Beyond Triazines: Development of a Novel Chemistry for Hydrogen Sulfide Scavenging

Abstract The presence of hydrogen sulfide is an ever-present problem within the oilfield industry, resulting in significant additional operating costs, particularly with respect to increased corrosion, higher pipeline failure rates, and souring of produced oil. In order to mitigate the effects of hydrogen sulfide, chemical scavengers are often applied. However, application of the appropriate chemistry requires knowledge of the impact of system parameters, such as temperature and pH, on the performance of the scavenging chemical. In this regard, a novel product has been developed that exhibits good hydrogen sulfide scavenging performance in aqueous conditions over a wide temperature and pH range. The kinetics and mechanism of H2S scavenging are discussed and compared with current technologies employed for hydrogen sulfide scavenging, such as triazines.