including:

• 1. Maintennance
• 2. Marine
• 3. Drilling 
• 4. Rig Administration

1. Maintenance

The Maintenance section is responsible for the maintenance and repairing of the machinery and drilling equipment on board. The section also overlooks all electrical operations on board and assists with installations of third party equipment.

Maintenance Crews:

• Chief Mechanic
• Chief Electrician
• Mechanic
• Electrician
• Assistance Mechanic
• Assistance Electricrian
• 2nd Engineer (Drilling Ship)
• 3rd Engineer (Drilling Ship)
• Motorman
• Welder
• Chief Painter
• Painter

2. Marine

The Marine section handles rig moves and operates the Dynamic Positioning system. It is also responsible for crane, anchor, ballast and deck operations as well as all control room activities, fabric maintenance and helicopter landings and takeoffs.

Marine Crews:

• Barge Master (expat included)
• Assistant Barge Master
• Deck Supervisor/Deck Pusher
• Crane Operator
• Assistan Crane Operator
• Lead Roustabout
• Roustabout
• 2nd Officer (Drilling Ship)
• 3rd Officer (Drilling Ship)
• AB Seaman (Drilling Ship)

3. Drilling

The Drilling section is responsible for all work related to the drilling operations itself; running and cementing of casings, tripping operations and controlling the actual drilling operation by using cyber equipment.

Drilling Crews: 

• Geologist
• Directional Driller
• Drilling Superintedent
• Rig Manager
• Senior Tool Pusher/Night tour Pusher
• Rig Mechanic
• Rig Electrician
• Driller/Assistan Driller
• Derrickhand
• Floor Man

4. Rig Administration

The Administration section handles all the practicalities that make the rig function as a workplace. This includes arranging transport to and from the rig, ensuring emergency preparedness and treating personnel when experiencing health issues.

Rig Officers:

• Safety Officer
• HSE assistan
• Medic
• Radio Operator
• Interpreter
• Material Man
• Store Keeper
• Catering Personnel
• Camp Boss

Image courtesy of Maersk Drilling 

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