Midstream Engineering
Moving Energy Across Continents
Midstream Engineering
Pipeline & Infrastructure
Our Pipeline & Infrastructure division engineers, constructs and maintains cross-country pipeline systems that form the backbone of energy supply chains. We deliver complete EPC solutions from FEED through to commissioning.
Al Nassar's pipeline projects span onshore trunklines, subsea flowlines, gathering systems, compressor stations, metering facilities and pumping stations — engineered to the highest international pipeline codes.
Capabilities
What We Deliver
FEED & Engineering
Front-end engineering, route surveys, material selection and detailed design.
Pipeline Construction
Mainline welding, coating, lowering-in and hydrotesting to API & ISO standards.
Compressor Stations
Gas compression facilities for trunkline and gathering systems.
Metering & SCADA
Custody transfer metering and supervisory control systems.
Subsea Pipelines
Offshore flowlines, risers and umbilicals for deepwater developments.
Integrity Management
In-line inspection, corrosion monitoring and pipeline rehabilitation.
8,000+km Constructed
40+Projects
12Countries
DN 1400Max Diameter
Why Al Nassar
Our Differentiators
Route Optimisation
GIS-based terrain analysis, geohazard assessment and environmental constraint mapping for optimal corridor selection.
Material Excellence
Carbon steel, CRA and composite pipe selection matched to fluid chemistry, pressure class and design life.
SCADA Integration
End-to-end supervisory control with remote valve actuation, leak detection and real-time flow monitoring.
Integrity Management
Intelligent pigging, corrosion inhibition and cathodic protection programmes for operational life extension.
Methodology
How We Work
FEED & Basis of Design
Hydraulic modelling, route surveys, soil investigations and regulatory engagement to establish design basis.
Detailed Engineering
Pipe stress analysis, support design, crossing designs and complete IFC drawing package.
Procurement & Logistics
Mill inspection, coating verification, pipe tracking and logistics management to remote sites.
Construction
Mainline welding, trenching, lowering-in, backfill, road crossings and HDD bores.
Commissioning & Handover
Hydrotest, dewatering, drying, chemical cleaning and gas introduction with O&M documentation.
Standards & Certifications
Built to International Standards
Every Al Nassar project is executed under internationally recognised codes, standards and management systems. Our certification portfolio reflects a commitment to quality, safety and environmental stewardship that clients and regulators trust.
ASME B31.4ASME B31.8DNV-ST-F101ISO 9001ISO 14001
Technology
Tools & Technologies
HDD & Directional Boring
Trenchless installation under rivers, roads and sensitive areas.
Automated Girth Welding
GMAW and SAW systems for consistent quality in high-volume welding.
Subsea Pipe Lay
S-lay and J-lay operations from DP2 pipe-lay vessels.
3LPE / FBE Coating
Factory and field joint coating to AS/NZS 3992 and ISO 21809.
Pigging Systems
MFL and geometry pigs for annual baseline and anomaly detection.
Hot-Tap & Line-Stop
Pressurised tie-ins and flow isolation without system shutdown.
Get Started
Planning a Pipeline Project?
Request a routing study or early-stage FEED proposal from our midstream engineers.
Other Services