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.:
Date of Patent:
Apr. 19, 2005
Filed:
Apr. 24, 2001
Harold J. Vinegar, Houston, TX (US);
Scott Lee Wellington, Belliare, TX (US);
Ilya Emil Berchenko, Friendswood, TX (US);
Robert Martijn Van Hardeveld, Amsterdam, NL;
Harold J. Vinegar, Houston, TX (US);
Scott Lee Wellington, Belliare, TX (US);
Ilya Emil Berchenko, Friendswood, TX (US);
Robert Martijn Van Hardeveld, Amsterdam, NL;
Shell Oil Company, Houston, TX (US);
Abstract
A coal formation may be treated using an in situ thermal process. A mixture of 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 pyrolysis temperature. A portion of a formation may be heated from a plurality of heat sources to a temperature sufficient to allow generation of a first synthesis gas having a low Hto CO ratio. A second portion of a formation may generate synthesis gas having a Hto CO ratio greater than the first synthesis gas. A portion of the first synthesis gas may be blended with a portion of the second synthesis gas to produce a blend synthesis gas having a desired Hto CO ratio.