Fabrication & Welding Works for Oil & Gas Projects in Nigeria

Certified welds. Pressure-rated vessels. Structural integrity guaranteed.

At Harvel Engineering & Energy Ltd, we deliver Fabrication & Welding Works that meet the rigorous demands of Nigeria’s oil & gas sector. Whether you're building skids, assembling structural steel, or fabricating pressure-rated vessels, our certified teams ensure every weld holds up to scrutiny—and every structure performs under pressure.

[image of Harvel welders performing coded welding on a pressure vessel in a certified workshop]

Comprehensive Fabrication & Welding Capabilities

Our certified fabrication facility delivers precision-engineered components across the complete spectrum of oil and gas infrastructure requirements:

Pressure Vessel Manufacturing

ASME VIII Division 1 & 2 certified (U-stamp) for separators, coalescers, and bullet tanks
Wall thickness capabilities up to 120mm for high-pressure applications
Complete testing and documentation for code compliance

Storage Tank Construction

API 650/653 certified tanks with fixed roof, floating roof, and internal floating cover designs
Manufacturing capacity for tanks up to 75-meter diameter
Field erection and modification services available

Offshore & Subsea Equipment

DNV 2.7-1 certified offshore modules and skids for pump, compressor, and metering packages
Specialized subsea manifolds, PLETs, and riser clamps in duplex, super-duplex, and Inconel 625 overlay materials
Complete pressure testing and certification for deepwater applications

Process Piping Systems

Pipe spool fabrication from ½-inch to 60-inch diameter
Material expertise across carbon steel, low-temperature, stainless, chrome, and duplex alloys
Schedule range from 5 to XXS for all pressure requirements

Structural Steel Fabrication

Pipe racks, portals, technical buildings, and flare stacks up to 70-meter height
Complete structural packages with detailed engineering and erection support
Seismic and wind load calculations for Nigerian environmental conditions

Specialized Welding Services

On-site automatic orbital GTAW, SMAW, FCAW, GMAW, and SAW capabilities
API 5CT casing and conductor welding (J55/K55, PSL-2, sour service rated)
Hot taps, fittings, and tie-in connections from ANSI 150 to 2,500# pressure ratings

[image of Harvel technicians assembling a modular skid with integrated piping and instrumentation]

Why Chose Harvel?

Global OEM Partnerships – We fabricate and integrate systems from Victaulic, Flowserve, Grundfos, and other Tier 1 vendors.
ISO-Certified Workshops – In-house fabrication facilities with QA/QC protocols, NDT labs, and material traceability.
Full EPCM Delivery – From design to installation, we manage every phase with precision and accountability.
Marine & Remote Logistics – We mobilize to coastal terminals, swamp locations, and inland depots with speed and safety.

[image of Harvel-branded equipment being loaded for delivery to a remote oilfield site]

Built for Compliance & Longevity

Fabrication in oil & gas isn’t just about metal—it’s about performance, safety, and lifecycle value. Harvel designs and welds with corrosion resistance, load-bearing integrity, and regulatory alignment in mind.

Explore our fabrication philosophy in [Building Pressure-Rated Infrastructure for Oil & Gas Operations].

Results That Matter

100% weld pass rate across recent QA/QC inspections
35% faster fabrication timelines through modular workflows
Zero non-compliance findings in DPR and ASME audits

[image of completed structural steel assembly at a midstream facility with Harvel-installed components]

Let’s Fabricate with Precision

Whether you're launching a new facility or upgrading existing infrastructure, Harvel is ready to deliver. Our Fabrication & Welding Works team collaborates with your project engineers, QA/QC teams, and OEM vendors to ensure safe, compliant, and high-performing outcomes.

Let’s schedule a fabrication scope review and align on your technical requirements.

Fabrication & Welding