TOP > 外国特許検索 > METHANE GAS RECOVERY METHOD, LOW CARBON DIOXIDE EMISSION POWER GENERATION METHOD, METHANE GAS RECOVERY SYSTEM, AND LOW CARBON DIOXIDE EMISSION POWER GENERATION SYSTEM

METHANE GAS RECOVERY METHOD, LOW CARBON DIOXIDE EMISSION POWER GENERATION METHOD, METHANE GAS RECOVERY SYSTEM, AND LOW CARBON DIOXIDE EMISSION POWER GENERATION SYSTEM NEW

外国特許コード F180009545
整理番号 (S2017-0412-N0)
掲載日 2018年11月2日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2018JP007201
国際公開番号 WO 2018159594
国際出願日 平成30年2月27日(2018.2.27)
国際公開日 平成30年9月7日(2018.9.7)
優先権データ
  • 特願2017-037501 (2017.2.28) JP
発明の名称 (英語) METHANE GAS RECOVERY METHOD, LOW CARBON DIOXIDE EMISSION POWER GENERATION METHOD, METHANE GAS RECOVERY SYSTEM, AND LOW CARBON DIOXIDE EMISSION POWER GENERATION SYSTEM NEW
発明の概要(英語) A methane gas recovery method for recovering methane gas from a methane hydrate layer, wherein the methane hydrate layer is preheated by injecting heated seawater in which carbon dioxide is dissolved and that is heated into one or more injection wells that pass through the methane hydrate layer, and the methane gas is recovered from the preheated methane hydrate layer using a reduced pressure method at one or more production wells that pass through the methane hydrate layer and that are provided locations at a set distance away from the injection wells. After a set time period has passed, the injection well is used as a production well and the methane gas is recovered from the production well, and a new injection well is dug and heated seawater is injected into the injection well so as to preheat the methane hydrate layer.
従来技術、競合技術の概要(英語) BACKGROUND ART
In recent years, the conventional energy resources as alternatives to fossil fuels, methane hydrate (Methane Hydrate: MH) are noted.In particular, is the sea waters of Japan, the methane hydrate layer (hereinafter, 'MH layer' is referred to) are present, the pure methane from the recovered MH Japanese energy resources can be utilized as expected.
When the methane from the recovered MH, for example, for the recovery of methane production well is drilled to the bottom of the sea, the methane gas is from the MH, an oil or gas field is not unlike the artesian.Therefore, in recent years, for the recovery of methane from the MH various methods have been proposed.
Hydrate is, in general, the low-temperature and high pressure environment and present, to raise the temperature, or by lowering the pressure, in the dissociation of methane.Therefore, as a method for the recovery of methane, for example, by heating the methane hydrate MH layer dissociate from the heating method, by reducing the methane dissociation MH layer is divided into a pressure reducing method 2 is one approach has been proposed.
Methane recovery method of the heating method, for example as described in Patent Document 1.In the method described in Patent Document 1 to, and parallel to the layer MH drilling a well and production well and injection wells, injection wells by the heat of hot water and pressed into the methane hydrate dissociation from the recovered from the production well, heating hot water which is a kind of press-fitting method is used to recover methane gas.
On the other hand, the decompression method according to the methane recovery method, according to the number of recovered methane gas of several tens of times of the energy consumption for production energy, heating energy than in the case of using a high yield ratio.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • TOHOKU UNIVERSITY
  • 発明者(英語)
  • MARUYAMA SHIGENAO
  • OKAJIMA JUNNOSUKE
  • KOMIYA ATSUKI
  • CHEN LIN
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
ライセンスをご希望の方、特許の内容に興味を持たれた方は、下記「問合せ先」までご連絡ください。

PAGE TOP

close
close
close
close
close
close