Compositions and methods for dissolving iron sulfide
AssigneeEcolab USA Inc.
InventorsCarter Martin SILVERNAIL, Ashish DHAWAN, Emily Rebecca WOOD
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Abstract
The present disclosure provides methods and compositions for dissolving iron sulfide deposits in aqueous systems. A method may include adding a composition to the aqueous medium. The composition may include a polycarboxylate polymer and/or a salt thereof. The composition may optionally include a solvent and/or an additive. The compositions and methods may be used for dissolving typical insoluble inorganic salts encountered in the oil and gas, recovery, water, and processing industries.
Claims20
A method of dissolving an iron sulfide deposit in an aqueous medium, comprising:
- adding a composition comprising a polycarboxylate polymer to the aqueous medium, and
- dissolving at least a portion of the iron sulfide deposit.
A method of dissolving an iron sulfide deposit in an aqueous medium, comprising:
- providing a composition comprising about 0.1 wt. % to about 60 wt. % of a polycarboxylate polymer;
- adding the composition to the aqueous medium, the aqueous medium comprising water, a gas, a liquid hydrocarbon, or any combination thereof, wherein a surface in contact with the aqueous medium comprises the iron sulfide deposit;
- and
- dissolving at least a portion of the iron sulfide deposit.
Dependencies are inferred from the claim text.