Fischer assay analyses of the Antrim Oil Shale of the Michigan Basin

Technical Report · Fri Aug 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/5121297· OSTI ID:5121297

Leffert, C. B.; Schroeder, R. R.

Modified Fischer Assays were run and are reported on 841 samples of Antrim Oil Shale. These samples were taken from 31 wells and 9 outcrop locations throughout the Michigan Basin. Yields in both weight percent of oil, water, spent shale, gas plus loss and in gal/ton of oil and water and oil specific gravity are tabulated. Procedures, apparatus and instrumentation adapted for this work were shown by comparison tests and by repetitive assays to be accurate and precise. Data recording, calculations, data storage and plotting were all done using computer programs, files and tapes. The oil yield in gal/ton of shale is plotted versus drillers depth in feet for each of the 31 wells and for three cross sections across the Michigan Basin. The average oil yields for these three cross sections were: Northern, 4.78 gal/ton; Central, 4.49 gal/ton; and Southern, 4.64 gal/ton. The average oil yield was 4.67 gal/ton. Probability density curves resembled a Gaussian-type distribution with an added spike of near-zero yield material which was attributed to a small amount of sampling above and below the Antrim formation and the intrusion of some noncarbonaceous material into the Antrim in some locations. The density function for the entire formation showed fractional yields of oil of only 20% > 7.0 gal/ton, 15% > 8.0 gal/ton and 5.0% > 11 gal/ton. The average oil yield represents for an estimated 44,500 square miles of the Michigan Basin the potential of 2.8 trillion barrels of Fischer Assay extractable oil.

• Research Organization: Wayne State Univ., Detroit, MI (USA)
• DOE Contract Number: AC01-76ET12153
• OSTI ID: 5121297
• Report Number(s): FE-2346-83
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
BLACK SHALES
OIL YIELDS
OIL SHALES
DATA
DEPTH
DISTRIBUTION
FISCHER ASSAY
MICHIGAN
PROBABILITY
STATISTICS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHATTANOOGA FORMATION
DIMENSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GREAT LAKES REGION
INFORMATION
MATHEMATICS
NORTH AMERICA
USA
YIELDS
040500* - Oil Shales & Tar Sands- Properties & Composition