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Stabilized Chlorine Dioxide

Petro-FLO is an EPA approved broad spectrum, fast acting microbiocide that is effective in controlling biofilm forming bacteria that contaminate water supplies. Petro-FLO is an oxychloro compound that is easy to store and handle.

Petro-FLO not only eliminates individual sessile and planktonic bacteria, but is extremely effective at penetrating and breaking down slimes that accumulate in the wellbore, surface pipes, and storage tanks. Petro-FLO has a EPA CAT III toxicity rating. Unlike sodium hypochlorite and chlorine, Petro-FLO does not combine with organics to form any significant amount of chlorinated carcinogenic byproducts like THMs or chloroform. The active ingredient in Petro-FLO is also widely used in the sanitation process for foods, beverages, drinking water, and common consumer products such as eye drops and mouthwash, reducing operator concerns during use. Petro-FLO breaks down to non-harmful byproducts, minimizing its environmental impact when used as directed.



ln fracturing treatments, activated Petro-FLO is typically added on-the-fly at the frac tanks or into the blender. Onsite water testing is performed to determine the optimal dosage required to treat the particular source water being used.

As an alternative, the source water may be batch treated in frac tanks or pits. All water should be treated with Petro-FLO, including pump down and drill-out water, to ensure complete dispersal throughout the well system.

Key Features

  • Rapid, sustained, low-dose efficacy against  oil well bacteria and slime
  • Oxyohloro residual acts as bacteriostat against biofilm forming bacteria
  • Residual efficacy can be custom engineered for the application
  • Recommended for on-the-fly, tank side, or storage pit treatment
  • Compatible with friction reducers and guar gels
  • Selective oxidation of H2S and FeS
  • Improves the condition of produced and flowback water for re-use
  • Effective over a broad pH range (1 -10)
  • Stable formula with long shelf life
  • Breaks down to table salt

Petro-FLO is Effective Against  Slime in Oil Wells

Frac water transfer lines, tanks, pits, pumps and fracturing equipment can all be heavily contaminated with large colonies of biofilm-forming bacteria. Inadequate control of these organisms may be the leading cause of well contamination incidents where wells have been treated with insufficient doses of common biocides. Using Petro-FLO, the slime structure is oxidized and dissolved, and the exposed bacteria are then much easier to control. After the slime and bacteria have been eliminated, Petro-FLO provides a level of residual activity that helps to protect against re-growth.

Petro-FLO Chart

SAFE TO HANDLE when used as directed.

Petro-FLO Properties

  • Concentration: 5.0% available chlorine dioxide
  • Appearance: Clear Colorless liquid
  • Odor: Very faint chlorinous odor
  • Boiling point: 221 ºF (105 ºC)
  • Melting point: N/A
  • Freezing point: 25.2 ºF (-3.78 ºC)
  • EPA Cat. III toxicity classification
  • Solubility: Complete (in water or brine)

This product is distributed exclusively by Cudd Energy Services.

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