In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids
US6588504B2 · kind B2 · utility
251Cited by
357References
93Claims
0Family size
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Key dates
| Filing date | Apr 24, 2001 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Apr 24, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. The mixture produced from the formation may contain condensable hydrocarbons fluids with some nitrogen containing hydrocarbons and/or with some sulfur containing hydrocarbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.