United States Dept. of Energy Office of Geothermal TechnologiesOverview
Publication Timeline
Most widely held works by
United States
Volcanoes of Indonesia
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3 editions published in 1998 in English and held by 258 libraries worldwide Contains extensive compilation of data and images for volcanoes of Indonesia, one of world's most active volcanic regions.
Geothermal resources in Latin America & the Caribbean
by Liz Battocletti
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Book
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1 edition published in 1999 in English and held by 134 libraries worldwide
Proceedings Geothermal Program Review XV : the role of research in the changing world of energy supply, March 24-26, 1997, San Francisco, California
by Geothermal Program Review
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Book
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1 edition published in 1997 in English and held by 86 libraries worldwide
Geothermal financing workbook
by Liz Battocletti
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Book
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1 edition published in 1998 in English and held by 68 libraries worldwide This report was prepared to help small firm search for financing for geothermal energy projects. There are various financial and economics formulas. Costs of some small overseas geothermal power projects are shown. There is much discussion of possible sources of financing, especially for overseas projects. (DJE-2005).
Feasibility study for the direct use of geothermal energy for onion dehydration in Vale/Ontario area, Oregon : final report
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Book
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1 edition published in 2006 in English and held by 7 libraries worldwide
Volcanoes of Mexico
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1 edition published in 2003 in English and held by 6 libraries worldwide Contains an extensive compilation data and images for the volcanoes of Mexico. A map-driven interface allows selection of each of the 38 Holocene and 29 Pleistocene volcanoes of Mexico.
Federal Geothermal Research Program update, fiscal year 1995
by Geothermal Research Program (U.S.)
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Book
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1 edition published in 1996 in English and held by 6 libraries worldwide
Volcanoes of Central America
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1 edition published in 2006 in English and held by 3 libraries worldwide Contains extensive compilation of data and images for volcanoes of Central America.
Outline specifications for direct-use wells and equipment
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Book
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1 edition published in 1998 in English and held by 3 libraries worldwide
Tracing Geothermal Fluids
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Book
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2 editions published in 2004 in English and held by 2 libraries worldwide Chemical compounds have been designed under this contract that can be used to trace water that has been injected into vapor-dominated and two-phase geothermal fields. Increased knowledge of the injection flow is provided by the tracers, and this augments the power that can be produced. Details on the stability and use of these tracers are included in this report.
Exploration of the Upper Hot Creek Ranch Geothermal Resource, Nye County, Nevada
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Book
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2 editions published between 2005 and 2006 in English and held by 2 libraries worldwide The Upper Hot Creek Ranch (UHCR) geothermal system had seen no significant exploration activity prior to initiation of this GRED III project. Geochemical geothermometers calculated from previously available but questionable quality analyses of the UHCR hot spring waters indicated possible subsurface temperatures of +320 oF. A complex Quaternary and Holocene faulting pattern associated with a six mile step over of the Hot Creek Range near the UHCR also indicated that this area was worthy of some exploration activity.Permitting activities began in Dec. 2004 for the temperature-gradient holes but took much longer than expected with all drilling permits finally being received in early August 2005. The drilling and geochemical sampling occurred in August 2005.Ten temperature gradient holes up to 500' deep were initially planned but higher than anticipated drilling and permitting costs within a fixed budget reduced the number of holes to five. Four of the five holes drilled to depths of 300 to 400' encountered temperatures close to the expected regional thermal background conditions. These four holes failed to find any evidence of a large thermal anomaly surrounding the UHCR hot springs. The fifth hole, located within a narrow part of Hot Creek Canyon, encountered a maximum temperature of 81 oF at a depth of 105' but had cooler temperatures at greater depth. Temperature data from this hole can not be extrapolated to greater depths. Any thermal anomaly associated with the UHCR geothermal system is apparently confined to the immediate vicinity of Hot Creek Canyon where challenges such as topography, a wilderness study area, and wetlands issues will make further exploration time consuming and costly.Ten water samples were collected for chemical analysis and interpretation. Analyses of three samples of the UHCR thermal give predicted subsurface temperatures ranging from 317 to 334 oF from the Na-K-Ca, silica (quartz), and Na-Li geothermometers. The fact that all three thermometers closely agree gives the predictions added credibility.Unfortunately, the final result of this exploration is that a moderate temperature geothermal resource has been clearly identified but it appears to be restricted to a relatively small area that would be difficult to develop.
Deep Blue No.2 Geothermal Test Well GRED II Phase II - Drilling Report
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Book
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1 edition published in 2004 in English and held by 2 libraries worldwide Geothermal slim well driling.
