Title:
APPARATUS AND METHOD FOR COLLECTING UNDERGROUND HYDROCARBON GAS RESOURCES
Document Type and Number:
WIPO Patent Application WO/2004/009958
Kind Code:
A1
Abstract:
Heat energy is sent without heat loss from the sea surface or land surface to a stratum containing methane hydrate, and the energy heats the methane hydrate so that methane gas is efficiently collected. An underground hydrocarbon gas resources-collecting apparatus is provided with a laser oscillator installed on a floating-type marine structure or on the ground, an optical fiber (1) inserted in a tube (2) that is guided to a stratum (B) containing methane hydrate, and means for supplying fluid (water, seawater, gas) to the stratum (B) through a gap between the tube (2) and the optical fiber (1). The stratum (B) containing methane hydrate is heated by laser beam to crush rock, and the methane hydrate is decomposed to separate methane gas. The methane gas and crushed rock are collected together with water or seawater.
Inventors:
FUJIOKA TOMOO (JP)
KOGURE EIJI (JP)
KOBAYASHI TOSHIO (JP)
KOGURE EIJI (JP)
KOBAYASHI TOSHIO (JP)
Application Number:
PCT/JP2003/009092
Publication Date:
January 29, 2004
Filing Date:
July 17, 2003
Export Citation:
Assignee:
FUJIOKA TOMOO (JP)
KOGURE EIJI (JP)
KOBAYASHI TOSHIO (JP)
INST APPLIED OPTICS FOUNDATION (JP)
JAPAN DRILLING CO LTD (JP)
KOGURE EIJI (JP)
KOBAYASHI TOSHIO (JP)
INST APPLIED OPTICS FOUNDATION (JP)
JAPAN DRILLING CO LTD (JP)
International Classes:
E21B7/15; E21B43/24; E21C37/16; E21C50/00; (IPC1-7): E21C50/00
Foreign References:
| JPH10317869A | 1998-12-02 | |||
| JP2000282775A | 2000-10-10 | |||
| JP2001280055A | 2001-10-10 |
Attorney, Agent or Firm:
Yen, Masaaki (2-41-305 Hiyakunin-cho 2-chome Shinjuku-ku, Tokyo, JP)
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