| Preliminary Results from Two Spectral-Geobotanical Surveys over Geothermal Areas: Cove Fort-Sulphurdale, Utah and Dixie Valley, Nevada |
Nash, Gregory D. |
Exploration; Ecology; Biogeological surveys |
Exploration; Remote Sensing; Geobotany; Soil-geochemistry; Hyperspectral; Vegetal-spectral; Biogeochemistry; Vegetation spectroscopy |
Geothermal Resources Council Transactions |
1997 |
English |
| Sulfate-Water Isotope Geothermometry and Lead Isotope Data for the Regional Geothermal System in the Twin Falls Area, South-Central Idaho |
Mariner, R. H.; Young, H. W.; Bullen, T. D.; Janik, C. J. |
Exploration; Geothermometers; Geochemical surveys; Isotopes; |
General; Exploration; Low temperature; Isotopes; Geothermometers; Lead; Rhyolites; Humboldt formation; Lead isotopes; Limestone; Idavada Volcanoes |
Geothermal Resources Council Transactions |
1997 |
English |
| Zealan Microgravity Changes During Production from Ohaaki Geothermal Field, New Zealand |
Hunt, Trevor |
Geophysical surveys; Exploration; Gravity surveys; Hydrogeol |
Reservoir Engineering; Reservoir performance; Water saturation; Fluid flow; Mass transfer; Microgravity; Precision gravity |
Geothermal Resources Council Transactions |
1997 |
English |
| In-Situ Stress and Fracture Permeability in a Fault-Hosted Geothermal Reservoir at Dixie Valley, Nevada |
Hickman, Stephen; Barton, Colleen; Zoback, Mark; Morin, Roger; Sass, John; Benoit, Richard |
Exploration; Stress fields; Hydraulic fracturing; Fractures; |
Drilling; General; Exploration; Reservoir Engineering; Spinner Survey; Temperature Logs; Hydraulic Fracturing; Fault Zone; Fractures; Hydraulic Models; Permeability; Earthquakes; Televiewer (Borehole); Reservoir Models; Hydrothermal; Liquid Dominated; In- |
Geothermal Resources Council Transactions |
1997 |
English |
| What lies Beneath the Cerro Prieto Geothermal Field? |
Elders, Wilfred A.; Williams, Alan E.; Biehler, Shawn |
Exploration; Tectonics; Geophysical surveys; Reservoir model |
Exploration; Reservoir Models; Geophysical Surveys; Geological Surveys; Conceptual Models; Granite; Magma Chamber; Tectonics; High Temperature; Fission Track; Heat Source; Plate Tectonics; Gravity Surveys; Permeability; Basement; Ophiolite |
Geothermal Resources Council Transactions |
1997 |
English |
| Thermal Investigation in S. Pedro Do Sul Low Enthalpy Geothermal Field (Portugal) |
Correia, Antonio; Ramalho, Elsa Cristina; Lourenco, Maria Carla; Cruz, Jose Francisco |
Thermal springs; Heat flow; Exploration |
Exploration; Reservoir Engineering; Heat Flow; Uranium Thorium; Temperature Profile; Reservoir Limits; Reservoir Temperature |
Geothermal Resources Council Transactions |
1997 |
English |
| Preliminary Investigation of Scale Formation and Fluid Chemistry at the Dixie Valley Geothermal Field, Nevada |
Bruton, Carol J.; Counce, Dale; Bergfeld, Deborah; Goff, Fraser; Johnson, Stuart D.; Moore, Joseph N.; Nimz, Gregory |
Scaling; Brine chemistry; Injection; Isotopes |
Production; Reservoir Engineering; Brine Technology; Reservoir Agencies; Chemical Composition; Chemical Equilibrium; Scale; Scaling; Silica; Reinjection; Brines; Equilibrium; Meteoric Water; pH; Scale; Amorphous Silica; Chemical Analysis; Isotopes; LLNL; |
Geothermal Resources Council Transactions |
1997 |
English |
| Dry Steam Feed Zones and Silica Scaling as Major Controls of Total Flow Enthalpy at Cerro Prieto, Mexico |
Beall, Joseph J.; Ledesma, Andres Pelayo; de Dios Ocampo, Juan |
Scaling; Thermodynamics |
Reservoir Engineering; Reservoir Geochemistry; Reservoir Geology; Mexico, BC; Cerro Prieto; Excess enthalpies; Steam fraction; Vapor cap; Single phase; Liquid dominated; Chloride - Enthalpy diagrams |
Geothermal Resources Council Transactions |
1997 |
English |
| Advanced Biochemical Processes for Geothermal Brines: Current Developments |
Premuzic, Eugene T.; Lin, Mow S.; Bohenek, Michael; Bajsarowicz, Voytek; McCloud, Mary |
Waste management; Direct use; Mineral extraction; Brine chem |
Brine Technology; Environmental; Power Generation; Gold; Silica; Silver; Steam Composition; Sulfides; Waste Water; Biological; Bioremediation; Arsenic; Hydrogen Sulfide; Mercury; Silver (Environmental - Pollution); Efficiency; Biochemical Technology; New |
