LLL in situ coal gasification project. Quarterly progress report, July--September 1978. [Hoe Creek No. 3]

Technical Report · Fri Dec 01 04:00:00 EST 1978

OSTI ID:6513897

Olness, D U; Minkel, K J ^[1]

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1. eds.

We have developed the preoperational plans for conducting the Hoe Creek No. 3 underground gasification experiment. Because the major goal of Hoe Creek No. 3 is a successful steam--oxygen forward burn, it is necessary to ensure a proper linking channel. We constructed a directionally drilled channel over 200 ft near the bottom of the Felix No. 2 coal seam. To increase this channel's air acceptance, we will enlarge it with reverse combustion. A short period of forward burn with air injection will be used to establish a hot burn zone at the bottom of the coal seam before oxygen--steam injection is started in well A. The thermal instrumentation will be similar to that used on Hoe Creek No. 2. The data acquisition and storage system will build upon the computer operating system for Hoe Creek No. 2. The state of the process beneath the ground will be monitored with various diagnostic tools. Flow rates of all streams entering or leaving the system will be computed and their compositions determined. Hoe Creek No. 3 will use an extensive gas analysis program designed to automatically determine the composition of the process stream and report to the field computer. This analysis will be on-line so the information can be used to better control the gasification process.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6513897
• Report Number(s): UCRL-50026-78-3
• 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
BOREHOLE LINKING
CHEMICAL REACTIONS
COAL GASIFICATION
COMBUSTION
DATA ACQUISITION SYSTEMS
GASIFICATION
IN-SITU GASIFICATION
IN-SITU PROCESSING
MEASURING INSTRUMENTS
OXIDATION
PLANNING
PROCESSING
REVERSE COMBUSTION
THERMOCHEMICAL PROCESSES