Back to results
US 11,377,584 B1Granted
Nanodissolver for iron sulfide scale removal
AssigneeHalliburton Energy Services, Inc.
InventorsSaleh Haif Almutairi, Yasmeen Hani Najm, Azhar Ahmed Alhasawi
Life of this patent
Estimating the term…
Abstract
A method may include introducing into a wellbore a treatment fluid including a nanoparticle antiscalant; and a base fluid; contacting the nanoparticle antiscalant with an iron sulfide scale present in the wellbore; and dissolving at least a portion of the iron sulfide scale with the nanoparticle antiscalant.
Claims18
A method comprising:
- introducing into a wellbore a treatment fluid comprising:
- a nanoparticle antiscalant comprising a transition metal peroxide;
- and
- a base fluid;
- contacting the nanoparticle antiscalant with an iron sulfide scale present in the wellbore;
- and
- dissolving at least a portion of the iron sulfide scale with the nanoparticle antiscalant;
- wherein the transition metal peroxide comprises zinc peroxide (ZnO2).
5 more elements
A method comprising:
- preparing a treatment fluid comprising:
- a nanoparticle antiscalant comprising zinc peroxide (ZnO2);
- and
- an aqueous base fluid with a pH of about pH 4 to about pH 5;
- introducing the treatment fluid into a wellbore.
2 more elements
A method comprising:
- introducing into a wellbore a treatment fluid comprising:
- a zinc peroxide (ZnO2) nanoparticle antiscalant;
- an organic ligand, wherein the ZnO2 nanoparticle antiscalant and the organic ligand are present in a ratio of about 1:1 ZnO2 nanoparticle antiscalant to organic ligand;
- and
- an aqueous base fluid with a pH of about pH 4 to about pH 5;
- and
- allowing the nanoparticle antiscalant to dissolve iron sulfide scale in the wellbore.
4 more elements
Dependencies are inferred from the claim text.