Techniques for mapping the types, volumes, and distribution of clays in petroleum reservoirs and for determining their effects on oil production
This report presents the results of correlation of log signatures with information on distribution of the types and volumes of clays in sandstone pore spaces determined from detailed CT-scan, XRD, SEM, and thin section analyses of core samples from three sandstone reservoirs. The log signatures are then analyzed to determine if suitable mathematical/statistical parameter(s) could be calculated from the logs to determine their effects on permeability and oil production. The variability measures obtained from power spectral analysis of permeability and wireline log data in clayey formations have been correlated with oil production from two oil fields. Compared with the conventional measures of permeability variations like the Dykstra-Parsons coefficients, the new measure appears to correlate better with oil production.
- Research Organization:
- National Inst. for Petroleum and Energy Research, Bartlesville, OK (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC22-83FE60149
- OSTI ID:
- 6512563
- Report Number(s):
- NIPER-646; ON: DE93000143
- Country of Publication:
- United States
- Language:
- English
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Petrographic correlations and mathematical analysis of log signatures for clay identification
Petrographic correlations and mathematical analysis of log signatures for clay identification
Related Subjects
58 GEOSCIENCES
CLAYS
MAPPING
OIL WELLS
PRODUCTION
SANDSTONES
MINERALOGY
BARITE
CALCITE
COMPUTERIZED TOMOGRAPHY
CORRELATIONS
DOLOMITE
DRILL CORES
EXPERIMENTAL DATA
GAMMA LOGGING
ILLITE
KAOLINITE
MONTANA
PROGRESS REPORT
PYRITE
QUARTZ
SCANNING ELECTRON MICROSCOPY
SIDERITE
SMECTITE
WYOMING
X-RAY DIFFRACTION
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATES
COHERENT SCATTERING
DATA
DEVELOPED COUNTRIES
DIAGNOSTIC TECHNIQUES
DIFFRACTION
DOCUMENT TYPES
ELECTRON MICROSCOPY
INFORMATION
IRON CARBONATES
IRON COMPOUNDS
IRON ORES
MICROSCOPY
MINERALS
NORTH AMERICA
NUMERICAL DATA
ORES
OXIDE MINERALS
OXYGEN COMPOUNDS
RADIOACTIVITY LOGGING
ROCKS
SCATTERING
SEDIMENTARY ROCKS
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
SULFATE MINERALS
SULFIDE MINERALS
TOMOGRAPHY
TRANSITION ELEMENT COMPOUNDS
USA
WELL LOGGING
WELLS
020300* - Petroleum- Drilling & Production
020200 - Petroleum- Reserves
Geology
& Exploration
580000 - Geosciences