EP1112437B1 - Procede d'extraction in situ de gaz contenu dans des veines de charbon - Google Patents

Procede d'extraction in situ de gaz contenu dans des veines de charbon Download PDF

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Publication number
EP1112437B1
EP1112437B1 EP99953624A EP99953624A EP1112437B1 EP 1112437 B1 EP1112437 B1 EP 1112437B1 EP 99953624 A EP99953624 A EP 99953624A EP 99953624 A EP99953624 A EP 99953624A EP 1112437 B1 EP1112437 B1 EP 1112437B1
Authority
EP
European Patent Office
Prior art keywords
gas
bore hole
coal
pressure
pressurization
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99953624A
Other languages
German (de)
English (en)
Other versions
EP1112437A1 (fr
Inventor
Armin LÖVENICH
Hans-Joachim Doering
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EOn Ruhrgas AG
RAG AG
Original Assignee
RAG AG
Ruhrgas AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RAG AG, Ruhrgas AG filed Critical RAG AG
Publication of EP1112437A1 publication Critical patent/EP1112437A1/fr
Application granted granted Critical
Publication of EP1112437B1 publication Critical patent/EP1112437B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/006—Production of coal-bed methane

Definitions

  • the pressurization of the borehole can be exerted by injecting water or gas.
  • water used to pressurize the borehole
  • reservoir water present in the deposit can also be pressed into the borehole or the pore structure breathing can be generated by cyclically applied pressure via the pressure excitation of the reservoir water.
  • the gas flowing into and conveying the borehole can be pressed back into the borehole for pressurizing it; alternatively, the injection of CO 2 may be provided, which the advantageous effect is that the binding of the is reduced to be conveyed methane (CH 4) to the coal on admission of CO 2, so that the relied on for pressurizing CO 2 gas also acts as a subsidy.
  • CH 4 methane

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Artificial Fish Reefs (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (7)

  1. Procédé pour l'extraction in situ de gaz à partir de filons de charbon, moyennant quoi la structure du charbon contenant du gaz est désagrégée au moyen de gaz et/ou de liquides introduits sous pression dans un trou de forage situé dans le filon de charbon pour la création de voies d'écoulement dans le charbon, et une pression inférieure à la pression de désorption respective est appliquée ensuite sur le forage pour l'extraction de gaz, moyennant quoi, pour la désagrégation du charbon, une alimentation du trou de forage, efficace pendant une période prolongée, pouvant aller d'une journée jusqu'à plusieurs jours ou semaines, est réglée avec une pression qui est inférieure à la tension principale minimale déterminée dans l'horizon de filon respectif utilisé pour l'extraction de gaz, et moyennant quoi l'alimentation du trou de forage pendant la période de désagrégation s'effectue avec une pression à variation cyclique.
  2. Procédé selon la revendication 1, caractérisé en ce que des périodes de pressurisation du trou de forage sont alternées de façon cyclique avec des périodes d'extraction de gaz pendant la période de désagrégation.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la pressurisation du trou de forage est réalisée par injection d'eau sous pression.
  4. Procédé selon la revendication 3, caractérisé en ce que de l'eau présente sous forme d'eau de gisement est injectée comme liquide sous pression.
  5. Procédé selon la revendication 1 ou 2, caractérisé en ce que la pressurisation du trou de forage est réalisée par injection de gaz sous pression.
  6. Procédé selon la revendication 5, caractérisé en ce que le gaz à extraire, arrivant au trou de forage, est utilisé pour la pressurisation du trou de forage et est réinjecté sous pression dans le trou de forage.
  7. Procédé selon la revendication 5, caractérisé en ce que du CO2 est injecté comme gaz sous pression dans le trou de forage.
EP99953624A 1998-09-02 1999-08-27 Procede d'extraction in situ de gaz contenu dans des veines de charbon Expired - Lifetime EP1112437B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19839866A DE19839866A1 (de) 1998-09-02 1998-09-02 Verfahren zur in -Situ-Förderung von Gas aus Kohleflözen
DE19839866 1998-09-02
PCT/DE1999/002693 WO2000014379A1 (fr) 1998-09-02 1999-08-27 Procede d'extraction in situ de gaz contenu dans des veines de charbon

Publications (2)

Publication Number Publication Date
EP1112437A1 EP1112437A1 (fr) 2001-07-04
EP1112437B1 true EP1112437B1 (fr) 2003-07-23

