Reservoir souring is very unlikely. The Titan nutrients are aimed at specific beneficial microbes and not sulfate reducing bacteria (SRB) which are often the source cause of hydrogen sulfide gas (sour gas). Because the beneficial microbes alter the habitat to suit themselves and not the SRBs, the SRB activity is reduced. The result is that the reservoir in the treatment area becomes “sweeter” as the SRBs are crowded out. Stimulated beneficial microbes simply overpower the SRBs. Very large sour reservoirs have significant volumes of hydrogen sulfide already in-place. Very sour wells may present a treating problem but the Titan Process will not aggravate the problem.