In situ thermal processing of a coal formation using a relatively slow heating rate
US6698515B2 · kind B2 · utility
246Cited by
418References
124Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 24, 2001 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Nov 26, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/30
- 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. Heat input into the formation may be controlled to raise a temperature of the formation at a selected rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.