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US 10,519,406 B2Granted
Treatment of sulfide scales
AssigneeSaudi Arabian Oil Company
InventorsKatherine Leigh Hull, Brent Cooper
Life of this patent
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Abstract
Treating a sulfide scale includes contacting the sulfide scale with an oxidizing composition that includes a first oxidizer and a second oxidizer.
Claims13
A method comprising treating an iron sulfide scale, the method comprising:
- contacting the iron sulfide scale with an oxidizing composition comprising:
- a first oxidizer comprising ammonium persulfate, wherein the ammonium persulfate has a concentration of about 5 millimolar (mM) to about 1 molar (M) in the oxidizing composition;
- and
- a second oxidizer comprising sodium bromate, wherein the sodium bromate has a concentration of about 5 mM to about 2 M in the oxidizing composition.
1 more element
A method of treating an iron sulfide scale comprising contacting the sulfide scale with an oxidizing composition comprising:
- ammonium persulfate;
- and
- sodium bromate,
- wherein the ammonium persulfate is an oxidizer and has a concentration of about 5 mM to about 1 M in the oxidizing composition and the sodium bromate is an oxidizer and has a concentration of about 5 mM to about 2 M in the oxidizing composition.
1 more element
A method of treating an iron sulfide scale comprising contacting the sulfide scale with an oxidizing composition comprising:
- ammonium persulfate;
- and
- sodium bromate,
- wherein the ammonium persulfate has a concentration of about 5 mM to about 1 M and the sodium bromate has a concentration of about 5 mM to about 2 M.
1 more element
Dependencies are inferred from the claim text.