OFFSHORE & SHORE APPROACH HDD
Capability
Shore-to-Sea & Subsea HDD
Shore-to-sea and offshore-to-onshore HDD crossings for subsea cables and pipelines, including long-distance shore approaches and pipeline landfalls.
Marine Coordination & Exit-Point Management
Marine coordination and spread/interface planning, HDD exit-point management below sea level, and survey/navigation requirements for offshore drill paths.
Execution Planning
Drilling-fluid management, environmental protection measures, pullback planning, and temporary works for marine and coastal crossings.
Case Study — Oman Shore Approach
132kV Subsea Land Cable — Mahout to Masirah
Client: OETC (Oman Electricity Transmission Company) | Completed 16 February 2026
LIFCON executed the shore approach for OETC's 132kV subsea land cable interconnection between Mahout (mainland) and Masirah Island. Two 710mm (28") HDPE SDR9 conduits were installed by HDD beneath the shoreline over a 910m crossing, exiting at approximately -8m below mean sea level to receive the offshore cable pull-in.
Scope: onshore rig set-up, pilot bore and reaming, offshore product-pipe string-out and flotation, marine towing of the pipe bundle to the entry alignment, and final pull-back.
Underwater inspection of the installed pipeline flange connection, taken on completion (16 Feb 2026).
Case Study — NEOM Subsea HDD
NEOM Southern Cluster Subsea HDD — Oxagon, Port of NEOM
Client: NEOM | Completed 6 July 2024
LIFCON delivered the HDD shore approach for the Southern Cluster subsea project at Oxagon, Port of NEOM. Two 160mm (6") HDPE SDR9 conduits were installed by HDD over a 639m crossing, exiting the seabed at approximately -27m below mean sea level through a coral-reef environment.
Scope: onshore rig set-up and pilot bore, reaming and pull-back, onshore product-pipe string fabrication and testing, marine float-out and towing to the offshore exit, and diver-assisted subsea connection and inspection.
Diver-surveyed subsea bore exit — HDPE pipe with flange at the seabed, coral-reef environment, -27m MSL.
Dewatering Pipeline — Jeddah Corniche
Client: Hala Hotel | Location: Al-Ruwais, Jeddah | Completed 24 November 2018
LIFCON delivered the HDD shore approach for a seawater dewatering outfall at the Jeddah Corniche, Al-Ruwais. A 630mm (25") HDPE SDR9 pipeline was installed by HDD over a 515m crossing, exiting the seabed at approximately -4m below mean sea level.
Floated HDPE pipeline shown curving offshore along the Corniche shoreline before crane-assisted lowering to the seabed exit.
Completed Offshore & Shore Approach Projects
Subsea and coastal HDD crossings executed to date
| PROJECT | SCOPE | CLIENT |
|---|---|---|
| 132kV Subsea Land Cable — Mahout to Masirah | HDD installation of 2×710mm (28") HDPE SDR9 (910 m, -8 m MSL) | OETC (Oman) |
| NEOM Southern Cluster Subsea HDD — Oxagon | HDD installation of 2×160mm (6") HDPE SDR9 (639 m, -27 m MSL) | NEOM |
| Dewatering Pipeline — Jeddah Corniche, Al-Ruwais | HDD installation of 630mm (25") HDPE SDR9 (515 m, -4 m MSL) | Hala Hotel |
