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. 16, 2016
Filed:
May. 16, 2013
Japan Petroleum Exploration Co., Ltd., Tokyo, JP;
Tomonori Ikeno, Ichikawa, JP;
Kazumoto Chiba, Ichihara, JP;
Toshiya Wakatsuki, Funabashi, JP;
Yusuke Takeuchi, Akita, JP;
Kazutoshi Chaki, Ichihara, JP;
Junichiro Ando, Kitamoto, JP;
Japan Petroleum Exploration Co., Ltd., Tokyo, JP;
Abstract
A production method for natural gas according to the invention includes a step of adiabatically compressing a raw natural gas containing helium gas, a step of separating the helium gas from the raw natural gas by passing the adiabatically-compressed raw natural gas through a separation membrane unit, a step of conveying the raw natural gas from which the helium gas has been separated to a terminal through a pipe line, and a step of pressing the helium gas separated from the raw natural gas into an underground storage formation.