Geothermal Resources Council Transactions |
1997 |
English |
| Vegetation Ecological Restoration During Geothermic Exploratory Perforation: A Case Study in Mexico |
Ortega-Rubio, Alfredo; Salinas, Federico; Naranjo, Alejandra; Arguelles, Cerafina; Leon, Jose Luis; Nieto, Alejandra; Aguilar, Ricardo; Romero, Heidi |
Environmental aspects; Laws and regulations; Ecology |
Mexico; Baja California Sur; Tres Virgenes; Reforestasion; Environmental; Regulatory; Remedation; Biological |
Geothermal Resources Council Transactions |
1997 |
English |
| Monitoring of Arsenic, Boron and Mercury by Lichen and Soil Analysis in the Mt. Amiata Geothermal Area (Central Italy) |
Loppi, Stefano |
Environmental aspects; Ecology; Air quality; Arsenic; Boron; |
Environmental; Impact; Pollution; Italy; Mt. Amiata; Biological; Atmosphere; Chemical; Hazard; Air Pollution; Arsenic; Boron; Mercury; Lichens; Biomonitoring; Bioaccumulation |
Geothermal Resources Council Transactions |
1997 |
English |
| Use of Stress Cycling to Remove Downhole Scale from Geothermal Wells Using Coiled Tubing |
Portman, Lance |
Scaling; Well servicing; Equipment design |
Production; Scaling; Production Rate |
Geothermal Resources Council Transactions |
1997 |
English |
| Identification of Casing String Failure Modes Using Caliper Data |
Wagg, Brian; Slack, Maurice; Kaiser, Trent; DeGeer, Duane |
Well casing; Software |
Wellbore Completions; Failure Analysis; Identification; Canada; Alberta; Casing; Collapse; Buckle; Shear; Caliper; CTA; Failure; Subsidence |
Geothermal Resources Council Transactions |
1997 |
English |
| Well Cost Estimates in Various Geothermal Regions |
Pierce, K. G.; Bomber, T. M.; Livesay, B. J. |
Drilling; Economics |
Drilling; Economics; Well Costs; Drilling Costs; Cost Estimation |
Geothermal Resources Council Transactions |
1997 |
English |
| Feasibility of High Temperature Penetrators in Improving Geothermal Drilling Technology |
Litvinenko, V. S.; Kudryashov, B. B.; Solovjev, G. N. |
Equipment design; High temperature reservoirs; Drilling |
Thermal conductivity; Temperature; Heat resistant materials; Generator of heat; Drilling by Melting; Axial load; Insulation; St-Petersburg Mining Institute |
Geothermal Resources Council Transactions |
1997 |
English |
| Automatic Detection and Diagnosis of Problems in Drilling Geothermal Wells |
Harmse, J. E.; Wallace, R. D.; Glowka, D. A.; Mansure, A. J. |
Drilling; Operations management; Software; Lost circulation |
Drilling; Operations; Research Agencies; Lost Circulation Zone; Sandia; Mud Logging; Expert System; Circulation Instrumentation; Drilling Diagnostics |
Geothermal Resources Council Transactions |
1997 |
English |
| Air-Mud Drilling Separator Modification |
Fisher, Daniel; Jung, Douglas |
Drilling; Equipment design; Drilling separators |
Drilling; Environmental; Reservoir; Production; Indonesia; Wayang Windu; Drilling Mufflers; Drilling Separators; Air/mud Separator; Safety; Flow Testing; Noise Mitigation |
Geothermal Resources Council Transactions |
1997 |
English |
| Newberry Exploratory Slimhole |
Finger, John T.; Jacobson, Ronald D.; Spielman, Paul B. |
Drilling; Exploration; Slimholes; Temperature gradients; Los |
USA; Oregon; Deschutes; Newberry; Drilling; Exploration; Wireline Coring; Lost Circulation; Exploration Well; Logging Tool; Slimhole Drilling; Surface Instrumentation |
Geothermal Resources Council Transactions |
1997 |
English |
| New Attempts on Increasing Economic Gains in the Development of Geothermal Resources in Beijing, China |
Keyan Zheng |
Direct use; Economics; Exploration; Reservoir management |
Direct Use; China; Beijing; Xiaotangshan; General; Economics; Applications; Swimming; Health Care; Resorts; Recreation |
Geothermal Resources Council Transactions |
1997 |
English |
| Case Studies on Developing Local Industry by Using Hot Spring Water and Geothermal Energy |
Sasaki, Akira; Umetsu, Yoshio; Narita, Eiichi |
Direct use; Industrial applications |
Japan; Iwate; Direct Use; Applications; Industrial; General; Case Histories; Dye; Wood |
Geothermal Resources Council Transactions |
1997 |
English |