Wireline well logging an underutilized technique in reservoir evaluation
Wireline well logs have three general uses in geothermal exploration and reservoir evaluation: reservoir parameter analysis, lithologic column determination, and reservoir size resolution. Reservoir flow testing data are acquired to understand the flow rate, life, and production potential of the geothermal reservoir. These data are a coarse subsurface measurement of the geothermal prospect. Wireline logs acquired from wells in a geothermal prospect are used to define in detail, or estimate the reservoir parameters of temperature, thickness, lateral size, amount of fracture and intergranular pore space, and the quantity and quality of fluid that might be produced. Laboratory measurements can be made on core samples and drill cuttings samples to define the intrinsic behavior of the materials and fluid that compose the geotheraml reservoir. Wireline log measurements are needed to correlate and link the reservoir testing and core analysis, reduce the amount of time needed for flow testing, and predict the production life (amount of heat and fluid available) in a geothermal field.
- Research Organization:
- Los Alamos Scientific Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6206521
- Report Number(s):
- LA-UR-81-1956; CONF-811015-9; ON: DE81025358
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
150303* -- Geothermal Exploration & Exploration Technology-- Exploratory Drilling & Well Logging
CALIBRATION
DIMENSIONS
DRILL CORES
ENGINEERING
FAILURES
FRACTURES
GEOTHERMAL SYSTEMS
GEOTHERMAL WELLS
Geothermal Legacy
RESERVOIR ENGINEERING
RESERVOIR TEMPERATURE
RESOURCE ASSESSMENT
THICKNESS
WELL LOGGING
WELLS