Preparation method, formulation and application of chemically retarded mineral acid for oilfield use
US9920606B2 · kind B2 · utility
6Cited by
64References
10Claims
0Family size
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Key dates
| Filing date | Aug 12, 2015 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Aug 12, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/54
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous composition comprising a mineral acid, a fixing agent and water present in an amount sufficient to dissolve the mineral acid and the fixing agent. The fixing agent comprises at least one of an amine and/or an amide containing compound having a dipole moment of at least 3 when in the aqueous composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.