Geothermal Money Book [Geothermal Outreach and Project Financing
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Book
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1 edition published in 2004 in English and held by 2 libraries worldwide Small business lending is big business and growing. Loans under $1 million totaled $460 billion in June 2001, up $23 billion from 2000. The number of loans under $100,000 continued to grow at a rapid rate, growing by 10.1%. The dollar value of loans under $100,000 increased 4.4%; those of $100,000-$250,000 by 4.1%; and those between $250,000 and $1 million by 6.4%. But getting a loan can be difficult if a business owner does not know how to find small business-friendly lenders, how to best approach them, and the specific criteria they use to evaluate a loan application. This is where the Geothermal Money Book comes in. Once a business and financing plan and financial proposal are written, the Geothermal Money Book takes the next step, helping small geothermal businesses locate and obtain financing. The Geothermal Money Book will: Explain the specific criteria potential financing sources use to evaluate a proposal for debt financing; Describe the Small Business Administration's (SBA) programs to promote lending to small businesses; List specific small-business friendly lenders for small geothermal businesses, including those which participate in SBA programs; Identify federal and state incentives which are relevant to direct use and small-scale (< 1 megawatt) power generation geothermal projects; and Provide an extensive state directory of financing sources and state financial incentives for the 19 states involved in the GeoPowering the West (GPW). GPW is a U.S. Department of Energy-sponsored activity to dramatically increase the use of geothermal energy in the western United States by promoting environmentally compatible heat and power, along with industrial growth and economic development. The Geothermal Money Book will not: Substitute for financial advice; Overcome the high exploration, development, and financing costs associated with smaller geothermal projects; Remedy the lack of financing for the exploration stage of a geothermal project; or Solve financing problems that are not related to the economic soundness of your project or are caused by things outside of your control.
Time-dependent seismic tomography of the Coso geothermal area, 1996-2004
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1 edition published in 2006 in English and held by 2 libraries worldwide Measurements of temporal changes in Earthstructure are commonly determined using local earthquake tomography computer programs that invert multiple seismic-wave arrival time datasets separately and assume that any differencesin the structural results arise from real temporal variations. This assumption is dangerous becausethe results of repeated tomography experiments would differ even if the structure did not change, simply because of variation in the seismic ray distribution caused by the natural variation inearthquake locations. Even if the source locations did not change (if only explosion data were used, for example), derived structures would inevitably differ because of observational errors. A better approach is to invert multiple data sets simultaneously, which makes it possible to determine what changes are truly required by the data. This problem is similar to that of seeking models consistent with initial assumptions, and techniques similar to the "damped least squares" method can solve it. We have developed a computer program, dtomo, that inverts multiple epochs of arrival-time measurements to determine hypocentral parameters and structural changes between epochs. We shall apply this program to data from the seismically active Coso geothermal area, California, in the near future.The permanent network operated there by the US Navy, supplemented by temporary stations, has provided excellent earthquake arrival-time data covering a span of more than a decade. Furthermore, structural change is expected in the area as a result of geothermal exploitation of the resource. We have studied the period 1996 through 2006. Our results to date using the traditional method show, for a 2-km horizontal grid spacing, an irregular strengthening with time of a negative VP/VS anomaly in the upper ~2 km of the reservoir. This progressive reduction in VP/VS results predominately from an increase of VS with respect to VP. Such a change is expected to result from effects of geothermal operations such as decreasing fluid pressure and the drying of argillaceous minerals such as illite.
The National Geothermal Collaborative, EERE-Geothermal Program, Final Report
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Book
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1 edition published in 2006 in English and held by 2 libraries worldwide Summary of the work conducted by the National Geothermal Collaborative (a consensus organization) to identify impediments to geothermal development and catalyze events and dialogues among stakeholders to over those impediments.
