Techniques for mapping the types, volumes, and distribution of clays in petroleum reservoirs and for determining their effects on oil production. Final report
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, Washington, DC (United States)
- DOE Contract Number:
- FC22-83FE60149
- OSTI ID:
- 10160364
- Report Number(s):
- NIPER-646; ON: DE93000143
- Resource Relation:
- Other Information: PBD: May 1993
- Country of Publication:
- United States
- Language:
- English
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Petrographic correlations and mathematical analysis of log signatures for clay identification
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Related Subjects
58 GEOSCIENCES
CLAYS
MAPPING
SANDSTONES
MINERALOGY
OIL WELLS
PRODUCTION
PROGRESS REPORT
CORRELATIONS
GAMMA LOGGING
X-RAY DIFFRACTION
DRILL CORES
QUARTZ
CALCITE
DOLOMITE
BARITE
KAOLINITE
ILLITE
SMECTITE
SIDERITE
PYRITE
EXPERIMENTAL DATA
MONTANA
WYOMING
SCANNING ELECTRON MICROSCOPY
COMPUTERIZED TOMOGRAPHY
020300
020200
580000
DRILLING AND PRODUCTION
RESERVES, GEOLOGY, AND EXPLORATION
GEOSCIENCES