CI – S1H2S
H2S scavenger is a proven inhibitor aid for use in hydrochloric acid in treating sour wells which contain hydrogen sulfide gas. H2S may be present in stimulation fluids due to the dissolution of sulfide scale (mainly Iron Sulfide) or contact with sour well fluids. This chemical is a sulfide complexing agent which is designed to control sulfide cracking of tubular and precipitation of free sulfur when acidizing oil and gas wells that contain hydrogen sulfide or iron sulfide deposits. It is often used in conjunction with other iron controlling agents. Normal concentration range for this additive is 0.5 to 3.0 volume percent (5 to 30 gallons per 1000 gallons acid).