In Situ coal gasification burnfront mapping by monitoring reflected high frequency electromagnetic waves

Technical Report · Thu Sep 08 04:00:00 EDT 1977

OSTI ID:7289921

Davis, D T; Lytle, R J

The Lawrence Livermore Laboratory and other agencies are attempting to develop efficient methods of gasifying underground coal. In-situ conversion produces a useful energy form and is economically more attractive than mining especially in western United States coal seams, which are often very deep. LLL is conducting a series of in-situ coal gasification experiments at Hoe Creek, near Gillette, Wyoming. An ability to monitor and map the burnfront during these experiments would aid significantly in analyzing and understanding the gasification process. We analyze herein the potential of monitoring the burnfront position utilizing the reflection properties of electromagnetic waves from the interface between the coal and the gasified product, using parameter values consistent with our earlier observations at Hoe Creek.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7289921
• Report Number(s): UCRL-52325
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
COAL GASIFICATION
ELECTROMAGNETIC RADIATION
GASIFICATION
IN-SITU GASIFICATION
IN-SITU PROCESSING
MEASURING INSTRUMENTS
MONITORING
PROCESSING
RADIATIONS
REFLECTION