Explosively produced fracture of oil shale. Progress report, January-March 1982
The Los Alamos National Laboratory is conducting rock fragmentation research in oil shale to develop the blasting technologies and designs required to prepare a rubble bed for a modified in situ retort. The first section of this report presents a mid-FY review of our rock fragmentation program. It outlines our experimental work with the Oil Shale Consortium at the Anvil Points Mine in Colorado, detailing experiment schedules, general results, and site geology. It also describes our current and planned computer modeling development for rock fracture, tracer flow, oil shale retorting, and retort stability. The second section presents three papers on computer modeling and theory. The first details our progress in understanding rock breakage through computer simulations of multiple-borehole blasting designs that are compared with field experiment results. The second considers the propagation of a penny-shaped crack in a triaxial state of stress and the effect of fragmentation on the stability of closed cracks in normal compressions. The final paper discusses a revision of the rate formulation of the constitutive law for a flawed material. 16 figures.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 7016520
- Report Number(s):
- LA-9441-PR; ON: DE83002303
- Country of Publication:
- United States
- Language:
- English
Similar Records
Explosively produced fracture of oil shale. Progress report, October-December 1982
Explosively produced fracture of oil shale. Progress report, July-September 1982
Related Subjects
040300* -- Oil Shales & Tar Sands-- Drilling
Fracturing & Mining
BITUMINOUS MATERIALS
BOREHOLES
CARBONACEOUS MATERIALS
CAVITIES
CHEMICAL REACTORS
COMMINUTION
COMPUTERIZED SIMULATION
CRACK PROPAGATION
DEFECTS
DISTILLATION EQUIPMENT
ENERGY SOURCES
EQUATIONS
EQUIPMENT
EXPLOSIVE FRACTURING
FOSSIL FUELS
FRACTURING
FRAGMENTATION
FUELS
GEOLOGIC DEPOSITS
MATERIALS
MINERAL RESOURCES
MODIFIED IN-SITU PROCESSES
OIL SHALE DEPOSITS
OIL SHALES
RESEARCH PROGRAMS
RESOURCES
RETORTS
SIMULATION
STABILITY