Process and technology development activities for in situ coal gasification, FY83

Technical Report · Thu Dec 01 04:00:00 EST 1983

OSTI ID:5701405

Glass, R E ^[1]

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1. ed.

As part of DOE's Underground Coal Gasification Program, activities at Sandia National Laboratories have been directed at Process and Technology Development. The project areas include (1) the development of a cornering water jet drill for use in linking vertical wells in Underground Coal Gasification (UCG) tests; (2) the development of a controlled source audio-frequency magnetotelluric (CSAMT) surface geophysical technique for monitoring the process, and (3) the development of models for use in predicting surface subsidence and cavity growth. The accomplishments for the year include (1) the successful completion of the high wall tests of the cornering water jet drill, (2) the start of the down hole tests including completion of the vertical hole and underreamed volume, testing of the sump pump and initial drilling to a hole length of three meters, (3) the preliminary CSAMT survey of the Tono partial seam controlled reacting injection point (CRIP) test area, (4) the development of a data acquisition and analysis system for the CSAMT technique, (5) the development of a predictive model for subsidence and cavity growth and their application to the partial seam CRIP test.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5701405
• Report Number(s): SAND-83-2041; ON: DE84003971
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
BOREHOLE LINKING
COAL GASIFICATION
DATA
DATA ACQUISITION SYSTEMS
DATA ANALYSIS
DRILLING EQUIPMENT
EQUIPMENT
EXPERIMENTAL DATA
FORECASTING
GASIFICATION
GEOPHYSICAL SURVEYS
GROUND SUBSIDENCE
GROWTH
IN-SITU GASIFICATION
IN-SITU PROCESSING
INFORMATION
MATHEMATICAL MODELS
MONITORING
NUMERICAL DATA
PROCESSING
RESEARCH PROGRAMS
SURVEYS
THERMOCHEMICAL PROCESSES