Compositions and methods for controlled delivery of acid
US10895140B2 · kind B2 · utility
8Cited by
15References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2018 |
| Grant date | Jan 19, 2021 |
| Priority date | — |
| Expiry date | Jul 15, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compositions and methods for the controlled delivery of acid to a desired location. In some embodiments, methods for in situ acid stimulation of a subterranean formation that contains a hydrocarbon reservoir comprise contacting the formation with an aqueous fluid that comprises (a) an ammonium salt capable of being oxidized to produce acid and (b) an oxidizing agent capable of oxidizing the ammonium salt, where the ammonium salt and oxidizing agent react to produce an acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.