Cape Town, South Africa.
The arrival of DSV Iremis da Vinci in Cape Town harbour earlier this year was a positive sign that Project Ikhwezi is still making steady progress as the next phase of its subsea installation campaign gets underway offshore on PetroSA’s F-O field.
In March, PetroSA secured the services of the DSV Iremis da Vinci to work on phase two of the Project Ikhwezi subsea installation campaign. The move came after the offshore construction vessel, OCV Normand Installer, successfully completed phase one of the campaign in February.
DSV Iremis Da Vinci is a diving support and ROV (remotely operated vehicle) support vessel, featuring a state-of-the-art 18-man saturation diving system. The diving system is rated to 300m and includes twin three-man diving bells with port and starboard orientation as well as two 18-man self-propelled hyperbaric lifeboats.
The vessel also incorporates a special separate forecastle deck with dedicated control room below the shelter deck for ROV deployment and operation. DSV Iremis Da Vinci mobilised for project Ikhwezi in Cape Town harbour on 28 March in preparation for her campaign. The scope of work on her first trip included sailing to the F-O field to:
- Carry out a survey spread calibration/site survey of the five subsea structure locations – NTIF, STIF, NMS, SMS and SSIV.
- Mark the positions of each structure (except STIF and SMS) using sandbags.
- Relocate flexible flowlines from the NMS target box.
After successfully completing her first trip, DSV Iremis Da Vinci returned to port in April to prepare for her second trip in the near future.