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:
Oct. 11, 2016
Filed:
Apr. 27, 2011
James R. Mcconaghy, Salida, CO (US);
Leonard H. Switzer, Iii, Rifle, CO (US);
Alan K. Burnham, Livermore, CA (US);
Roger L. Day, Rifle, CO (US);
James R. McConaghy, Salida, CO (US);
Leonard H. Switzer, III, Rifle, CO (US);
Alan K. Burnham, Livermore, CA (US);
Roger L. Day, Rifle, CO (US);
American Shale Oil, LLC, Newark, NJ (US);
Abstract
A heating system for a subterranean mineral formation according to embodiments of the present invention includes a casing positioned in a bore in the subterranean mineral formation, the casing having an outer surface and an inner surface, a heating element positioned within the casing, a surface connection system having a first end coupled to the heating element within the casing and a second end at a top ground surface above the subterranean mineral formation, a heat transfer fluid contained within the casing, the heat transfer fluid configured to transfer heat between the heating element and the inner surface of the casing, wherein at least a portion of the heat transfer fluid is undergoing phase changes between liquid and gas in order to regulate a temperature of the casing. Fins may be included on the outside of the casing to enhance heat transfer.