Corrosion Protection

Stress Corrosion Cracking (SCC) Susceptibility Screening Enhancement

Stress Corrosion Cracking (SCC) Susceptibility Screening Enhancement
Stress Corrosion Cracking (SCC) Susceptibility Screening Enhancement
Stress Corrosion Cracking (SCC) is a wel l- known threat to the integrity of oil and gas pipelines. SCC is a damage mechanism that typically results in axial cracks on pipelines due to simultaneous action of tensile stress, potent environment (soil, coating, electrolyte etc.), and the pipeline material (poor microstructure). Small cracks are in...

Advanced Corrosion Growth Modeling In Pipelines For Repair Optimization

Advanced Corrosion Growth Modeling In Pipelines For Repair Optimization
Advanced Corrosion Growth Modeling In Pipelines For Repair Optimization
Saudi Aramco operates a massive network to enable its position as world leading hydrocarbon producer, approximately 371 downstream cross-country pipelines with 446-sections, totaling 23,878 kilometers as at January 2020. Typical pipelines range in diameter from 4-inches to 56-inches, the average length of the pipelines ranges from less than one...

Lessons Learned on 20 years of challenges to internal corrosion protection of subsea pipelines-corrosion inhibitor or pH stabilization?

Lessons Learned on 20 years of challenges to internal corrosion protection of subsea pipelines-corrosion inhibitor or pH stabilization?
Lessons Learned on 20 years of challenges to internal corrosion protection of subsea pipelines-corrosion inhibitor or pH stabilization?
The three phase fluid of the massive South Pars reservoir under the Persian Gulf, is transmitted 100Km to onshore facilities via numerous 32” API 5L pipelines. The wet sour fluid cont ains 0.5 mol% of H2S and 1.7 mol% of CO2 which forms a hostile environment to carbon steel. Hence, as per form er laboratory researches at design stag e in about 20...

Quality control in the passive corrosion protection – the coating inspector

DENSO / Open Grid Europe
DENSO / Open Grid Europe
A highly sophisticated and well coordinated active and passive corrosion protection is mandatory for a long-lasting integrity and an error-free operation of a new pipeline. Furthermore, importance from an economic point of view it is of essential importance for the achievement of the target lifetime. The passive corrosion protection includes all...

Condition Assessment for Optimizing Gasunie’s Network Improvement Program

DNV GL & Gasunie Transport Services
DNV GL & Gasunie Transport Services
The 40 bar regional gas transportation network of Gasunie Transport Services (GTS) consists of, in addition to pipelines, valve stations, pressure regulating and metering stations and gas receiving stations. The majority of these stations have been built in the period 1960-1980. This raises questions on the remaining technical life-time of these...