In 1998 Vinni was converted to a dynamic positioned deep water-drilling platform in Holland and named to Petrobras XXIII.

Client

Götaverken Arendal Ab, Sweden

Contents of our commission

• Steel design of the pontoons, legs and the corner sections.

• Complete piping and outfitting design of the
  - Pontoons
  - Legs
  - Machinery area
  - Piping on deck
  - Drilling area
• Supervision at site including supervision of piping and machinery systems' installation, coordination between design and production and responsibility of design modifications.
  

The project was completed in about one year. The total number of man-hours used was around 70,000.

Special techniques used

• The Pipematic CAD program was used in our workstations isometric piping design.

• The part lists of the piping drawings were transferred directly to GVA’s computerised material handling system by using a data line.

• The design of the entire drilling area was made by using model technique.