WO2002050399A1 - Systeme de recuperation electromagnetique de gaz d'une veine de charbon - Google Patents

Systeme de recuperation electromagnetique de gaz d'une veine de charbon Download PDF

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Publication number
WO2002050399A1
WO2002050399A1 PCT/US2001/049083 US0149083W WO0250399A1 WO 2002050399 A1 WO2002050399 A1 WO 2002050399A1 US 0149083 W US0149083 W US 0149083W WO 0250399 A1 WO0250399 A1 WO 0250399A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
earth
gas
electromagnetic energy
proximal end
Prior art date
Application number
PCT/US2001/049083
Other languages
English (en)
Inventor
Raymond S. Kasevich
Original Assignee
Kai Technologies, Inc.
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 Kai Technologies, Inc. filed Critical Kai Technologies, Inc.
Priority to US10/450,967 priority Critical patent/US7055599B2/en
Priority to AU2002239647A priority patent/AU2002239647A1/en
Publication of WO2002050399A1 publication Critical patent/WO2002050399A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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

  • a system for recovering gas trapped within the earth includes a casing sized and configured to be positioned within a borehole in the earth, the casing formed of a material that is transmissive to electromagnetic energy and gas within the earth, and an antenna sized and configured to be positioned within the casing.
  • the antenna includes a radiating element at a distal end of the antenna which, in operation, transmits electromagnetic energy toward a desired area of the earth, and an interior channel for allowing gas to be conveyed from the distal end to a proximal end of the antenna.
  • antennas in a vertical or horizontal bore hole drilled in a coal seam radiate electromagnetic energy away from the antenna into the coal creating a dry region around the bore hole/antenna structure.
  • a pump can be used in conjunction with the antenna for water removal or the bore hole containing the antenna may be pressurized to keep the water away from the antennabore hole.
  • a special gas filtering system can be employed around the antenna (within or outside the bore hole) to permit gas recovery up the antenna bore hole without water. This special filter would block liquid water and allow only gas to pass through it.
  • the dry region around the antenna borehole created by dielectric heating of the coal/water matrix is maintained by the power supplied by the antenna (e.g., 3 to 20 kilowatts on average). This dry region, maintained by either resistive (low frequency) currents or dielectric

Abstract

L'invention concerne un système destiné à la récupération de gaz emprisonné dans la terre, comprenant un boîtier (24) présentant des dimensions précises, conçu pour être placé dans un puits dans la terre, ce boîtier (24) étant fabriqué à partir d'un matériau permettant le transport de l'énergie électromagnétique et du gaz dans la terre, et une antenne (40) de dimensions précises, conçue pour être placée dans le boîtier (24). L'antenne (40) comprend une extrémité distale, une extrémité proximale, un élément rayonnant situé à l'extrémité distale de l'antenne (40) qui, lors du fonctionnement de l'antenne, permet d'émettre de l'énergie électromagnétique vers une zone désirée de la terre, ainsi qu'un canal interne destiné à l'acheminement du gaz entre l'extrémité distale et l'extrémité proximale de l'antenne (40).
PCT/US2001/049083 2000-12-18 2001-12-18 Systeme de recuperation electromagnetique de gaz d'une veine de charbon WO2002050399A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/450,967 US7055599B2 (en) 2001-12-18 2001-12-18 Electromagnetic coal seam gas recovery system
AU2002239647A AU2002239647A1 (en) 2000-12-18 2001-12-18 Electromagnetic coal seam gas recovery system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25636700P 2000-12-18 2000-12-18
US60/256,367 2000-12-18

Publications (1)

Publication Number Publication Date
WO2002050399A1 true WO2002050399A1 (fr) 2002-06-27

Family

ID=22971987

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/049083 WO2002050399A1 (fr) 2000-12-18 2001-12-18 Systeme de recuperation electromagnetique de gaz d'une veine de charbon

Country Status (2)

Country Link
AU (1) AU2002239647A1 (fr)
WO (1) WO2002050399A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012173921A3 (fr) * 2011-06-17 2013-09-12 Harris Corporation Traitement thermique électromagnétique fournissant une récupération d'huile améliorée

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817711A (en) * 1987-05-27 1989-04-04 Jeambey Calhoun G System for recovery of petroleum from petroleum impregnated media
US5055180A (en) * 1984-04-20 1991-10-08 Electromagnetic Energy Corporation Method and apparatus for recovering fractions from hydrocarbon materials, facilitating the removal and cleansing of hydrocarbon fluids, insulating storage vessels, and cleansing storage vessels and pipelines
US6189611B1 (en) * 1999-03-24 2001-02-20 Kai Technologies, Inc. Radio frequency steam flood and gas drive for enhanced subterranean recovery

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5055180A (en) * 1984-04-20 1991-10-08 Electromagnetic Energy Corporation Method and apparatus for recovering fractions from hydrocarbon materials, facilitating the removal and cleansing of hydrocarbon fluids, insulating storage vessels, and cleansing storage vessels and pipelines
US4817711A (en) * 1987-05-27 1989-04-04 Jeambey Calhoun G System for recovery of petroleum from petroleum impregnated media
US4912971A (en) * 1987-05-27 1990-04-03 Edwards Development Corp. System for recovery of petroleum from petroleum impregnated media
US6189611B1 (en) * 1999-03-24 2001-02-20 Kai Technologies, Inc. Radio frequency steam flood and gas drive for enhanced subterranean recovery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012173921A3 (fr) * 2011-06-17 2013-09-12 Harris Corporation Traitement thermique électromagnétique fournissant une récupération d'huile améliorée
US8701760B2 (en) 2011-06-17 2014-04-22 Harris Corporation Electromagnetic heat treatment providing enhanced oil recovery

Also Published As

Publication number Publication date
AU2002239647A1 (en) 2002-07-01

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