Particulate compositions for iron sulfide remediation

Abstract

Particulate compositions for remediating iron sulfide in distressed water sources include composite particles having both an iron sulfide remediation agent and an elution retarder present in the same particle. Slurries including the particulate compositions may be injected into a subterranean reservoir in conjunction with a fracturing process to establish an oil or gas well, where the composite particles obtain iron sulfide remediation of the subterranean reservoir for period of time that is at least 10% longer than the same method carried out in the absence of the elution retarder.

Dependencies are inferred from the claim text.