Tanker Double Hull Conversion

8/12/2019 Tanker Double Hull Conversion

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Presentation

For

Single Hull/Bottom Tanker

Converted toDouble Hull/Bottom Tanker

Single to Double HullConversion


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1. Concept Design

2. Detail Design and Class Approval

3. Shipyard Production Design

4. Block Prefabrication

5. Conversion in Shipyard

Technical Progress


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Option 1: Owners Responsibility

Option 2: Shipyards Responsibility

1. Concept Design


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2. Detail design and Class Approval

Option 1: Owners Responsibility

Option 2: Shipyards Responsibility

2. Detail Design and Class

Approval


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3. Shipyard Production Design

Shipyard are fully responsible for converting the basic

design to production drawings within Max. 10 days.


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4. Block Prefabrication Steel plate & structure cutting.

Block assembling.

Welding.

Rectification.

Block to be blasted and painted as per paint specification

Inspection & acceptance.


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New block to be prefabricated in workshop

Inner bottom plate block

Side BHD block


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5. Conversion in Shipyard

Progress 1: Conversion in Center Oil Tank

Progress 2: Conversion in Side Oil Tank

Progress 3: Painting


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Step 1: Vessels arrival

Staging

Lighting and ventilation

Tank cleaning and gas-free for hot work

GAS FREE for

Hot Work !!!

Progress 1: Conversion in Center Oil Tank


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Step 2: Deck access opening

Strength Calculation

Deck piping and fittings

Reinforcement


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Step 3: Cut and removal out the webs with BKTs in COT

Cargo line&Heating coil

Measuring

Cutting


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Step 4: Installation of Inner bottom plate block in COT


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Step 5: Installation of BKTs, Cargo lines, heating coil etc. and other

fitttings


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Progress 2: Conversion in Side Oil Tank

Step 1: Cut and removal out

the structures from Side Oil

Tank.


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Step 2: Installation of Girders and Webs in Side Oil Tank.


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Step 3: Installation of Inner bottom plate block in Side Oil Tank


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Step 4: Installation of Slop bottom plate block in Side Oil Tank


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Step 5: Installation of side BHD block in Side Oil Tank


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Step 5: Installation of webs in Side Oil Tank


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Step 6: Final Installation after steel work Ballast system integrating

Ladders

Cargo oil pipe/heating coil

Other fittings on deck or in

tank

Weld seam testing

Other testing


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Progress 3: Painting

After testing, all welded seams to be de-rusted by

Grinding and painted as per Specification.

Blasting and painting in Tank if required.


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Vessels DepartureDocking/undocking

Inclining testing


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Vessels Name Country LOA/Beam Conversion

Period

Main Work

MT Pacific Trader Greece 131M/18.5M 32days Single Hull to Double

Hull

Converted vessels

Vessels Name Country LOA/Beam ConversionPeriod Main Work

MT Dartagnan Greece 228.6M/32.2

M

75days Single Bottom to

Double Bottom


Period

Main Work

MT Jaguar UAE 167M/27.4 75days Single Hull/Bottomto Double

Hull/Bottom


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Vessels under conversionVessels Name Country LOA/Beam Conversion

Period

Main Work

MT Korea Sunnyhill Korea 171M/25.4M 60days Single Hull/Bottom

to Double

Hull/Bottom

Vessels Name Country LOA/Beam ConversionPeriod

Main Work

MT Ce-Shilla Greece 247M/42.7M 120days Single Hull/Bottom

to Double

Hull/Bottom


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Vessels confirmed and to be converted in 2005


Period

Main Work

MT Sea Giant UAE 231M/44M 120days Single Hull/Bottom

to Double

Hull/Bottom


Period

Main Work

MT Sea Victory UAE 163.5M/23M 75days Single Hull/Bottom

to DoubleHull/Bottom


Period

Main Work

MT Milagro UAE 219.9M/35.2

M

60days Single Bottom to

Double Bottom


Period

Main Work

MT Fujigawa Singapore 149M/22.8M 45days Single Bottom to

Double Bottom


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Conversion Pictures

Block Fabrication


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Conversion Pictures

Block Fabrication


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Conversion Pictures

Pre-fabricated Blocks


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Conversion Pictures

Deck access opening


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Conversion Pictures

Lowering Blocks into

Tank


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Conversion Pictures

Lowering Block into

Tank

C i Pi


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Conversion Pictures

Block installation

C i Pi t


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Conversion Pictures

Block installation on

Bottom

C i Pi t


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Conversion Pictures

Block installation on

Bottom

C i Pi t


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Conversion Pictures

Side Block installation


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THANK YOU !

Tanker Double Hull Conversion

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