Process for the cleaning oil and gas wellbores
US10781358B2 · kind B2 · utility
1Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2018 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Jul 7, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Cleaning composition for use in cleaning wellbore walls, tubing or casing comprising: (i) from about 5% to 100% by weight of a mixture M consisting of from 10% to 50% by weight of acetophenone, from 5% to 30% by weight of butyl glycol and from 40% to 80% by weight of a surfactant, and (ii) from 0% to 95% by weight of water, in which (i)+(ii) sum up for at least 85% by weight of the cleaning composition; and process for cleaning a wellbore wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.