Construction and Fabrication

SREC fabricates large-scale steel structures for the offshore oil and gas and offshore wind industries: wellhead platform jackets, pin piles and offshore wind foundation piles, topsides and connecting bridges, process modules and equipment skids, piping spools and subsea tie-in spools. Every product line below is fabricated, inspected, coated and loaded out under a single SREC scope, to the client’s approved drawings, welding procedures and inspection and test plan, with dimensional control at each hold point and one accountable team from award to load-out.

Group fabrication capacity

2,000 MT piles per month	15,000 mm max. pile diameter	197 mm max. wall thickness
750 T crane capacity	3 load-out jetties	240 × 320 m assembly area

Partner yard — Ba Son Phu My. Capacities on this page are those of SRE Group together with our partner yard. The yard, jetties and floating docks are owned and operated by Ba Son Corporation (BASON); SREC executes projects at the Ba Son Phu My yard under a long-term framework agreement with BASON.

Heavy lift	Cranes up to 750 T · 1,000+ items of fabrication equipment
Assembly area	Mobile fabrication line, 240 m × 320 m open assembly area
Waterfront	3 jetties · direct load-out to barge · floating docks 8,850 T / 8,500 T / 2,000 T · shiplift 4,500 T
Workshops	Hull, mechanical, piping, E&I, carpentry, engine, storage

SREC management system: ISO 9001:2015 · ISO 14001:2015 · ISO 45001:2018

1. Jackets

Wellhead platform jackets under construction on the assembly area

Wellhead platform and process platform jackets, from roll-up of the individual frames through to full assembly, weight control and load-out.

Capacity

Output per jacket	200 – 250 MT / month
Annual capacity	12 jackets (1,000 MT) per year
Manpower mobilised	600
Load-out	Skidding or SPMT, direct to barge at the quay

Scope of work

• Node fabrication — profiling, fit-up and welding of tubular joints to API RP 2A / AWS D1.1
• Frame roll-up, jacket erection and closure on the assembly area
• Dimensional and weight control at every erection hold point
• Anodes, boat landings, risers, J-tubes, walkways and appurtenances
• Blasting, painting and coating to the project specification
• Skidding, SPMT transfer, load-out and welded sea-fastening design and installation

2. Piles

Pin piles laid out and prepared for load-out

Large-diameter pin piles, skirt piles and offshore wind foundation piles — rolled and welded in-house from plate, with full traceability from mill certificate to weld map.

Capacity

Output	2,000 MT / month
Maximum diameter	15,000 mm
Maximum wall thickness	197 mm
Manpower mobilised	200
Standard	API 2B, rolled and welded from plate

Scope of work

• Plate cutting, bevelling and rolling of cans on CNC and rolling machines
• Longitudinal and circumferential seam welding to qualified WPS
• 100% NDT of circumferential seams — UT / RT / MT / PT
• Pile string assembly, driving shoe and pile head fabrication
• Internal and external coating, end protection and preservation
• Roll-out, load-out and sea-fastening for open-sea tow

3. Topsides and bridges

Topside under construction at the yard

Wellhead platform topsides, deck structures, connecting bridges and living quarter structures, delivered as complete integrated packages.

Capacity

Output	200 MT / month
Annual capacity	2 topsides (approx. 1,000 MT) per year
Manpower mobilised	300
Delivery	Structure, coating, pre-commissioning and load-out in one scope

Scope of work

• Primary and secondary structural steel, deck plating and grating
• Stairs, handrails, walkways, lifting points and equipment supports
• Piping, electrical and instrumentation supports and penetrations
• Deck-by-deck erection with survey control at each stage
• Blasting, painting, insulation and passive fire protection
• Pre-commissioning, weighing and load-out

4. Modules and skids

Process skid module with piping and vessels in the workshop

Process modules, equipment skids and pre-assembled units built and tested in the workshop so that offshore hook-up is reduced to connection and commissioning.

Capacity

Structural output	1,000 MT / month
Piping output	15,000 dia-inch / month
Testing	Hydrotest, flushing and functional testing before dispatch

Scope of work

• Skid frame and module structural fabrication
• Equipment setting, alignment and grouting
• Interconnecting piping, valves and instrumentation
• Electrical, instrumentation and cable tray installation
• Hydrotest, flushing, functional testing and pre-commissioning
• Transport frame design, packing and sea-fastening

5. Piping spools

Piping spool fabrication in the pipe shop – flanges, elbows, reducers and marked spools

Process and utility piping spools fabricated from seamless pipe to ASME B31.3, in carbon steel, alloy and stainless grades, complete with pipe supports.

Capacity

Output	15,000 dia-inch / month
Code	ASME B31.3
Quality	Weld repair rate below 2% by joint
Materials	Carbon steel, alloy and stainless steel

Scope of work

• Spool breakdown from IFC isometrics, MTO and dia-inch take-off
• Material receiving, MTC check, colour coding and controlled storage
• Cutting and bevelling to the WPS joint geometry
• Fit-up and dimensional check — inspection hold point
• Preheat and welding by welders qualified to ASME B31.3
• NDE — VT / RT / UT / MT / PT; PWHT and hardness testing where required
• Hydrostatic test, flushing, painting, coating and preservation
• Spool marking, MRB compilation, packing and dispatch

6. Subsea tie-in spools

Subsea tie-in spools laid out on the quay

Subsea tie-in spools including bend and flange assemblies, fabricated to the as-built survey dimensions between the pipeline end and the platform riser. Tonnage is rarely the constraint here — the difficulty is precision: every spool is a one-off built to measured seabed geometry, with no room to adjust offshore. What SREC brings to it is the people and the equipment to absorb a very large batch without losing that tolerance: a single campaign of 18 tie-in spools has been fabricated, tested and loaded out from the yard, an unusually large volume for this product type.

Capacity

Typical batch	Small quantities per project — defined by precision, not tonnage
Demonstrated batch	Up to 18 tie-in spools fabricated and loaded out in a single campaign
Fabrication basis	As-built metrology data, hub-to-hub tolerance control
Components	Induction bends, forged fittings, subsea connectors and hubs
Testing	Hydrotest, flooding, cleaning and gauging
Delivery	Coating, sea-fastening, load-out and offshore installation support

Scope of work

• Fabrication to as-built metrology data, with tight tolerance on hub-to-hub dimensions
• Induction bends, forged fittings and subsea connector / hub assembly
• Welding to qualified WPS with full NDT of every joint
• Hydrotest, flooding, cleaning and gauging
• Coating, field joint coating and cathodic protection anodes
• Dimensional control survey, sea-fastening, load-out and offshore installation support