Detailed comparative efficacy laboratory studies were conducted using relevant field conditions which highlighted the excellent performance of this new biocide compared to other commonly used oil and gas biocides. Results showed that the biguanide polyammonium blend provided quick and persistent biocidal activity against a range of bacteria, including acid producing and sulfate reducing bacteria at low concentrations. The blend was also compatible with additives typically found in oil and gas stimulation fluid packages and worked over a broad range of pH, TDS, and temperatures, indicating broad fluid and environmental compatibility across a wide range of oil and gas applications. In addition, results show strong performance advantages against corrosion causing biofilms. These results were verified in a field trial that confirmed the biocidal performance of the biguanide-polyammonium blend against biofilm in a produced water processing facility.

Subject
Water, Sand, Tubes, Stimulation, Oil and gas, Biofilms, Efficacy, Incubation, Bacteria, Glutaraldehyde, Biocides, Microorganisms, Coupons
Keywords:
biocide, non-oxidizing biocide, biofilm, oil and gas, hydraulic fracturing, stimulation, production, hydrothermal stability, biguanide polyammonium-blend, BPAB
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2022
Association for Materials Protection and Performance (AMPP)
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