Marine Notice No. 25 of 2017

Friday, 09 June 2017

Notice to all Ship owners, Fishing Vessel Owners, Agents, Shipmasters, Skippers, Fishers, and Seafarers

The Department of Transport, Tourism and Sport has been advised by Shell E&P Ireland Ltd, of inspection and engineering tasks that will take place at the Corrib gas field and related offshore infrastructure. The work scopes included are:

(1) Offshore Pipeline and Subsea Structure inspection,

(2) Near Shore Pipeline Inspection,

(3) Well P5 Umbilical Lay,

(4) Pipeline Integrity Test- Intelligent Pig Survey.

The work is due to commence in mid June 2017 and last for approximately 40 days.

Visual and acoustic surveys will be conducted by means of vessel/Remote Operated Vehicle (ROV) mounted sensors and cameras located on attendant survey vessels, ROVs and towed Side Scan Sonar.

Pipeline and Umbilical Inspection

The inspection will commence at the Corrib offshore field location:



54° 20’ 20.413” N

11° 03’ 30.769” W

and will continue toward shore until the vessel is required, on Marine Mammal Observer (MMO) advice, to relocate to the inshore inspection extent at safe navigation depth limit.

The inshore pipeline and umbilical sections will be inspected from the nearest point accessible inshore at high tide progressing to offshore until a suitable overlap with the offshore inspection is achieved. Landfall is at:



54° 16’ 59.799” N

09° 49 14.528” W.


The “Subsea Viking” (call sign: LJJL3) will undertake the deep water surveys and the subsea facilities maintenance and inspection. It will also carry out the umbilical lay and the intelligent pigging operation. All equipment used will be vessel and/or ROV mounted.

The “An Gearoidin” (call sign: EIDL6) will undertake the inshore survey scope. All the equipment used will be vessel deployed.

The vessels will be listening on VHF CH 16 throughout the project.

Presented by Cathy McLean

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Last Updated ( Friday, 09 June 2017 )