BWTS installation on board Semi-Submersible Drilling Rig

1. Main outline of the project

This project follows up the Basic, Detail and Electrical design for retrofit of “InTank” BWTS on board the Semi-Submersible Drilling Rig – Stena Don. We have completed more than 450 BWTS designs for all types of vessels but this one is entirely different.

General Informaton for Sten Don:

• Dimensions – 95.5 m x 81.0m
• Flag – United Kingdom (UK)
• Drafts – 21.5m  / 11.5-12m transit
• Accommodation – 140
• Transit speed – up to 8 knots
• Maximum water depth – 650m / 2132ft
• Maximum drilling depth – 8,500m / 27,900ft
• Helideck – Rated for EH-101 and S-92
• Rig Type – 6 columns CS30 Semi Submersible Twin Pontoon

A new deckhouse placed on deck 9 (as shown in the pictures) will contain the chemical mixing tanks. There will be piping distribution lines from the deck house to the four dosing units in the pontoons.

A new deckhouse placed on deck 9 (as shown in the pictures) will contain the chemical mixing tanks. There will be piping distribution lines from the deck house to the four dosing units in the pontoons.