β Scribed by M.O. Benka-Coker; W. Metseagharun; J.A. Ekundayo
No coin nor oath required. For personal study only.
The abundance of sulphate-reducing bacteria (SRB) in oil]~eld waters from six land-based flowstations at different oilJields in the Niger Delta of Nigeria was determined over a period of six months, using the most probable number technique. All the oilfield waters contained SRB. However, their relative abundances varied with month of sampling. The highest count (2400 SRB/IO0 ml) was obtained during the rainy season months (Juty/AugusO while the lowest St~ density (9 SRB/IO0 ml), which also corresponded with lowest values of oil and grease content of the oilfield waters, was obtained during the dry season (November/ December). The presence of SRB in such large numbers in the oilfield water samples showed that the waters had the potential to sustain the growth of the organisms and their prevalence suggested that these organisms could be a source of crude oil contamination and biocorrosion of pipe-and flow-lines.
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