Bacteria changes the fluid’s pH and negatively impacts scaling tendencies due to the creation of carbon dioxide. This leads to elevated bicarbonate that aids in the formation of carbonate scales.
Sulfate reducing bacteria (SRB) generates hydrogen sulfide, and in the presence of iron will generate iron sulfide (FeS), a major contributor to iron pads.
Bacteria produces a biofilm that lines tank walls, flowlines, valves, seals, gaskets, plungers, and downhole tubing. These destructive “biofilm” layers allow Microbially Influenced Corrosion to flourish.