Page 45: of Offshore Engineer Magazine (Mar/Apr 2025)

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WELL-SAFE GUARDIAN

Type: Semi-Submersible Drilling Rig

Original Build: 1985 (upgraded for P&A operations)

Water Depth Rating: Up to 1,500 ft

Well Depth Capability: ~20,000 ft

Notable Features: • Integrated D300 saturation dive system • Trident Intervention Module for subsea well access • SIMOPS capability for simultaneous diving and rig-based operations • Enhanced for legacy subsea wellhead interface • Fully certifed for UKCS operations

The skinny: Unique in the North Sea as the only rig with onboard saturation diving and subsea intervention tooling.

WELL-SAFE PROTECTOR

Type: Jack-Up Drilling Rig

Original Build: 1983 (converted for decommissioning)

Water Depth Rating: Up to 400 ft

Well Depth Capability: ~15,000 ft

Notable Features: • Optimized for platform well P&A • Digital slickline compatibility • Equipped for SIMOPS with modular deployment • Proven in congested surface infrastructure environments • Advanced skidding and cantilever reach for tight well layouts

The skinny: Ideal for North Sea platform campaigns requiring fexible deployment and minimal footprint.

WELL-SAFE DEFENDER

Type: Semi-Submersible Drilling Rig

Original Build: 1983 (upgraded)

Water Depth Rating: Up to 1,500 ft

Well Depth Capability: ~20,000 ft

Notable Features: • Second-generation semi optimized for well abandonment • Confgured for campaign-mode effciency • Modular setup supports rig-based and intervention operations • Redundant well control systems for legacy completions • Enhanced deck space for multi-well logistics

The skinny: Built for scalable subsea abandonment projects across the North Sea and beyond.

march/april 2025 OFFSHORE ENGINEER 45