Method for the removal and recovery of the oil component from drill cuttings
US6550552B1 · kind B1 · utility
15Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2000 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Jan 18, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/904
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Oil drill cuttings, containing an oil-based mud, may be treated by mixing the cuttings with an organic solvent. The oil drill cuttings are then separated from the organic solvent and extracted oil. The organic solvent is then separated from the oil, and mixed with the extracted oil drill cuttings to extract additional oil therefrom. The oil drill cuttings are again separated from the organic solvent and oil, the oil separated from the solvent, and recombined with the oil from the first extraction step. The oil base and other mud components are recycled, depending on the treatment procedure, for subsequent use in drilling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.