The main problem of biogenic is the production of H S in the oil industry that can lead to corrosion 2 and reservoir souring. Collection of bacteria called sulfate-reducing bacteria (SRB) is always the responsible of problems such as reservoir souring, equipment and pipeline failures. The corrosion mechanism understanding of SRB is unavoidable. In this study, various mechanisms proposed for SRB induced corrosion are investigated. © IDOSI Publications, 2012.