Methods for inhibiting iron sulfide scale in oil wells
US9957435B2 · kind B2 · utility
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2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2016 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | May 3, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Formulations and method for preventing and inhibiting the formation of iron sulfide in hydrocarbon producing wells are disclosed. The methods may include treating at least one of an oil well, a production fluid, and downstream field equipment with an additive including a DL-aspartic acid polymer. Other formulations and methods are disclosed including methods for reducing microbial counts in hydrocarbon producing wells and/or methods for dispersing iron sulfide in hydrocarbon producing wells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.