Using synthetic acid compositions as alternatives to conventional acids in the oil and gas industry
US10035944B2 · kind B2 · utility
3Cited by
1References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2015 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | May 28, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A synthetic acid composition for use in oil industry activities is disclosed. The composition comprises urea and hydrogen chloride in a molar ratio of not less than 0.1:1; a metal iodide or iodate; an alcohol or derivative thereof. Optionally, the composition may include formic acid or a derivative thereof propylene glycol or a derivative thereof, ethylene glycol glycerol or a mixture thereof; cinnamaldehyde or a derivative thereof; and a phosphonic acid derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.