Sulfate Reduction Activity – MIC
Measure sulfate reduction rates in samples
In nearly all industries, sulfate reducing bacteria (SRB) are routinely implicated in microbiologically influenced corrosion (MIC).
In the oil and gas industry, biological sulfate reduction has severe consequences in addition to MIC including reservoir souring, contamination of natural gas and oil, and reservoir plugging potentially leading to reduced oil production.
The Sulfate Reduction Activity assay is similar to a tracer study and provides an estimate of the in situ sulfate reduction rate. In the laboratory, a small amount of 35S-sulfate is added to the sample and incubated at temperatures close to observed under field conditions. After a short incubation period, reduced inorganic sulfides are extracted, 35S-sulfides are measured, and sulfate reduction rates are calculated. The sulfate reduction assay is sensitive and accurate even in system with high background sulfate concentrations.