Numerical modeling of subsidence induced by underground coal gasification, including thermal effects

Journal Article · Sat Jan 01 04:00:00 EST 1983 · In Situ; (United States)

OSTI ID:6207876

Stephenson, D E; Dass, S T; Shaw, D E

Subsidence effects induced by underground coal gasification can lead to potential environmental problems relative to ground surface subsidence and aquifer disruption as well as impacting upon the UCG process itself. Using a finite-element model that included the effects of discontinuities and bedding plant slip, subsidence with and without the effects of thermal conditions based on the geological characteristics of the San Juan basin of northwestern New Mexico was studied. For a proposed UCG operation at a depth of about 850 ft, the predicted results indicate that subsidence will occur at the surface.

• Research Organization: D'Appolonia Consulting Engineers, Inc., Pittsburgh, PA
• OSTI ID: 6207876
• Journal Information: In Situ; (United States), Journal Name: In Situ; (United States) Vol. 7:1; ISSN ISOMD
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
510500 -- Environment
Terrestrial-- Site Resource & Use Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
AQUIFERS
COAL GASIFICATION
FINITE ELEMENT METHOD
FORECASTING
GASIFICATION
GROUND SUBSIDENCE
IN-SITU GASIFICATION
IN-SITU PROCESSING
LEVELS
MATHEMATICAL MODELS
NUMERICAL SOLUTION
PROCESSING
THERMOCHEMICAL PROCESSES
UNDERGROUND