Conversion of Platform Supply Vessel

Structural accommodation unit addition

Mezzanine Deck Extension

Engineering → SPS Class approval → On site supervision

SPS Conversion of Platform Supply Vessel.

INDUSTRY

Offshore oil & gas

vessels

Platform supply vessel

YEAR

2020

SPS Class

DNV-GL

SOW

Engineering, Class approval, On-site supervision

  • 2

    PSVs transformation

  • 3

    months
    project duration

  • 1

    mezzanine deck extension

  • 1

    section module added

The context

GLO Marine was asked by our client to support with the conversion of a PSV, involving the addition of SPS class notation.

The vessel has been repurposed from offshore subsea activities to general renewables support, including the capability to host temporary living quarters for up to 40 personnel.

The major challenge for the team was is manage the vessel’s stability behaviour given the extra weight involved. This upgrade also involves changes to all the on-board systems, especially those relating to the safety of the personnel.

The Challenge

In converting offshore vessels to meet SPS Class notation, we face stringent challenges beyond typical offshore codes, especially in stability and lifesaving standards.

The vessel’s design intricately affects vent placements and flooding arrangements, demanding a collaborative approach between our mechanical and stability engineers. This synergy is crucial to optimise costs against the operational impacts, like extended docking times and potential cargo capacity adjustments.

BRIEF

The work to be done

project phases

  • Installation of new structural accommodation module below Bridge;
  • Compliance with SPS Class notation;
  • Extension of mezzanine deck;
  • Class & Statutory support;
  • Modification of the existing Sewage system;
  • Structural calculations for new MOB Boat;
  • Updates of Lifesaving appliances;
  • System diagrams updates;
  • Intact Stability calculation;
  • Damage stability calculation;
  • Inclining test procedure.

Testimonials

In our client’s words

”We are very pleased with GLO Marine’s performance in this project. We really felt we were in good hands for the entire duration of the project, giving us peace of mind. We look forward to further cooperation with the GLO team."

Karstin Kristiansen

Design & Project Manager

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