Global Lines proudly delivers specialized industrial solutions within the oil and gas sector through a powerful, strategic Joint Venture with our international technical partner, Shandong Kelinruier Pipeline Engineering Co., Ltd. (China). This synergy seamlessly integrates our robust local operational infrastructure in Oman with world-class Chinese engineering expertise and advanced technologies.

We provide comprehensive oil and gas pipeline maintenance solutions engineered to secure operational safety, optimize system reliability, and guarantee long-term performance. Every project is executed by a highly qualified joint technical workforce utilizing state-of-the-art equipment, specialized methodologies, and the highest global industry benchmarks.

Our Advanced Trenchless Technologies & Services:

- Concentric Diameter Reduction HDPE Lining Technology (Up to 35 MPa): Thermal-mechanical reduction to insert heavy-duty HDPE lining tightly inside steel oil and gas pipelines to resist extreme corrosion and high pressures.

- Intelligent Robot Inspection Camera Systems & Deep Pipeline Cleaning: Independently developed crawling robots traveling over 1,000 meters continuous distance to transmit live HD feeds and map internal defects within oil and gas pipeline networks.

- High-Pressure Self-Bearing Flexible Hose Lining & Ring Repair: Advanced technical execution for long-distance flexible hose deployment and localized structural defect rehabilitation using stainless steel expansion rings.

- Anti-Corrosive Hybrid Repair Technology of Nano-Ceramics Lining (Up to 250°C): Advanced polymer-ceramic multi-patented shield providing complete prevention against aggressive H2S or chemical environments in oil and gas production fields.

Oil & Gas Pipeline Maintenance Services

Our Track Record & Major Projects

1. Oil & Gas Mega Pipeline Projects

Comprehensive trenchless rehabilitation and maintenance executed for elite international energy giants, showcasing deep technical expertise in carbon-steel hydrocarbon transmission line protection:

- Ahdeb Oilfield Project (Iraq): Lined 400 km of steel pipelines (DN150–DN450) for Oasis Petroleum under an 11 MPa working pressure [source: 1].

- Gangcang Transmission Project: Managed hazard elimination and trenchless maintenance for 82.7 km of high-risk steel natural gas pipelines (DN500) under 0.7–0.8 MPa pressure.

2. Extreme High-Pressure & Field Water Injection Projects

Specialized engineering deployment designed to withstand extreme hydraulic stresses and aggressive internal chemical environments in production fields:

- Chevron Corporation Gas Blocks (China): Successfully lined 10 km of steel water reinjection lines operating under an extreme 19.8 MPa working pressure to completely eliminate aggressive hydrogen sulfide (H2S) corrosion.

3. Marine Environment & Industrial Desalination Fluid Projects

Advanced technical protection and structural lining utilizing specialized heavy-duty composite liners inside large-diameter water supply infrastructure:

- Shell Oil Company Majnoon Field (Iraq): Rehabilitated and lined 26 km of heavy-duty steel river-water transport lines (DN300) under 4.75 MPa.

- Singapore Utilities: Lined and modernized two parallel underground sea-water supply pipelines totaling 10 km (DN800) against severe marine and desalination corrosion.

Quality, Safety & Environmental Compliance

Global Lines manages and executes all trenchless pipeline maintenance and lining operations in strict compliance with the highest global safety, health, and engineering standards, fully backed by the certified field capabilities and credentials of our international technical partner:

- Technical Partner Qualifications: All field solutions and engineering executions are fully supported by the official government licenses and rigorous industrial permits granted to our technical partner, Shandong Kelinruier.

- ISO 9001 Standards: Implementing their certified Quality Management System to guarantee high-precision technical delivery and absolute material compliance in the field.

- ISO 14001 Standards: Adhering to the certified Environmental Management System dedicated to zero fluid leakage, minimizing ecological footprint, and eliminating civil excavation waste.

- ISO 45001 Standards: Enforcing the certified Occupational Health & Safety Management System protocols to protect the field workforce and client facilities under strict safety frameworks.

- JSRS Compliance: Global Lines is fully registered, verified, and active on Oman's Joint Supplier Registration System platform, ensuring total local compliance for the energy and infrastructure sectors.

Quality, Safety & Environmental Compliance

Location Details

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