NELSON has extensive experience in the permitting, design, construction management, and start-up of complex oil and gas facilities, both offshore and onshore. From multi-platform offshore developments to high-pressure, high-sulfur well-streams and heavy crude operations, NELSON delivers fully integrated, multidisciplinary engineering solutions built to perform under demanding operational and environmental conditions.
Upstream: Engineering support for exploration and production operations—onshore and offshore. We design production facilities, well-stream handling systems, and complex field developments, with deep experience in high-pressure, high-temperature, and corrosive environments.
Midstream: Reliable infrastructure that moves and processes product safely and efficiently. Our services include pipelines, compressor and pumping stations, gathering systems, and treatment facilities engineered for performance, compliance, and long-term durability.
Downstream: Engineering and project management for refining, petrochemical, and power generation facilities. We support plant expansions, process upgrades, and facility improvements that enhance safety, reduce risk, and improve operational performance.
What We Deliver
- Offshore drilling and production platform design
- Floating production systems (FPSO, TLP, barge-mounted systems)
- Subsea tiebacks to fixed and floating facilities
- Onshore wellhead, gathering, and treatment facilities
- Compressor and pumping station design
- Pipeline systems and transshipment facilities
- Secondary and tertiary recovery facilities
- Production skids and modular processing systems
- Quarters and support facility design
- Construction management and start-up support
Key Capabilities
- Design of large multi-platform offshore complexes
- Heavy crude facility design (down to API 11)
- Sour service design (up to 25% H₂S, 10% CO₂)
- High-pressure wellstream systems (up to 25,000 PSIG SITP)
- Gas and diesel engine generators (single and dual-fuel)
- High-voltage generation and distribution (34.5KV, 13.8KV, 4.16KV)
- Emergency power and UPS systems (rotary and electronic)
Start Your Project with NELSON
Partner with a trusted engineering and architectural leader delivering innovative, reliable, and safe solutions.
