Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1979000224) METHOD OF UNDERGROUND GASIFICATION OF COMBUSTIBLE MINERALS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000224 International Application No.: PCT/SU1978/000001
Publication Date: 03.05.1979 International Filing Date: 20.10.1978
IPC:
E21B 43/247 (2006.01) ,E21B 43/30 (2006.01)
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
43
Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
16
Enhanced recovery methods for obtaining hydrocarbons
24
using heat, e.g. steam injection
243
Combustion in situ
247
in association with fracturing processes
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
43
Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
30
Specific pattern of wells, e.g. optimizing the spacing of wells
Applicants:
Inventors:
Priority Data:
253586021.10.1977SU
Title (EN) METHOD OF UNDERGROUND GASIFICATION OF COMBUSTIBLE MINERALS
(FR) PROCEDE DE GAZEIFICATION SOUTERRAINE DE MINERAUX COMBUSTIBLES
Abstract:
(EN) When processing combustible minerals by way of underground gasification, holes (1-4) are drilled in the seam to be gasified, e.g., a coal seam; these holes being interconnected with gasification channels. The combustible mineral is fired and the oxygen blast is forced into certain holes which results in the creation of generator gas. Simultaneously, a blast containing carbon and/or hydrogen is forced into other holes to enrich the generator gas with combustible components. This results in chemical reactions leading to the creation of an additional quantity of combustible components, thus increasing the heat value of the extracted gas. The method also permits the adjustment of the composition of the extracted generator gas by changing the proportions of the blast components.
(FR) Lors du traitement de mineraux combustibles par gazeification souterraine, on perce des trous (14) dans la veine a gaseifier, par exemple une veine de charbon; ces trous etant relies entre eux par des canaux de gazeification. Les mineraux combustibles sont enflammes et le courant d"oxygene est force dans certains trous, ce qui engendre du gaz de gazogene. Simultanement, un courant gazeux contenant du carbone et/ou de l"hydrogene est force dans les autres trous pour enrichir le gaz en composants combustibles. Ceci donne lieu a des reactions chimiques qui augmentent la quantite de composants combustibles, augmentant ainsi le pouvoir calorifique du gaz de gazogene extrait, ce procede permet egalement d"ajuster la composition du gaz extrait en modifiant les proportions des composants contenus dans le courant gazeux.
Designated States:
Publication Language: Russian (RU)
Filing Language: Russian (RU)
Also published as:
BRPI7808698US4440224DE000002857077DE000002857077