Long-term souring treatment using nitrate and biocides in high-temperature oil reservoirs

[Display omitted] •Two high-temperature (80–84 °C) oil reservoirs were studied over three years.•Biocides and/or nitrate were used to control SRB in these oil reservoirs.•Nitrate plus THPS controlled H2S production for 34 months in oil reservoir 1.•Nitrate added after 19 months in oil reservoir 2 di...

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Veröffentlicht in:	Fuel (Guildford) 2021-03, Vol.288, p.119731, Article 119731
Hauptverfasser:	Jurelevicius, Diogo, Ramos, Luana, Abreu, Fernanda, Lins, Ulysses, de Sousa, Maíra P., dos Santos, Vanessa V.C.M., Penna, Mônica, Seldin, Lucy
Format:	Artikel
Sprache:	eng
Schlagworte:	Bacteria Biocide Biocides Denitrifying bacteria Fluorescence Fluorescence in situ hybridization High temperature Hydrogen production Hydrogen sulfide Injection Microorganisms Nitrate Nitrates Oil and gas industry Oil recovery Oil reservoirs Reservoirs rRNA 16S Secondary oil recovery Sulfate reduction Sulfate-reducing bacteria Sulfates Sulfide production Thermophilic bacteria Water flooding Water injection
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