CLTD50 - Oxygen Scavenger


CLTD50 Oxygen Scavenger is a rapid acting oxygen scavenger used to control corrosion in drilling fluids and oil production systems.  CLTD50 is compatible with all water based drilling fluids. As part of a comprehensive corrosion program, it is highly cost effective in protection of tubular goods.  CLTD50 is available in both catalyzed and non-catalyzed forms.


Appearance: Light green to yellow liquid

Odor:  Strong Sulfur Dioxide odor

Assay:  50% to 55% Ammonium Bisulfite

Density (Lbs. /Gal):  10.6 to 10.8

Specific Gravity:  1.275 to 1.305 @ 68oF

pH:  4.9 to 5.5


Fresh Water:  Soluble

Brine Water:  Soluble


CLTD50 can be added directly into the suction pit.  Excess sulfites should be maintained at 20-25 ppm in brine drilling systems; in cut brine / fresh water systems excess sulfites should be maintained at 70-80 ppm.  1 gallon of CLTD50 per 1,000 barrels of fluid will generate 24 ppm excess sulfites.  10 ppm excess sulfites will treat out approximately 1 ppm oxygen.  This corresponds to 10-15 gallons of CLTD50 per day in fresh water systems.


CLTD50 is shipped in 55 gallon plastic drums.  For information regarding safety precautions in handling, health hazards, and exposure, please refer to the safety data sheet.  In case of an emergency, please call 800-669-8023.