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Chemicals Jul 22, 2026 9 min read
Oilfield Corrosion Inhibitor Guide: Selection, Dosage & Documentation
A technical guide to selecting corrosion inhibitors for oil pipelines based on CO₂, H₂S, water cut, and flow conditions.
James Wilson
Technical Director
Internal pipeline corrosion driven by CO₂, H₂S, and high water cuts is a major threat to asset integrity in the oil and gas sector. Selecting the right film-forming corrosion inhibitor is essential to prevent leaks, maintain production, and ensure safety.
Selection Criteria
Corrosion inhibitors are not one-size-fits-all. The selection process must account for:
- Fluid Composition: Water cut, salinity, CO₂ and H₂S concentrations.
- Flow Dynamics: Flow regime, velocity, and shear stress.
- Temperature & Pressure: Bottom-hole and surface conditions.
- Compatibility: Interaction with demulsifiers, scale inhibitors, and biocides.
Documentation Required
For compliance and safe handling, buyers must ensure the supplier provides:
- • Material Safety Data Sheet (MSDS)
- • Technical Data Sheet (TDS)
- • Certificate of Analysis (COA) per batch
- • Compatibility test reports
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