Reducing the sulfate content of injected seawater will significantly reduce the ability of sulfate reducing bacteria to produce hydrogen sulfide. This paper documents research and development performed over a period of five years that suggests treatment of seawater by nanofiltration membranes deserves serious consideration as a methodology to control reservoir souring. Comparison of the effects of injected raw and desulfated seawater on hydrogen sulfide production is demonstrated by reservoir simulation methodology.

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