Multi-functional compositions comprising concentrated acids for enhanced oil and gas recovery
US11807810B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2020 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | Jun 25, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/27
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The subject invention provides multi-functional biochemical compositions, as well as their use in enhancing oil recovery by, for example, enhancing traditional acid treatments. Advantageously, the compositions and methods of the subject invention are operationally-friendly, cost-effective, and environmentally-friendly approaches to enhancing oil recovery. More specifically, in preferred embodiments, the subject invention provides a multi-functional composition for enhanced oil recovery (EOR) comprising one or more concentrated acids that work in synergy with a combination of one or more surfactants, one or more chelating agents, and one or more solvents to stimulate the flow of oil from a formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.