Site selection and characterization for an underground coal gasification process
Geologic and hydrogeologic features influence the success of the underground coal gasification (UCG) process. It is desirable to perform the UCG process at sites having optimal conditions, or at least the site detailed to take advantage of geologic and hydrogeologic features. A site selection and characterization program is taking place in the State of Washington and elements of this program are outlined in this paper. The selection and characterization studies for a commercial UCG process need to be economical which precludes the extensive use of borehole surveys. The program outlined helps to establish criteria for the use of less expensive surface techniques in the initial site selection and characterization phases for a commercial process and to establish adequate characterization procedures which require a minimum number of boreholes. Examples will be given of information obtained from surface geophysical techniques employed at the Hanna IV site and the Gulf site west of Rawlins, WY, and examples will also be given of information that can be obtained from well logs.
- Research Organization:
- Sandia Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- EY-76-C-04-0789
- OSTI ID:
- 5970338
- Report Number(s):
- SAND-79-1022C; CONF-791107-1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010404* -- Coal
Lignite
& Peat-- Gasification
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
BOREHOLES
CAVITIES
COAL GASIFICATION
GASIFICATION
GEOLOGY
GEOPHYSICAL SURVEYS
HYDROLOGY
IN-SITU GASIFICATION
IN-SITU PROCESSING
LITHOLOGY
PROCESSING
SEISMIC SURVEYS
SITE SELECTION
THERMOCHEMICAL PROCESSES
WELL LOGGING