Corrosion control for supercritical carbon dioxide fluids
AssigneeBaker Hughes Oilfield Operations LLC
InventorsTracey Jackson, Sunder Ramachandran, Zhengwei Liu, Jonathan Stewart-Ayala
Life of this patent
Estimating the term…
Abstract
A method of preventing or mitigating corrosion on a metallic surface exposed to a supercritical fluid is disclosed. The method includes adding a corrosion inhibitor composition to a supercritical fluid comprising a supercritical carbon dioxide; and contacting the supercritical fluid with a metallic surface, wherein the corrosion inhibitor composition comprises a corrosion inhibitor that has a solubility of greater than 5,000 ppm in the supercritical fluid at 48.9° C. and 2,200 psi.
Claims23
A method of preventing or mitigating corrosion on a metallic surface exposed to a supercritical fluid, the method comprising:
- adding a corrosion inhibitor composition to a supercritical fluid comprising a supercritical carbon dioxide;
- and
- contacting the supercritical fluid with a metallic surface,
- wherein the corrosion inhibitor composition comprises a corrosion inhibitor that has a solubility of greater than 5,000 ppm in the supercritical fluid at 48.9° C. and 2,200 psi,
- wherein the supercritical fluid is contacted with the metallic surface during a carbon dioxide capturing and sequestering operation.
A method of preventing or mitigating corrosion on a metallic surface exposed to a supercritical fluid, the method comprising:
- adding a corrosion inhibitor composition to a supercritical fluid comprising a supercritical carbon dioxide;
- and
- contacting the supercritical fluid with a metallic surface,
- wherein the corrosion inhibitor composition comprises a corrosion inhibitor that has a solubility of greater than 5,000 ppm in the supercritical fluid at 48.9° C. and 2,200 psi,
- wherein the metallic surface comprises carbon steel.
A method of preventing or mitigating corrosion on a metallic surface exposed to a supercritical fluid, the method comprising:
- adding a corrosion inhibitor composition to a supercritical fluid comprising a supercritical carbon dioxide;
- and
- contacting the supercritical fluid with a metallic surface,
- wherein the corrosion inhibitor composition comprises a corrosion inhibitor that has a solubility of greater than 5,000 ppm in the supercritical fluid at 48.9° C. and 2,200 psi, and
- wherein the corrosion inhibitor composition is added to a pipeline originating from a carbon dioxide capture facility, an injection well tubular, or a combination thereof.
Dependencies are inferred from the claim text.