Predictive model for fracture distribution and intensity in sandstone and carbonate reservoirs, Wertz and Lost Soldier fields, Wyoming
Conference
·
OSTI ID:6591871
The Tensleep Sandstone and Madison carbonate reservoirs at Wertz and Lost Soldier fields, a southern Wyoming, were the subject of a fracture distribution study as part of a tertiary development study. A fracture classification scheme for the reservoirs was developed, and foot-by-foot fracture description of 15 cores throughout the two fields were generated. The core fracture classifications and descriptions were digitized for computer use. A computer-generated second derivative map of the Tensleep structure accurately reflected fracture distribution as described from cores in both the sandstone and carbonate reservoirs. Computer-generated crossplots of number of fractures per foot vs. a variety of petrophysical rock parameters identified structural position and lithology as the key factors governing fracture distribution and intensity in the Tensleep and Madison reservoirs. The Schlumberger long-spaced sonic composite fracture identification log (CFIL) was compared to the quantitative core fracture descriptions. Once calibrated to core data, the CFIL showed excellent agreement with the foot-by-foot core fracture descriptions in both the Tensleep and Madison reservoirs, and can be used to identify field-wide variations in fracture distribution.
- OSTI ID:
- 6591871
- Report Number(s):
- CONF-880301-
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
CARBONATE ROCKS
CENOZOIC ERA
COMPUTER GRAPHICS
COMPUTERIZED SIMULATION
DISTRIBUTION
EXPLORATION
FEDERAL REGION VIII
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FRACTURES
GEOLOGIC MODELS
GEOLOGIC STRUCTURES
GEOLOGY
GEOPHYSICS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NORTH AMERICA
PETROLEUM DEPOSITS
PETROLEUM GEOLOGY
RESERVOIR ROCK
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SIMULATION
SONIC LOGGING
SPATIAL DISTRIBUTION
TERTIARY PERIOD
USA
WELL LOGGING
WYOMING
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
CARBONATE ROCKS
CENOZOIC ERA
COMPUTER GRAPHICS
COMPUTERIZED SIMULATION
DISTRIBUTION
EXPLORATION
FEDERAL REGION VIII
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FRACTURES
GEOLOGIC MODELS
GEOLOGIC STRUCTURES
GEOLOGY
GEOPHYSICS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NORTH AMERICA
PETROLEUM DEPOSITS
PETROLEUM GEOLOGY
RESERVOIR ROCK
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SIMULATION
SONIC LOGGING
SPATIAL DISTRIBUTION
TERTIARY PERIOD
USA
WELL LOGGING
WYOMING