ClO₂: The Sustainable Biocide
for Produced & Injection Water
This paper outlines how chlorine dioxide (ClO₂) provides a safer, more sustainable alternative to traditional oilfield biocides. Laboratory and field data show ClO₂ achieves near-complete control of sulfate-reducing and acid-producing bacteria (SRB/APB) at concentrations as low as 0.7–1.0 mg/L, while also oxidizing sulfides and biofilms. Unlike aldehyde-based treatments, ClO₂ decomposes to chloride and oxygen, leaving no persistent residues. Field applications demonstrate improved filtration, reduced plugging, and restored injectivity, positioning ClO₂ as a next-generation solution for corrosion control and sustainable produced water reuse in oil and gas operations.
