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The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

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The Effect of In situ Retorting on Oil Shale Pillars.

PB82214099

Publication Date	1981
Personal Author	Ozdemir, L.; Ropchan, D.; Miller, R.; Wang, F. D.; Sladek, T.
Page Count	389
Abstract	An investigation was made to determine the mechanical properties of oil shale at elevated temperatures and confining pressures, the thermal properties at elevated temperatures, and to provide mathematical models for mine design for in situ oil shale retorting. A review of current activity in in situ retorting is included with a comprehensive list of references. Tests were run at temperatures from 20 to 500C and confining pressures to 1,500 psi with shale of 10 to 30 gal per ton.
Keywords	Oil shale Mechanical properties Thermodynamic properties Compressive strength Physical properties In-situ retorting
Source Agency	Bureau of Mines
NTIS Subject Category	97K - Fuels 48A - Mineral Industries
Corporate Authors	Colorado School of Mines, Golden. Excavation Engineering and Earth Mechanics Inst.; Bureau of Mines, Washington, DC.
Supplemental Notes	Color illustrations reproduced in black and white.
Document Type	Technical Report
Title Note	Open file rept. 28 Jun 76-31 May 81.
NTIS Issue Number	198219
Contract Number	H0262031

The Effect of In situ Retorting on Oil Shale Pillars.

The Effect of In situ Retorting on Oil Shale Pillars.
PB82214099

Publication Date	1981
Personal Author	Ozdemir, L.; Ropchan, D.; Miller, R.; Wang, F. D.; Sladek, T.
Page Count	389
Abstract	An investigation was made to determine the mechanical properties of oil shale at elevated temperatures and confining pressures, the thermal properties at elevated temperatures, and to provide mathematical models for mine design for in situ oil shale retorting. A review of current activity in in situ retorting is included with a comprehensive list of references. Tests were run at temperatures from 20 to 500C and confining pressures to 1,500 psi with shale of 10 to 30 gal per ton.
Keywords	Oil shale Mechanical properties Thermodynamic properties Compressive strength Physical properties In-situ retorting
Source Agency	Bureau of Mines
NTIS Subject Category	97K - Fuels 48A - Mineral Industries
Corporate Authors	Colorado School of Mines, Golden. Excavation Engineering and Earth Mechanics Inst.; Bureau of Mines, Washington, DC.
Supplemental Notes	Color illustrations reproduced in black and white.
Document Type	Technical Report
Title Note	Open file rept. 28 Jun 76-31 May 81.
NTIS Issue Number	198219
Contract Number	H0262031