Corrosion Management
Corrosion Issue in Well Production
Corrosion risk for gas condensate wells 1) Higher bottom hole temperature may lead to water condensation: The accompanied water vapour is likely to dew out along the flow path 2) Higher CO2 / H2S partial pressure lead to more aggressive…
Read more
Downhole Corrosion Factors and Chemical Mitigation
Downhole Corrosion Factors 1) Acidic corrodants: CO2, H2S in drilling fluid. 2) Solids: High solids content in drilling fluid prompts the erosion and flow assisted corrosion. 3) Oxygenated conditions: The drilling fluid is often oxygenated during drilling process. 4) Microbial: Microbial…
Read more
Sacrificial Anode Cathodic Protection (SACP) System Design Consideration
Information gathering Compliance Requirements Local legislation Applicable industrial standards Company engineering practice Supplemental requirements Service Environments Soil River Offshore Concrete Electrolyte Characterisation Resistivity Corrosivitiy, e.g. temperature Chemical composition, typically Chloride, TDS Microbial status Cathodic Protection System Factors Structure materials and…
Read more
Solid State Decoupler (SSD) in Cathodic Protection
Starting from the 90s, the AC interference attracts more attention of corrosion engineers due to the intensive use of very high electrical resistance coating of pipelines as well as sharing the Right of Way (ROW) between power transmission line with pipeline,…
Read more