The products designed for water and gas application form water- soluble, low-toxicity, biodegradable compounds which are non-corrosive and which will not release hydrogen sulfide even over extremes of pH variation. Products destined for use in oil systems can be pumped directly into the stream. They are completely oil-soluble and yield oil-soluble, biologically friendly reaction byproducts. The most common application for H2S scavengers is direct injection into a wet gas stream, frequently at the outlet to the three-phase separation train. It is normal for the largest proportion of the H2S to be removed at the high-pressure separator. In most cases, the water present in the wet gas stream from the three-phase separators will be solely condensed water. If some produced or formation water is present, significant carbonate scale problems may be encountered.
