Review of underground coal-gasification field experiments at Hoe Creek. [Hoe Creek 1, 2, and 3]

Conference · Wed May 26 04:00:00 EDT 1982

OSTI ID:5116655

Thorsness, C B; Creighton, J R

LLNL has conducted three underground coal gasification experiments at the Hoe Creek site near Gillette, Wyoming. Three different linking methods were used: explosive fracture, reverse burning and directional drilling. Air was injected on all three experiments and a steam/oxygen mixture during 2 days of the second and most of the third experiment. Comparison of results show that the linking method didn't influence gas quality. The heat of combustion of the product gas was higher with steam/oxygen injection, mainly because of reduced inert diluent. Gas quality was generally independent of other operating parameters, but declined from its initial value over a period of time. This was due to heat loss to the wet overburden and extensive roof collapse in the second and third experiments.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5116655
• Report Number(s): UCRL-87662; CONF-820610-8; ON: DE82015508
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
AIR
BOREHOLE LINKING
CALORIFIC VALUE
CHEMICAL REACTIONS
COAL GASIFICATION
COMBUSTION
COMBUSTION PROPERTIES
COMMINUTION
DATA
DIRECTIONAL DRILLING
DRILLING
ELEMENTS
ENERGY LOSSES
EXPERIMENTAL DATA
EXPLOSIVE FRACTURING
FEDERAL REGION VIII
FIELD TESTS
FLUIDS
FRACTURING
FUEL GAS
FUELS
GAS FUELS
GASES
GASIFICATION
GROUND SUBSIDENCE
HEAT LOSSES
IN-SITU GASIFICATION
IN-SITU PROCESSING
INFORMATION
LOSSES
MEASURING INSTRUMENTS
NONMETALS
NORTH AMERICA
NUMERICAL DATA
OXIDATION
OXYGEN
PROCESSING
REVERSE COMBUSTION
SITE SELECTION
STEAM
TESTING
THERMOCHEMICAL PROCESSES
THERMODYNAMICS
USA
WYOMING