In a H₂S-containing solution, there exists several species, H₂S, hydrogen bisulfide, and elemental sulfide. For an acid fracturing process, the pH is below 7, the majority of the sulfide will be in the form of H₂S. Therefore an acid fracturing fluid formulation design needs to consider the selection of an appropriate H₂S scavenger. In addition to its pre-existence in the reservoir, H₂S can also come from the acidizing process. Iron sulfide deposit can form in the tubular or near wellbore or being a part of the mineral composition in the rock matrix. H₂S is a reaction product of acid dissolving iron sulfide.
DOSAS, DoScav™ H₂S scavengers effectively protect oil, brine, and gas systems from H₂S corrosion, reducing maintenance costs and boosting efficiency.
To achieve effective scale control, industry professionals employ a range of advanced formulas and cutting-edge technologies. From the selection of appropriate scale solution chemicals to the implementation of state-of-the-art monitoring systems, every aspect is carefully considered.
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