Iron Sulfide Scale Inhibition in Carbonate Reservoirs
Nijat Gasimli, Mohamed Mahmoud, Muhammad Shahzad Kamal, Shirish Patil, Hamad Al-Saiari, Ibnelwaleed A. Hussein
Abstract
) and caused nearly 20% more permeability reduction, while more inhibitor soaking time resulted in comparably higher adsorption and lesser permeability diminution. The results of ζ-potential measurements showed that the pH environment controls iron(II) and (III) precipitation, and iron(III) starts to deposit from a low pH region, whereas iron(II) precipitates in increased pH environments in calcite minerals.
Topics & Concepts
AdsorptionEthylenediaminetetraacetic acidChemistryCarbonateCalciteChelationPrecipitationProduced waterInorganic chemistryMineralogyGeologyPetroleum engineeringOrganic chemistryPhysicsMeteorologyCalcium Carbonate Crystallization and InhibitionEnhanced Oil Recovery TechniquesHydraulic Fracturing and Reservoir Analysis