Anti-agglomerate gas hydrate inhibitors for use in petroleum and natural gas systems
US9193671B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2011 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Sep 24, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L2200/029
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method of inhibiting gas hydrate formation in petroleum and natural gas production systems through the use of low dosage hydrate inhibitors which include reaction products of non-halide-containing inorganic acids, organic acids, and organic amines. The use of these non-halide-containing reaction products rather than chloride containing acids or alkylating agents avoids corrosion and stress cracking caused by residual inorganic chloride and other inorganic, halide-containing acids. The anti-agglomerate compositions can be administered continuously to effectively inhibit gas hydrate formation. In preferred embodiments, the anti-agglomerate compositions are mixtures of reaction products of non-halide-containing organic acids and organic amines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.