Change in mechanical properties of Antrim oil shale on retorting
This work summarizes a comprehensive laboratory investigation on the changes in mechanical properties of Antrim oil shale on retorting at 500/sup 0/C. Kerogen plays an important role in the change of the properties on retorting. When subjected to heat, the degree of deformation, the extent of fracturing and the structural instability of the specimens appeared to be strongly dependent upon kerogen content. The values of elastic modulus, strength, and density decreased whereas maximum strain at failure increased on retorting. Significant increases in permeability and porosity also resulted from retorting. The most pronounced increase was observed in the permeability in the direction parallel to bedding which exceeded in some cases as much as 3 orders of magnitude. Microscopic observations of pore structures provided a qualitative support to data obtained in measurements of porosity and permeability. 10 references.
- OSTI ID:
- 5910907
- Journal Information:
- 20th US Rock Mechanics Symp.; (), Journal Name: 20th US Rock Mechanics Symp.; ()
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effects of overburden pressure on oil shale during underground retorting
Mechanical characteristics of Antrim shale. Interim report, April 1977--January 1978
Related Subjects
040402 -- Oil Shales & Tar Sands-- Surface Methods
040500* -- Oil Shales & Tar Sands-- Properties & Composition
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
DATA
DECOMPOSITION
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
INFORMATION
KEROGEN
MATERIALS
MECHANICAL PROPERTIES
MECHANICS
MINERAL RESOURCES
NUMERICAL DATA
OIL SHALE DEPOSITS
OIL SHALES
ORGANIC MATTER
PERMEABILITY
POROSITY
RESOURCES
RETORTING
ROCK MECHANICS
TEMPERATURE EFFECTS
VARIATIONS