In-situ kerogen conversion and recovery
US8936089B2 · kind B2 · utility
40Cited by
272References
48Claims
0Family size
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Key dates
| Filing date | Dec 22, 2011 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Jun 25, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods for extracting a kerogen-based product from subsurface (oil) shale formations. These methods rely on chemically modifying the shale-bound kerogen using a chemical oxidant so as to render it mobile. The oxidant is provided to a formation fluid in contact with the kerogen in the subsurface shale. An alkaline material is also provided to the formation fluid to mobilize organic acids which are produced during oxidation of the kerogen. A mobile kerogen-based product which includes the organic acids is withdrawn from the subsurface shale formation and further processed to isolate the organic acids contained therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.