Improper handling of hydrogen sulfide (H2S) in mixed sour production can lead to serious environmental and safety concerns as well as numerous corrosion and compliance issues. To remove H2S from mixed production applications, several chemistries are commonly used. The most common are triazines, glyoxal, and metal-based chemistries. Although each can be effective to a certain extent, these technologies have issues with efficiency or they can create serious side issues. To overcome issues with currently used chemistries in mixed sour production, extensive research was conducted to identify chemistry that would efficiently remove H2S while minimizing negative side effects.

Systematic evaluation was performed for a series of chemistries to compare the scavenging efficiency, with a special emphasis on mixed production systems. Focus was also given on studying the associated side effects like emulsification tendency, scaling tendency, etc. Laboratory and field results proved the efficacy of the new non-MEA, non-triazine chemistry in mitigating H2S in upstream, midstream and downstream applications while showing no/minimal side effects. The new and best in class chemistry can significantly reduce CAPEX and OPEX, as well as enable new approach for reliable, safer and sustainable H2S management while being especially efficient in mixed production systems.

Subject
Test methods, Materials, Precipitation (solids), Hydrogen concentration, Triazines, Bottles, Fluids, Plastics, Chemistry, Brines, Elastomers, Metallurgy, Scaling
Keywords:
hydrogen sulfide management, mixed production, non-triazine, side effects
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2020
Association for Materials Protection and Performance (AMPP)
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