Methods and emulsions for inhibition of oil well corrosion
US5753596A · kind A · utility
21Cited by
20References
27Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 9, 1995 |
| Grant date | May 19, 1998 |
| Priority date | — |
| Expiry date | Nov 9, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/939
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A novel method for inhibiting oxygen corrosion in an oil well, and an emulsion useful therein. The method comprises introducing into the well a pourable emulsion comprising about 50 to about 95 volume percent discontinuous aqueous phase, about 5 to about 50 volume percent continuous oil phase, and a corrosion inhibiting amount of a composition comprising a corrosion inhibitor selected from among thiophosphates containing both oxygen and sulfur, pyrophosphates containing both oxygen and sulfur and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.