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The underground coal gasification First step of community collaboration; Gasification Subterranea del Carbon. Primer Intento en el Ambito de una Colaboracion Comunitaria

Abstract

The objective of the project was to demonstrate the technical feasibility of underground coal gasification in coal seams at 600 metre depth, in order to asses its potential as a means of energy exploitation in Europe. The trial was based on the use of deviated boreholes and a retractable injection system techniques, which have both been developed by the oil and gas industries. One borehole, the injection well, was drilled in the coal seam. The other, the vertical production well, was run to intercept it in the lower part of the coal seam as closely as possible, in order to construct a continuous channel for gasification. The well were completed with casing and concentric tubing to provide the necessary paths for production, injection, purging gas and cooling water flows. A coiled tubing located in the injection well was used to execute the retraction (or CRIP) manoeuvre, which is a process in which the injector head for the gasification agents, i. e. oxygen and water, and the ignitor, are directed to a specific section of the coal seam. The gasification products passes to a surface production line for flow measurement and sampling of gas and condensate products. Production gases were either  More>>
Authors:
"NONE"
Publication Date:
Jul 01, 2000
Product Type:
Technical Report
Report Number:
OCICARBON-68
Reference Number:
EDB-01:050156
Resource Relation:
Other Information: PBD: 2000
Subject:
01 COAL, LIGNITE, AND PEAT; COAL; COAL MINING; COAL GASIFICATION; INJECTION WELLS; OXYGEN; WATER; UNDERGROUND MINING; FEASIBILITY STUDIES
OSTI ID:
20118389
Country of Origin:
Spain
Language:
Spanish
Other Identifying Numbers:
TRN: ES00E0406
Availability:
Available to ETDE participating countries only(see www.etde.org); commercial reproduction prohibited; OSTI as DE20118389
Submitting Site:
SP
Size:
68 pages
Announcement Date:

Citation Formats

The underground coal gasification First step of community collaboration; Gasification Subterranea del Carbon. Primer Intento en el Ambito de una Colaboracion Comunitaria. Spain: N. p., 2000. Web.
The underground coal gasification First step of community collaboration; Gasification Subterranea del Carbon. Primer Intento en el Ambito de una Colaboracion Comunitaria. Spain.
2000. "The underground coal gasification First step of community collaboration; Gasification Subterranea del Carbon. Primer Intento en el Ambito de una Colaboracion Comunitaria." Spain.
@misc{etde_20118389,
title = {The underground coal gasification First step of community collaboration; Gasification Subterranea del Carbon. Primer Intento en el Ambito de una Colaboracion Comunitaria}
abstractNote = {The objective of the project was to demonstrate the technical feasibility of underground coal gasification in coal seams at 600 metre depth, in order to asses its potential as a means of energy exploitation in Europe. The trial was based on the use of deviated boreholes and a retractable injection system techniques, which have both been developed by the oil and gas industries. One borehole, the injection well, was drilled in the coal seam. The other, the vertical production well, was run to intercept it in the lower part of the coal seam as closely as possible, in order to construct a continuous channel for gasification. The well were completed with casing and concentric tubing to provide the necessary paths for production, injection, purging gas and cooling water flows. A coiled tubing located in the injection well was used to execute the retraction (or CRIP) manoeuvre, which is a process in which the injector head for the gasification agents, i. e. oxygen and water, and the ignitor, are directed to a specific section of the coal seam. The gasification products passes to a surface production line for flow measurement and sampling of gas and condensate products. Production gases were either flared or incinerated, while the liquids were collected for appropriate disposal. The first trial achieved its principal objectives of in seam drilling, channel communication, the CRIP manoeuvres and the gasification of significant quantity of coal. The post-gasification study also identified the shape and extent of the cavity. The study has demonstrated the technical feasibility of underground coal gasification at the intermediate depths of European coal and proposals are made for further development and semi-commercial exploitation of this promising extraction technology. (Author) 11 refs.}
place = {Spain}
year = {2000}
month = {Jul}
}