Paratene M311 is a unique hydrogen sulfide scavenger used in oil field operations to react rapidly with hydrogen sulfide to form an oil soluble by-product. The reaction is irreversible, and when PH is neutral or acidic, H2S cannot be released from the solution. Unaffected by carbon dioxide, it can work effectively even at low temperatures.

Sketch map of Parra Stern (Paratene) underground use