Title:
METHOD FOR EXTRACTING METHANE GAS AND REHYDRATION INHIBITOR
Document Type and Number:
Japanese Patent JP2015030967
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for extracting methane gas capable of efficiently extracting methane gas while inhibiting rehydration, when decomposing methane hydrate fixed to a foundation of an underground, a sea bottom, a water bottom, or the like.SOLUTION: An inventive method for extracting methane gas from methane hydrate in a foundation, the method includes: a step of decomposing the methane hydrate to generate methane gas and water; and a step of inhibiting rehydration of the generated methane gas and the water in a rehydration inhibitor. The rehydration inhibitor consists of an oily material having a density which is higher than that of the methane hydrate and lower than that of the water.
Inventors:
KAWAMOTO HIDETAKA
MIZUTA MOTONARI
ITO AKIO
MIZUTA MOTONARI
ITO AKIO
Application Number:
JP2013158571A
Publication Date:
February 16, 2015
Filing Date:
July 31, 2013
Export Citation:
Assignee:
NOF CORP
International Classes:
E21B43/00
Domestic Patent References:
| JP2007513218A | 2007-05-24 | |||
| JP2007308891A | 2007-11-29 | |||
| JP2012172418A | 2012-09-10 |
Attorney, Agent or Firm:
Yoshihiro Yoneda
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