Oil & Gas Pipes

Oil and gas pipework fails from the inside: corrosion from produced water and sulphides, erosion from sand, scale build-up and microbial attack. Applied Pipeline Services provides several approved lining systems for oil and gas service, from gathering lines and process pipework to firewater, utility and drainage networks. The choice of liner depends on the pipe, the operating pressure and the layout, and every recommendation follows a condition survey.

Lining options for hydrocarbon service

• Reinforced CIPP pressure liners with epoxy or vinyl-ester resin, designed to ASTM F1216 and F1743 for operating pressures up to 100 bar and elevated temperatures. A jointless structural pipe inside the old one.
• Spray-applied epoxy and polyurea for large-diameter and man-entry lines with internal corrosion but sound structure.
• Tight-fit polyethylene liners for water-injection, produced-water and utility mains.
• Point repairs (patch liners and stainless sleeves) for localised defects on drainage and oily-water sewers.

Why operators line rather than replace

Replacement inside a live plant means hot work, permits, scaffolding, shutdown of adjacent systems and excavation through classified areas. Lining is a cold process through existing flanges and openings. It is scheduled into a turnaround, completed in shifts, pressure-tested and verified by camera before the line is handed back. The cost is typically half of replacement and the disruption a small fraction.

Engineering and verification

Each project begins with CCTV or laser survey, review of the service conditions (pressure, temperature, fluid chemistry, flow) and a liner design for that duty. Installation is followed by hydrostatic testing, post-cure CCTV, and a documented quality record. Our teams hold the HSE credentials required to work on ARAMCO and other operators' sites in Saudi Arabia and the UAE, and our reference list in the sector includes ARAMCO, SEPCO and industrial clients across both countries.

Typical scopes

Corroded carbon-steel process and utility lines; firewater rings and hydrant loops; cooling-water and effluent networks; oily-water sewers beneath plant areas; and pipelines beneath tank farms, roads and buildings where excavation is prohibited. If a corroded line is on your next turnaround list, ask us for a lining assessment before it is cut out.