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:
Aug. 30, 2016
Filed:
Jul. 11, 2014
Applicant:
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Inventors:
Huen Lee, Daejeon, KR;
Dong Yeun Koh, Daejeon, KR;
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Daejeon, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/16 (2006.01); E21B 43/295 (2006.01); E21B 43/01 (2006.01);
U.S. Cl.
CPC ...
E21B 43/164 (2013.01); E21B 43/01 (2013.01); E21B 43/295 (2013.01); E21B 2043/0115 (2013.01); Y02P 90/70 (2015.11);
Abstract
Methods for recovering methane gas from natural gas hydrates are provided. A representative method includes the step of adding a gas mixture containing air and carbon dioxide to a natural gas hydrate (NGH), the step of replacing the methane gas with the gas mixture, and the step of decomposition-replacement of methane hydrate.