Vanconol® ET-1024 Reinjection Water Corrosion Inhibitor
Product Overview
This product is a new-generation, highly efficient, water-soluble composite corrosion inhibitor developed for the corrosion and scaling challenges of oilfield reinjection water systems. Through the systematic formulation of imidazoline derivatives with synergists and biocides, it delivers high corrosion inhibition performance and provides effective anti-corrosion protection for equipment and pipelines in reinjection water systems.
Chemical Composition
Water-soluble imidazoline, synergists, specialty surfactants and other compounds.
Physical and Chemical Properties
| Item | Specification / Description |
|---|---|
| Appearance | Pale yellow to brownish-yellow clear liquid |
| Density (20 °C, g/cm³) | 1.10 – 1.15 |
| pH (1% aqueous solution) | 6.0 – 8.0 |
| Water solubility | Fully water-soluble; suitable for direct dosing and automatic metering-pump addition |
Core Advantages and Performance Features
- High corrosion inhibition performance: at a dosage of 30 ppm, static coupon tests with N80 coupons at 50 °C for 7 consecutive days gave a corrosion inhibition efficiency of 94.50%, with no significant change in coupon surface appearance and no pitting.
- Integrated corrosion and scale inhibition: disperses micro-deposits and inhibits under-deposit corrosion, supporting long-term, stable operation of the water injection system.
- Synergistic microbial control: inhibits the growth of bacteria (including SRB) in reinjection water and reduces microbiologically influenced corrosion.
- Excellent film-forming and spreading behavior: reduces interfacial tension, promotes uniform spreading of the treatment fluid and forms a dense protective film.
- Convenient dosing: good water solubility; suitable for direct addition and accurate automatic metering.
Main Applications
- Oilfield reinjection water systems: corrosion protection of injection lines, wellbores and surface equipment; protects carbon steel and low-alloy steel (e.g. N80).
- Produced fluid and gathering systems: inhibits corrosion by acidic media on the inner walls of produced-fluid and gathering pipelines containing H₂S and CO₂.
- Produced water reinjection and treatment stations: corrosion protection for equalization/storage tanks, settling tanks, filters and related stages.
- Other water systems: corrosion control in circulating cooling water, boiler water and other carbon steel equipment systems.
Dosage and Recommended Use
- Dosing method: water-soluble liquid; may be added directly or, after dilution, injected continuously into the system via a metering pump.
- Initial dosage: 30 mg/L (based on product as supplied) for the first addition; run for 24-48 hours to establish a complete protective film.
- Maintenance concentration: maintain 20-50 mg/L during normal operation; the optimum dosage should be determined by testing according to water quality, temperature and flow rate.
- Compatibility: compatible with scale inhibitors, dispersants and biocides; a compatibility test is recommended before preparing a combined formulation.
Packaging, Storage and Safety
- Packaging: 25 kg and 200 kg plastic drums, or customized to customer requirements.
- Storage: keep containers sealed in a cool, ventilated and dry place, away from direct sunlight; reseal promptly after opening.
- Shelf life: 12 months.
- Safety: wear protective gloves and goggles; if contact with skin occurs, rinse with soap and water; if contact with eyes occurs, rinse with clean water for at least 15 minutes and seek medical attention.