The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6769485 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 03, 2004

Filed:

Apr. 24, 2001
Applicant:
Inventors:

Harold J. Vinegar, Houston, TX (US);

Scott Lee Wellington, Belliare, TX (US);

Eric Pierre de Rouffignac, Houston, TX (US);

Ilya Emil Berchenko, Friendswood, TX (US);

George Leo Stegemeier, Houston, TX (US);

Robert Martijn Van Hardeveld, Amsterdam, NL;

Assignee:

Shell Oil Company, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/324 ; E21B 4/3243 ; E21B 4/330 ; E21B 4/334 ;
U.S. Cl.
CPC ...
E21B 4/324 ; E21B 4/3243 ; E21B 4/330 ; E21B 4/334 ;
Abstract

A coal formation may be treated using an in situ thermal process. Hydrocarbons, H , 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 synthesis gas production temperature. A synthesis gas producing fluid may be introduced into the formation to generate synthesis gas. Production wells may be operated at selected temperatures to obtain a desired synthesis gas composition.


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Vinegar, Harold. (2004). In situ production of synthesis gas from a coal formation through a heat source wellbore (U.S. Patent No. 6769485). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6769485

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