Modeling the underground coal gasification process: part III-subsidence

Journal Article · Sat Jan 01 04:00:00 EST 1983 · ACS Symp. Ser.; (United States)

OSTI ID:6336264

Krantz, W B; Gunn, R D

The cavity created by underground coal gasification (UCG) will be associated with some degree of subsidence in the overburden above the cavity. Subsidence refers to the adjustment in the earth which is made in response to the creation of a subsurface cavity. This subsidence can take a variety of forms, some of which can cause considerable damage both to the environment and to the UCG process and associated equipment. This article reviews the physical and geometrical factors which must be considered in subsidence modeling and the empirical, analytical, numerical, and phenomenological approaches used to model subsidence in UCG. Finally, the results of applying these subsidence models to UCG field tests are reviewed.

• Research Organization: Department of Chemical Engineering, University of Colorado, Boulder, CO
• OSTI ID: 6336264
• Journal Information: ACS Symp. Ser.; (United States), Journal Name: ACS Symp. Ser.; (United States) Vol. 79:226; ISSN ACSMC
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
CARBONACEOUS MATERIALS
CAVITIES
COAL
ENERGY SOURCES
ENVIRONMENTAL IMPACTS
FOSSIL FUELS
FUELS
GASIFICATION
GROUND SUBSIDENCE
IN-SITU GASIFICATION
IN-SITU PROCESSING
MATERIALS
MATHEMATICAL MODELS
OVERBURDEN
PROCESSING
SIMULATION
THERMOCHEMICAL PROCESSES