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:
Dec. 19, 2017
Filed:
Sep. 18, 2014
Applicant:
Montanuniversität Leoben, Leoben, AT;
Inventor:
Herbert Hofstätter, Voecklabruck, AT;
Assignee:
Montanuniversaität Leoben, Leoben, AT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/26 (2006.01); C09K 8/68 (2006.01); C09K 8/66 (2006.01); C09K 8/90 (2006.01); C09K 8/80 (2006.01); E21B 43/267 (2006.01);
U.S. Cl.
CPC ...
C09K 8/68 (2013.01); C09K 8/665 (2013.01); C09K 8/80 (2013.01); C09K 8/90 (2013.01); E21B 43/26 (2013.01); E21B 43/267 (2013.01);
Abstract
Energy recovery medium for insertion into a ground hole in a ground comprising a recoverable energy carrying medium, wherein the energy recovery medium comprises a base liquid, a carbohydrate-based thickener mixed in the base liquid, a salt dissolved in the base liquid and configured for increasing a density of the base liquid, and proppant particles dispersed within the mixture of the base liquid, the thickener and the salt.