Sodium Sulphite is the most common chemicals used as one of the Oxygen Scavenger. It is used in both fresh water and saltwater drilling fluids containing dissolved oxygen. It is an inorganic compound with the chemical formula Na2SO3. It is a light yellow in appearance which is a water-soluble solid. it is used commercially as an antioxidant and preservative as well. It reacts with and eliminates dissolved oxygen as a possible source of corrosion in drilling mud systems.
TYPICAL PHYSICAL PROPERTIES :
Sr. No.
Property
Specified Value
1
Chemical formula
Na2SO3
2
Purity
20% Min
3
Physical appearance
Pale Cream / Transparent Liquid
4
Matter Insoluble in water
0.08%
5
Iron (as Fe)
20 PPM
6
Heavy Metals
10 PPM
7
Reaction to Amonical silver Nitrate
To pass the test
8
Packing
200 Kg Drums
ADVANTAGES :
Eliminates Corrosion due to dissolved oxygen
Reduces the possibilities of drill pipe failure such as twist-offs, washout, etc.
Increases the lift of pump valves, seats, and liners.
