Offshore Ship Repairs
The shipyard performs hull repairs and welding, and repairs to engines, machinery and auxiliary equipment on offshore ships. Services also include piping and hydraulics, electrical equipment and automation, cleaning, painting and technical inspection. The repair scope, work location and acceptance requirements are agreed with the customer for each ship.
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Repair of Jack-Up Rigs Supported on Their Legs Alongside the Quay
Jack-Up rigs are positioned alongside the quay on their own legs bearing on the surveyed and cleared seabed. The seabed was prepared for this arrangement. A dedicated area is provided for repairs to leg jacking mechanisms. Siting conditions and repair scope are agreed for each project.
Approved Location for Jack-Up Rigs
Prepared seabed area: 200 × 200 m. The surveys, charts and documents supporting Jack-Up rig positioning are listed below. Approval conditions and limitations are set out in the relevant reports and certificates.
| Parameter | Value |
|---|---|
| Seabed prepared for jack-up rigs | 200 × 200 m |
| Seabed survey | Completed / Report issued |
| Bathymetric survey | Completed / Report issued |
| Bathymetric chart with Easting/Northing coordinates | Chart prepared |
| Geotechnical and geophysical investigations | Completed / Report issued |
| No Debris Survey | Completed / Report issued |
| Leg Penetration Assessment (LPA) | Report issued / Assessment included in CoA |
| Berthing plan | Plan issued / Included in CoA |
| Site-specific location approval (CoA) | Approved / Certificate issued |
Open original 8192 × 4608
Approved Berthing Plan
Berthing plan for two Jack-Up rigs. Drawing 20175/P001, revision A3 dated 14 October 2026.
The drawing content is preserved; only the resolution and file size have been reduced.
Dedicated Berth for Jack-Up Rigs
ASABA Shipyard has prepared a dedicated 180-metre berth to accommodate and repair jack-up drilling rigs. Water and electricity connections, wastewater reception facilities and the necessary shoreside infrastructure are in place.
The berth is equipped with Yokohama-type pneumatic fenders measuring 4.5 metres in diameter and 10 metres in length, as well as access gangways. A crane with a lifting capacity of 300 tonnes is available for cargo handling, repair and installation work.
The firefighting infrastructure includes two independent fire pump stations. A shipyard-owned tug with the Fire Fighting Ship 1 classification remains on standby near the berth, equipped for firefighting with a water delivery capacity of 2,400 m³/h and a Water Spray system.
A fast rescue boat is stationed at the berth on 24/7 standby, ready for rapid deployment at any time of day or night.
Office buildings and spaces are provided on the shipyard premises for customer representatives.
Quay and Firefighting Infrastructure
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Certified Access Gangways — 2 × 50 m
For personnel access during repairs to drilling rigs, ASABA has two aluminium access gangways, each 50 m long. Each gangway has its own ClassNK certificate and consists of five 10 m sections.
| Parameter for Each Gangway | Specification |
|---|---|
| Length | 50 m |
| Structural width | 1.5 m |
| Structural height | 3.5 m |
| Section arrangement | 5 × 10 m |
| Load-bearing structure material | Aluminium alloy (5A05) LF5 |
| Steps / decking | Fixed steps; fibreglass |
| Operating angle per manufacturer's documentation | 0–30° |
Access Gangways for Drilling Rigs
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Dedicated Shoreside Area — 10,000 m²
An open area is dedicated to equipment storage and repair work for drilling rigs. Equipment layout, working areas and yard logistics are agreed with the project team.
Scope of Services
- Hull structures and welding.
- Machinery, engines and auxiliary equipment.
- Piping, electrical equipment and control systems.
- Surface preparation and protective coatings.
- Non-destructive testing within the scope of applicable approvals.
Project-Specific Conditions
The scope of work, equipment availability, work location and classification society requirements are agreed for each rig. Management system certificates do not constitute universal authorisation for all types of RIGS repairs.
Technical parameters are provided for preliminary assessment. Suitability for a particular vessel, equipment item and project is confirmed by the shipyard when agreeing the work.
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