Hoe Creek No. 3 pre operational report

Technical Report · Fri Dec 29 04:00:00 EST 1978

OSTI ID:6399151

Hill, R W

The basic goal of the LLL In-Situ Coal Gasification Project is to develop a process for producing medium heating value gas that can be an economical source of pipeline quality gas (SNG). The gas produced by gasifying coal with air is contaminated with the nitrogen contained in the air, thus lowering the heating value. Although it is possible to remove the nitrogen from the product, it is more economical to remove the nitrogen from the air and use oxygen as the injectant. Our first two field experiments were designed to test two different coal permeability enhancement techniques, explosive fracturing in the case of Hoe Creek No. 1 and reverse combustion linking in Hoe Creek No. 2. Both were air burns for reasons of economy. Hoe Creek No. 3 is to be our first full oxygen gasification. The major goals of this experiment are to: carry out forward gasification with a known, reliable link at the bottom of the coal seam; determine steam/oxygen gasification efficiencies at coal consumption rates up to 100 tons/day; gasify at commercial process well spacings (100--200 ft); determine burn zone configuration;minimize gas losses and water influx; and determine water quality and subsidence effect. The underground thermal and pressure instrumentation, gas analysis equipment and data acquisition systems are described. (LTN)

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6399151
• Report Number(s): UCID-18013
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
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47 OTHER INSTRUMENTATION
BOREHOLE LINKING
COAL GASIFICATION
CRYOGENIC FLUIDS
DATA ACQUISITION SYSTEMS
ELEMENTS
FLUIDS
GASIFICATION
IN-SITU GASIFICATION
IN-SITU PROCESSING
MEASURING INSTRUMENTS
NONMETALS
NORTH AMERICA
OXYGEN
PLANNING
PROCESSING
ROCKY MOUNTAIN REGION
THERMOCHEMICAL PROCESSES
USA
WYOMING