Northwest asphalt ridge tar sand deposit well logging and coring comparison
Technical Report
·
OSTI ID:6401846
Quantitative well logging techniques were performed on four wells used to conduct a small scale tar sand steam flood and four additional wells used to provide reservoir data for the design of a fourth field experiment near Vernal, Utah. The purposes of this study were to: summarize and present the log derived information; determine how accurately the log data matched the core data; and estimate values for R/sub w/ in the Rimrock Sandstone Member. A gamma, sidewall neutron, density, SP, induction and caliper log suite was utilized in determining porosity and water saturations. A sonic log was utilized in determining the elastic rock properties; pressure velocity, shear velocity, Young's modulus and Poisson's ratio. Carbon/oxygen logs were also run to determine hydrocarbon. The density log was determined to be the best logging source of porosity. Crossplotting and shale corrections did not improve the porosity quality. Formation water resistivity was estimated from the Archie equation using the core porosity and water saturations and using the induction log formation resistivity. Generally, good porosity information was determined from the density log. Water saturations were acceptable but did not match the core data as well as desired. Elastic rock properties derived from the sonic logs also matched core derived values. Carbon/oxygen logs have proven to be a good method of detecting changes in formation oil saturation. Oil saturation values derived from the carbon/oxygen log may be conservative due to a lack of a clean unsaturated sandstone zone to use as a reference point.
- Research Organization:
- Department of Energy, Laramie, WY (USA). Laramie Energy Technology Center
- OSTI ID:
- 6401846
- Report Number(s):
- DOE/LC/RI-83-3; ON: DE83009233
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
04 OIL SHALES AND TAR SANDS
040201* -- Oil Shales & Tar Sands-- Site Geology-- (-1989)
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
ENERGY SOURCES
ENGINEERING
FEDERAL REGION VIII
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
MATERIALS
MECHANICAL PROPERTIES
NORTH AMERICA
OIL SAND DEPOSITS
OIL SANDS
OIL SATURATION
POISSON RATIO
POROSITY
RESERVOIR ENGINEERING
SATURATION
SHEAR PROPERTIES
USA
UTAH
WATER SATURATION
WELL LOGGING
WELLS
YOUNG MODULUS
040201* -- Oil Shales & Tar Sands-- Site Geology-- (-1989)
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
ENERGY SOURCES
ENGINEERING
FEDERAL REGION VIII
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
MATERIALS
MECHANICAL PROPERTIES
NORTH AMERICA
OIL SAND DEPOSITS
OIL SANDS
OIL SATURATION
POISSON RATIO
POROSITY
RESERVOIR ENGINEERING
SATURATION
SHEAR PROPERTIES
USA
UTAH
WATER SATURATION
WELL LOGGING
WELLS
YOUNG MODULUS