EI Research report: The use of nitrate treatment in oilfield systems to control reservoir souring: A review of current status

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EI Publications

  • Published: September 2017
  • REF/ISBN: 9780852938157
  • Edition: 2nd
  • Status: New

The treatment of injection water with nitrate (NO3) is a method that has emerged, over the past 15 years, to considerably reduce the level of biogenic hydrogen sulfide (H2S) production in oilfield systems.

Nitrate treatment technology is increasingly used for the control of sulfate (SO42−)-reducing microorganisms, and hence the prevention and mitigation of biogenic H2S by oil production and oilfield service companies. However, its success and the effect of NO3 on corrosion processes vary considerably and appear to be specific to operating conditions.

Presently, nitrate treatment is used on many installations in a variety of environmental conditions. This publication reviews the current literature, reports, presentations and experimental and trial data available. It supersedes the first edition, The stimulation of nitrate-reducing bacteria (NRB) in oilfield systems to control sulfate-reducing bacteria (SRB), microbiologically influenced corrosion (MIC) and reservoir souring: An introductory review with information relating to experimental investigation and industry experience.

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