Author Archive: beatcorrosion
beatcorrosion
October 18, 2015
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…
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beatcorrosion
October 18, 2015
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…
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beatcorrosion
October 18, 2015
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…
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beatcorrosion
October 15, 2015
-A Digest from NACE International Publication 6A100 Coating Used in Conjunction with Cathodic Protection Key Points for Protective Coatings Corrosion prevention by protective coatings is due to their dielectric properties; The dielectric properties will be deteriorated during the service due to…
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beatcorrosion
October 5, 2015
Organic coatings may provide corrosion prevention by controlling one or multiple rate controlling steps in corrosion reaction. These may include: Establish a barrier for water transportation; Establish a barrier for oxygen or other gaseous corrodants diffusion; An effective electrical resistance…
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