Wax deposit removal using aqueous surfactant
US11427749B2 · kind B2 · utility
0Cited by
14References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2020 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Jul 6, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/524
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method and system for removing wax deposits from a wellbore and other oil production and processing equipment using a wax removal surfactant having at least 1% alkyl polyglycoside (APG), at least 0.5% ethoxylated alcohol (AE) or alcohol ethoxysulfates (AES), and at least 1% saturated alcohol, and optionally comprising D-Limonene, wherein the wax removal surfactant solution forms a Winsor Type III or Type IV microemulsion with water and wax.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.