ABSTRACT
The impact of microorganisms on oilfield operations should not be underestimated. A major problem is sulfate-reducing bacteria and archaea (SRB, SRA) which can reduce sulfate to highly reactive and corrosive hydrogen sulfide and lead to microbiologically influenced corrosion (MIC). Another issue is the formation of biofilm and slimes which protect the microorganisms extensively. Hence, biocides are applied in oilfield production facilities to prevent and minimize the hazard of microbial contamination.
This chapter underlines the importance of considering the compatibility between chemicals used in production facilities and in a laboratory biocide evaluation program. The results presented emphasize that the efficacy of a biocide is highly dependent on the conditions to which the biocide is applied, and that the choice of the oxygen scavenger can impact the stability of the biocide within the experimental setup.
