Title:
IN SITU UPGRADING OF COAL
Document Type and Number:
WIPO Patent Application WO2003036035
Kind Code:
A3
Abstract:
A method for treating a coal formation to alter properties of coal in the formation is provided. In one embodiment, heat from one or more heaters may be provided to at least a portion of the formation. Heat may be allowed to transfer from the one or more heaters to a part of the formation. In certain embodiments, the heat from the one or more heaters may pyrolyze at least some hydrocarbons within the part of the formation. The method may include producing a fluid from the formation. In some embodiments, the produced fluid may include at least some pyrolyzed hydrocarbons from the formation. In an embodiment, coal may be produced from the formation.
Inventors:
VINEGAR HAROLD J
WELLINGTON SCOTT LEE
MAHER KEVIN ALBERT
WELLINGTON SCOTT LEE
MAHER KEVIN ALBERT
Application Number:
PCT/US2002/034263
Publication Date:
July 03, 2003
Filing Date:
October 24, 2002
Export Citation:
Assignee:
SHELL OIL CO (US)
SHELL CANADA LTD (CA)
SHELL CANADA LTD (CA)
International Classes:
B09C1/02; B09C1/06; C10G9/24; C10G45/00; E21B17/02; E21B36/00; E21B43/16; E21B43/24; E21B43/243; E21B43/30; E21B44/00; E21B47/022; G01V3/26; (IPC1-7): E21B43/24; C10G1/00; C10B53/00; E21B43/243
Foreign References:
| US4455215A | 1984-06-19 | |||
| US4776638A | 1988-10-11 | |||
| US4537252A | 1985-08-27 | |||
| US4793656A | 1988-12-27 | |||
| US4057293A | 1977-11-08 |
Download PDF: