Unmanned Facilities
The concept of unmanned or minimally manned facilities takes remote operations to its logical conclusion - designing and operating production facilities with no permanent on-site personnel. Operations are managed entirely from an onshore IOC, with periodic visits for maintenance that cannot be performed remotely.
Why Unmanned?
Safety
If nobody is on site, nobody can be hurt. Unmanned platforms eliminate the risk of fatalities from process safety incidents, helicopter crashes, and falls.
Cost Reduction
Removing accommodation, catering, lifeboats, medevac helicopters, and the associated weight from an offshore platform reduces CAPEX by 20-40% and OPEX by 30-50%.
Example: An unmanned wellhead platform costs ~$150M vs $300M for a manned equivalent - the savings make marginal fields economically viable.
Remote & Harsh Environments
Arctic, deep offshore, and desert locations where maintaining permanent staff is expensive, logistically complex, or dangerous are ideal candidates for unmanned operations.
Enabling Technologies
Remote Monitoring & Control
Full SCADA coverage with redundant communications (fibre + satellite) enables every valve, pump, and sensor to be monitored and controlled from the IOC.
Safety Instrumented Systems (SIS)
Automated emergency shutdown systems that detect hazards (gas leaks, fire, overpressure) and bring the facility to a safe state without human intervention.
Robotic Inspection & Maintenance
Drones and quadruped robots perform routine inspections. Some maintenance tasks can be performed by robotic manipulators.
High-Reliability Equipment
Equipment must run for extended periods without manual intervention. Redundant systems (dual pumps, backup power) ensure continuous operation.
Industry Examples
Equinor - Oseberg H: One of the first normally unmanned wellhead platforms on the Norwegian shelf. Controlled remotely from the Oseberg Field Centre, with crew visits only for maintenance campaigns.
Eni - Goliat FPSO: Though not fully unmanned, Eni designed Goliat with maximum automation, targeting a crew of 30-40 vs the 80-100 typical for a comparable FPSO.
ADNOC - Unmanned Artificial Islands: ADNOC's Upper Zakum field uses artificial islands with high levels of automation, reducing offshore manning requirements by 40% compared to conventional platform designs.