Application guide

Produced Water H₂S Scavenger — Triazine for Reinjection & Disposal

Produced water carries dissolved hydrogen sulfide and sulfides that corrode injection systems, create safety and odour problems, and worsen reservoir souring. Water-miscible triazine H₂S scavengers remove that dissolved sulfide before reinjection or disposal.

Quick answer: triazine reacts with dissolved H₂S/HS− in produced water to form stable, non-volatile products, cutting corrosion and odour ahead of reinjection or discharge. It scavenges sulfide — it is not a biocide, so SRB souring is managed separately. MEA 78% for bulk duty; MMA 40% for warm/continuous streams.

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Why Sulfide Must Be Removed

  • Corrosion of injection pumps, lines and disposal wells
  • Safety and odour at water-handling facilities
  • Souring propagation through reinjection
  • Discharge / disposal specification compliance

Scavenger vs Biocide

Triazine removes the sulfide already present; a biocide program controls the sulfate-reducing bacteria that generate new sulfide. Using both addresses the current H₂S load and the microbial source of souring.

Related Reading

Frequently Asked Questions

Why treat H2S / sulfide in produced water?+
Produced water often carries dissolved hydrogen sulfide and sulfides — from the reservoir or from sulfate-reducing bacteria (reservoir souring). Left untreated they cause corrosion of injection lines and equipment, safety and odour issues at handling facilities, and can worsen souring in reinjection. A triazine scavenger removes dissolved sulfide before reinjection or disposal.
How does triazine work in the water phase?+
Triazine is water-miscible and reacts with dissolved H2S/HS− to form stable, non-volatile products, lowering sulfide in the aqueous stream. Because produced water is aqueous, contact is generally good; injection point and residence time are set so the reaction completes before the next stage.
Which triazine grade suits produced water?+
MEA Triazine 78% gives high active content for cost-effective bulk water treatment; MMA Triazine 40% is chosen where more soluble by-products reduce solids in warm or continuous service. Grade is matched to sulfide load, temperature and water chemistry.
Does triazine stop reservoir souring / SRB activity?+
Triazine scavenges the sulfide already present; it is not a biocide and does not kill sulfate-reducing bacteria. For microbial souring control, a biocide program addresses the SRB, while triazine removes the H2S/sulfide load. The two are complementary.
How is over-treatment and solids avoided in water systems?+
Dose to the measured sulfide load, select a soluble-by-product grade for warm streams, provide adequate mixing/contact time, and monitor spent scavenger and residual amine to prevent by-product build-up and deposition.
Do you supply triazine for produced-water and water-injection operations?+
Yes. Vasudev Chemo Pharma manufactures MEA Triazine 78% and MMA Triazine 40% and exports globally with batch COA and dosing guidance for produced-water, reinjection and disposal-well H2S/sulfide control.

Removing sulfide from produced water?

Vasudev Chemo Pharma supplies MEA Triazine 78% and MMA Triazine 40% with dosing guidance, batch COA, and global export from our ISO 9001:2015 certified facility in Gujarat, India.

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