Family

ID=7879472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99953624A Expired - Lifetime EP1112437B1 (fr) 1998-09-02 1999-08-27 Procede d'extraction in situ de gaz contenu dans des veines de charbon

Country Status (8)

Country Link
US (1) US6571874B1 (fr)
EP (1) EP1112437B1 (fr)
CN (1) CN1097136C (fr)
DE (2) DE19839866A1 (fr)
ES (1) ES2204166T3 (fr)
PL (1) PL346410A1 (fr)
RU (1) RU2206718C2 (fr)
WO (1) WO2000014379A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10159311B4 (de) * 2001-08-03 2007-02-01 Wolfgang Herr In-situ Verdampfung
US6877566B2 (en) * 2002-07-24 2005-04-12 Richard Selinger Method and apparatus for causing pressure variations in a wellbore
US20050082058A1 (en) * 2003-09-23 2005-04-21 Bustin Robert M. Method for enhancing methane production from coal seams
AU2006279679B2 (en) * 2005-08-12 2011-08-04 University Of Wyoming Research Corporation D/B/A Western Research Institute Biogenic methane production enhancement systems
US8256282B2 (en) * 2007-07-19 2012-09-04 Schlumberger Technology Corporation In situ determination of critical desorption pressures
CN102137985B (zh) 2008-07-02 2014-10-01 西里斯能源公司 优化含碳岩层的现场生物转化的方法
CN101539008B (zh) * 2009-04-14 2012-04-04 赵万福 煤层气地面立体排采方法
AU2010332294C1 (en) 2009-12-18 2015-06-18 Ciris Energy, Inc. Biogasification of coal to methane and other useful products
WO2013005082A1 (fr) * 2011-07-07 2013-01-10 Seeden Foundation Appareil et procédé pour améliorer la production de pétrole par génération d'ondes de choc
CN103670338B (zh) * 2012-09-21 2016-06-15 新奥气化采煤有限公司 一种煤层气与煤共采方法
RU2524583C1 (ru) * 2013-03-25 2014-07-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный минерально-сырьевой университет "Горный" Способ интенсификации добычи природного газа из угольных пластов через скважины
RU2625829C2 (ru) * 2015-12-30 2017-07-19 Федеральное государственное бюджетное учреждение науки Институт проблем нефти и газа Российской академии наук (ИПНГ РАН) Способ разработки залежи углеводородов в низкопроницаемых отложениях
CN109026128A (zh) * 2018-06-22 2018-12-18 中国矿业大学 多级燃烧冲击波致裂煤体与注热交变强化瓦斯抽采方法
CN115163021B (zh) * 2022-07-13 2023-11-03 中国矿业大学 一种注水注氮抽采瓦斯封孔装置及钻孔布置方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794116A (en) * 1972-05-30 1974-02-26 Atomic Energy Commission Situ coal bed gasification
US5014788A (en) * 1990-04-20 1991-05-14 Amoco Corporation Method of increasing the permeability of a coal seam
US5388643A (en) * 1993-11-03 1995-02-14 Amoco Corporation Coalbed methane recovery using pressure swing adsorption separation
US5566755A (en) 1993-11-03 1996-10-22 Amoco Corporation Method for recovering methane from a solid carbonaceous subterranean formation
US5388640A (en) * 1993-11-03 1995-02-14 Amoco Corporation Method for producing methane-containing gaseous mixtures
US5411098A (en) * 1993-11-09 1995-05-02 Atlantic Richfield Company Method of stimulating gas-producing wells
US5419396A (en) * 1993-12-29 1995-05-30 Amoco Corporation Method for stimulating a coal seam to enhance the recovery of methane from the coal seam
US6412559B1 (en) * 2000-11-24 2002-07-02 Alberta Research Council Inc. Process for recovering methane and/or sequestering fluids

Also Published As

Publication number Publication date
PL346410A1 (en) 2002-02-11
CN1320189A (zh) 2001-10-31
ES2204166T3 (es) 2004-04-16
EP1112437A1 (fr) 2001-07-04
DE59906375D1 (de) 2003-08-28
RU2206718C2 (ru) 2003-06-20
WO2000014379A1 (fr) 2000-03-16
DE19839866A1 (de) 2000-03-09
US6571874B1 (en) 2003-06-03
CN1097136C (zh) 2002-12-25

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