Processing a drilling rig incident on the AEOLUS vessel
Lézardrieux / Saint-Brieuc / Paris - July 28, 2021 -
An incident was reported this morning by the captain of the ship AEOLUS to the CROSS Corsen (Regional Operational Center for Surveillance and Rescue) and the maritime coordination of Ailes Marines (MCC).
During the series of drillings on position SB57, a technical problem was observed on one of the ship's three drills. Upon learning of the incident, Van Oord halted all ongoing drilling activities on the AEOLUS and decided to reassemble the affected drill. During the ascent of the tool, a hydraulic fluid of the "PANOLIN HLP SYNTH 46" type was observed on the deck of the AEOLUS vessel and in the marine environment.
Application of environmental safety protocol
Ailes Marines immediately applied the new enhanced environmental safety protocols and tools. Three surveillance vessels were deployed in the area. The two surveillance vessels, the REM TRADER, and the BON SECOURS 7, looked for traces of iridescence on the surface. The REM
TRADER also took several samples of seawater near the AEOLUS.
The REM TRADER equipped with absorbent socks and the TSM PENZER, equipped with a floating boom intervened in prevention near the AEOLUS vessel.
As part of the agreement signed on June 21 with the Documentation Center for Research and Experimentation on accidental water pollution, CEDRE provided the technical teams of Ailes Marines with the modeling of the incident and the map of the areas. to be controlled by air and nautical means.
Several aerial visual checks
Ailes Marines conducted two helicopter overflights of the area. The crews did not observe the presence of iridescence or the formation of slicks in the marine environment. For their part, the maritime authorities also carried out a control overflight of the area. The nautical and air resources mobilized by Ailes Marines will continue their surveillance mission for several days in collaboration with the maritime authorities.
Hydraulic fluids used by Van Oord
For its drilling operations, Van Oord uses hydraulic equipment. These tools work with hydraulic fluid specially designed and developed for offshore work. PANOLIN is classified as "readily biodegradable fluids" according to the international criteria of OECD 301B, with low environmental impact. The PANOLIN HLP SYNTH 46 used in the drilling rig belongs to this product range.
About Ailes Marines
Key figures for the Baie de Saint-Brieuc offshore wind project:
- 75 km2 in area
- 62 Siemens Gamesa SG 8.0-167 DD 8 MW wind turbines
- 496 MW of installed capacity
- 1,820 GWh/year of production, i.e. the annual electricity consumption of 835,000 inhabitants (including heating)