Development of Triple-Function Chemical Formulations for Simultaneous Mitigation of Scale, Corrosion, and Hydrogen Sulfide in Oil and Gas Production Systems

Abstract The increasing complexity of oil and gas production environments has amplified the demand for multifunctional chemical treatments that concurrently address multiple flow assurance and integrity challenges. Scale formation, corrosion, asphaltene and paraffin deposition, hydrate risk, and solid contaminants such as iron sulfides often coexist—posing significant operational and economic burdens. Despite numerous advancements, integrating hydrogen sulfide (H2S) scavenging functionality into combination products has faced persistent hurdles due to formulation constraints and application-specific limitations. This study presents the development of multifunctional chemical products tailored for gas lift and capillary string applications that effectively combine H2S scavenging, scale inhibition, and corrosion protection. Key formulation strategies focused on achieving functional synergy while overcoming compatibility challenges commonly observed between H2S scavengers and other active components. Several triple-combination variants were successfully designed and evaluated. Laboratory testing confirmed strong performance, demonstrating notable reductions in corrosion rates, effective scale control, and efficient H2S mitigation. Integrating these functionalities into a single product streamlines field operations, reduces total chemical dosage, minimizes handling and logistics, and contributes to sustainability goals by lowering chemical footprints. These results support the potential of triple-function technologies as high-value solutions for complex upstream environments.