Construction and Fabrication

SREC manufactures large-scale steel structures for the offshore oil & gas and offshore wind industries: wellhead jacket platforms, wind turbine piles and foundation piles, topsides and bridges, process modules and equipment skids, process piping, and subsea spool assemblies. Every product line below is fabricated, inspected, coated, and load-out under SREC's single scope of responsibility, following customer-approved drawings, welding procedures, and inspection & test plans, with dimension control at every hold point and a single point of responsibility from contract award to load-out.

Group Fabrication Capacity

2,000 tons piles per month	15,000 mm maximum pile diameter	197 mm maximum wall thickness
750 tons crane lifting capacity	3 load-out quays	240 × 320 m assembly yard

Partner Yard — Ba Son Phu My. The capacities listed on this page represent the capabilities of SRE Group together with the partner yard. The yard, quays, 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.

Lifting Capacity	Cranes up to 750 tons · over 1,000 fabrication equipment items
Assembly Area	Mobile fabrication lines, 240 m × 320 m open assembly yard
Quays	3 piers · direct barge load-out · floating docks 8,850 T / 8,500 T / 2,000 T · shiplift 4,500 T
Workshops	Hull, mechanical, piping, electrical & instrumentation, carpentry, utility, warehouses

SREC Management Systems: ISO 9001:2015 · ISO 14001:2015 · ISO 45001:2018

1. Jackets

Wellhead jacket platform erected at the fabrication yard

Wellhead and process jacket platforms, from flat frame fabrication to complete erection, weight control, and load-out.

Capacity

Output per Jacket	200 – 250 tons/month
Annual Capacity	12 jackets (1,000 tons)/year
Mobilized Workforce	600 personnel
Load-out	Skidding or SPMT, directly onto barges at the quay

Scope of Work

• Node fabrication — beveling, assembly, and welding of tubular nodes per API RP 2A / AWS D1.1
• Flat frame erection, jacket assembly, and closure on the assembly yard
• Dimensional and weight control at every assembly hold point
• Anodes, boat landings, risers, J-tubes, walkways, and miscellaneous appurtenances
• Surface preparation, painting, and protective coating per project specifications
• Skidding, SPMT transport, load-out, and sea-fastening design & engineering

2. Piles

Piles arranged at the yard preparing for load-out

Large-diameter piles, skirt piles, and offshore wind foundation piles — rolled and welded in-house from steel plates, with full traceability from material certificates to weld maps.

Capacity

Capacity	2,000 tons/month
Maximum Diameter	15,000 mm
Maximum Thickness	197 mm
Mobilized Workforce	200 personnel
Standard	API 2B, rolled and welded from steel plates

Scope of Work

• Cutting, beveling, and rolling of can sections using CNC and plate rolling machines
• Longitudinal and circumferential seam welding per approved WPS
• 100% Non-Destructive Examination (NDE) of circumferential welds — UT / RT / MT / PT
• Pile section assembly, driving tip, and driving head fabrication
• Internal and external coating, pipe end protection, and preservation
• Pile rolling, load-out, and sea-fastening for marine towing

3. Topsides & Bridges

Topside under erection at the yard

Wellhead platform topsides, deck structures, bridges, and living quarters — delivered on a turnkey basis.

Capacity

Capacity	200 tons/month
Annual Capacity	02 topsides (approx. 1,000 tons)/year
Mobilized Workforce	300 personnel
Delivery	Structure, coating, pre-commissioning, and load-out within a single package

Scope of Work

• Primary and secondary structural steel, deck plating, and grating
• Stairways, handrails, walkways, lifting lugs, and equipment supports
• Supports and penetrations for piping, electrical, and instrumentation
• Deck-by-deck erection with dimensional survey at each step
• Surface preparation, painting, insulation, and passive fire protection (PFP)
• Pre-commissioning, weighing, and load-out

4. Modules & Skids

Process skid with piping and equipment in the workshop

Process modules, equipment skids, and pre-assembled units are fabricated and tested right in the workshop, ensuring that offshore hook-up work is reduced to simple connection and pre-commissioning.

Capacity

Structural Capacity	1,000 tons/month
Piping Capacity	15,000 dia-inches/month
Testing	Pressure testing, flushing, and functional testing prior to ex-works delivery

Scope of Work

• Skid frame and modular structure fabrication
• Equipment setting, alignment, and grouting
• Interconnecting piping, valves, and instrumentation
• Electrical, instrumentation, and cable tray installation
• Pressure testing, flushing, functional testing, and pre-commissioning
• Transport frame design, packaging, and sea-fastening

5. Piping Spools

Process piping arranged at the yard prior to installation

Process piping and utility piping fabricated from seamless pipes per ASME B31.3, using carbon steel, alloy steel, and stainless steel materials, complete with pipe supports.

Capacity

Capacity	15,000 dia-inches/month
Standard	ASME B31.3
Quality	Weld repair rate below 2% of total joints
Materials	Carbon steel, alloy steel, stainless steel

Scope of Work

• Spool takeoff from IFC isometric drawings, material take-off (MTO), and dia-inch calculation
• Material receiving, MTC verification, color coding, and controlled warehouse storage
• Cutting and beveling according to WPS weld joint geometry
• Fit-up and dimensional inspection — hold points for acceptance
• Preheating and welding performed by ASME B31.3 certified welders
• NDE inspection — VT / RT / UT / MT / PT; Post-Weld Heat Treatment (PWHT) and hardness testing when required
• Pressure testing, flushing, coating, and preservation
• Spool marking, MRB compilation, packaging, and delivery

6. Subsea Tie-in Spools

Subsea tie-in spools arranged at the quay

Subsea tie-in spools including induction bends and flanges, fabricated based on metrology data between pipeline ends and platform risers. While the tonnage for this product type is typically low, the real challenge lies in high precision: each spool is a custom-made item built to real seabed geometry, leaving no room for adjustment once offshore. SREC's strength lies in having the workforce and equipment capable of handling large volumes while maintaining strict tolerances — a single batch of 18 subsea tie-in spools was fully fabricated, tested, and loaded out at the yard, representing an exceptionally large scale compared to industry standards for this product type.

Capacity

Typical Volume	Low quantity per project — governed by precision, not tonnage
Track Record	Up to 18 subsea tie-in spools fabricated and loaded out in a single batch
Fabrication Basis	As-built metrology data, tolerance control between hub ends
Components	Induction bends, forged fittings, connectors, and subsea hubs
Testing	Pressure testing, filling, cleaning, and gauging inspection
Delivery	Coating, sea-fastening, load-out, and offshore installation support

Scope of Work

• Fabrication based on metrology data with tight tolerances between hub ends
• Induction bending, forged fittings, and subsea connector assembly
• Welding per approved WPS with 100% NDT inspection of all welds
• Pressure testing, filling, cleaning, and gauging inspection
• Coating, field joint coating, and sacrificial anode installation
• Dimensional survey, sea-fastening, load-out, and offshore installation support