Research on the physical properties of geothermal reservoir rocks. Final report
Variation of P-wave velocities and electrical resistivities of several suites of water-saturated recent volcanics was investigated. Both P-velocities and resistivities exhibited strong dependence on porosity. Resistivity was also dependent upon degree of water saturation and temperature. P-wave velocities, while showing a strong dependence on porosity, appear to be independent of water saturation and temperature. Volcanics, in general, exhibit higher resistivities compared to other igneous rocks and sediments. Electric resistivity of fine-grained basalts is anomalously low, probably due to higher content of disseminated iron. Pyroclastics and volcanic breccia, on the other hand, exhibit higher resistivities in relation to fine-grained basalts.
- Research Organization:
- Colorado School of Mines, Golden (USA). Dept. of Geophysics
- DOE Contract Number:
- AC02-76ET28366
- OSTI ID:
- 6666116
- Report Number(s):
- DOE/ET/28366-5; ON: DE83004514
- Resource Relation:
- Other Information: Mf only; illegibility does not permit PC reproduction
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
RESERVOIR ROCK
ELECTRIC CONDUCTIVITY
SEISMIC P WAVES
BASALT
POROSITY
RESERVOIR TEMPERATURE
VELOCITY
VOLCANIC ROCKS
ELECTRICAL PROPERTIES
IGNEOUS ROCKS
PHYSICAL PROPERTIES
ROCKS
SEISMIC WAVES
Geothermal Legacy
150303* - Geothermal Exploration & Exploration Technology- Exploratory Drilling & Well Logging
152002 - Geothermal Data & Theory- Properties of Minerals & Rocks