Geothermal Information Dissemination and Outreach
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Book
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1 edition published in 2005 in English and held by 2 libraries worldwide Project Purpose To enhance technological and topical information transfer in support of industry and government efforts to increase geothermal energy use in the United States (power production, direct use, and geothermal groundsource heat pumps). Project WorkGRC 2003 Annual Meeting. The GRC convened the meeting on Oct. 12-15, 2003, at Morelia's Centro de Convenciones y ExpoCentro in Mexico under the theme, International Collaboration for Geothermal Energy in the Americas. The event was also sponsored by the Comision Federal de Electricidad. ~600 participants from more than 20 countries attended the event. The GRC convened a Development of Geothermal Projects Workshop and Geothermal Exploration Techniques Workshop. GRC Field Trips included Los Azufres and Paricutin Volcano on Oct. 11. The Geothermal Energy Association (Washington, DC) staged its Geothermal Energy Trade Show. The Annual Meeting Opening Session was convened on Oct. 13, and included the governor of Michoacan, the Mexico Assistant Secretary of Energy, CFE Geothermal Division Director, DOE Geothermal Program Manager, and private sector representatives. The 2003 Annual Meeting attracted 160 papers for oral and poster presentations. GRC 2004. Under the theme, Geothermal - The Reliable Renewable, the GRC 2004 Annual Meeting convened on Aug. 29-Sept. 1, 2004, at the Hyatt Grand Champions Resort at Indian Wells, CA. Estimated total attendance (including Trade Show personnel, guests and accompanying persons) was ~700. The event included a workshop, Geothermal Production Well Pump Installation, Operation and Maintenance. Field trips went to Coso/Mammoth and Imperial Valley/Salton Sea geothermal fields. The event Opening Session featured speakers from the U.S. Department of Energy, U.S. Department of the Interior, and the private sector. The Geothermal Energy Association staged its Geothermal Energy Trade Show. The Geothermal Education Office staged its Geothermal Energy Workshop. Several local radio and TV station interviews were conducted during the event. Technical Program included 136 technical papers. All were published in Volume 28 of the GRC Transactions. Volume 28, GRC Transactions Pblished as a high-quality, durable casebound volume, Volume 28 of the Transactions published 119 out of 136 technical papers (692 pp) presented at the GRC 2004 Annual Meeting. The papers were submitted by geothermal experts and professionals from around the world. The papers were reviewed over a 2-day period by 25 volunteer (in-kind) geothermal experts from the private sector and DOE National Laboratories. GRC staff received and cataloged the papers, and maintained interaction with authors for revisions and corrections. DOE Geothermal Technologies Newsletter The Office of Geothermal Technologies quarterly newsletter, Geothermal Technologies, is produced at the National Renewable Energy Laboratory (NREL). This 2-color, 4- to 16-page newsletter summarizes federal geothermal research and development projects and other DOE geothermal news. The GRC receives newsletter disk copy and color-key proof from NREL for each newsletter, then follows through with print production and distribution. Circulation is 1,000 per issue (plus 300 copies of the newsletter shipped to NREL for internal and public distribution). During the project period, the GRC printed, stitched and bound the Geothermal Technologies newsletter into the Sept/Oct 2003, Jan/Feb 2004, and May/June 2004 editions of the GRC Bulletin. Multiple copies (300) of the newsletter sans magazine were provided to NREL for internal DOE distribution. GRC Geothermal Research LibraryThe GRC has built the largest and most comprehensive library in the world devoted to geothermal energy. The GRC Geothermal Library provides rapid accessibility to the majority of technical literature crafted over the past 30 years, and preserves hard copy and on-line databases for future use by geothermal researchers and developers. A bibliography for over half of the physical library's citations is available through keyword search on the GRC web site (www.geothermal.org). The GRC maintains one employee to catalog donated libraries, thus increasing the number of available citations. Document collection is ongoing, with regular database additions. Continuing development of the GRC On-Line Library includes: 1) data entry and development of keywords for additional citations; 2) filing library publications; 3) maintaining and enhancing the website; 4) purchase of publications and geothermal articles; and 5) maintenance of computer and other equipment. Page hits were 243,000 per month in November 2003.
Geothermal Energy Information Dissemination and Outreach
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Book
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1 edition published in 2005 in English and held by 2 libraries worldwide The objective of this project is to continue on-going work by the Geo-Heat Center to develop and disseminate information; provide educational materials; develop short courses and workshops; maintain a comprehensive geothermal resource database; respond to inquiries from the public, industry and government; provide engineering, economic and environmental information and analysis on geothermal technology to potential users and developers; and provide information on market opportunities for geothermal development. These efforts are directed towards increasing the utilization of geothermal energy in the US and developing countries, by means of electric power generation and direct-use.
RUBBER BEARINGS FOR DOWN-HOLE PUMPS
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Book
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1 edition published in 2005 in English and held by 2 libraries worldwide Synopsis of project activity: 1998--Awarded cost share grant from DOE. 1st Qtr 1999--Developed fail safe lubricating system. 2nd Qtr 1999--Performed first large scale test with nitrile based bearings. It failed due to material swelling. Failure was blamed on improper tolerance. 3rd Qtr 1999--Material tests were performed with autoclaves and exposure tests to Casa Diablo fluids. Testing of Viton materials began. Alternate bearing designs were developed to limit risk of improper tolerances. 4th Qtr 1999--Site testing indicated a chemical attack on the bearing material caused the test failure and not improper bearing tolerance. 1st Qtr 2000--The assistance of Brookhaven National Laboratory was obtained in evaluating the chemical attack. The National Laboratory also began more elaborate laboratory testing on bearing materials. 2nd Qtr 2000--Testing indicated Viton was an inappropriate material due to degradation in Casa Diablo fluid. Testing of EPDM began. 3rd Qtr 2001--EPDM bearings were installed for another large scale test. Bearings failed again due to swelling. Further testing indicated that larger then expected oil concentrations existed in lubricating water geothermal fluid causing bearing failure. 2002-2003--Searched for and tested several materials that would survive in hot salt and oil solutions. Kalrez{reg_sign}, Viton{reg_sign}ETP 500 and Viton{reg_sign}GF were identified as possible candidates. 2003-2005--Kalrez{reg_sign}has shown superior resistance to downhole conditions at Casa Diablo from among the various materials tested. Viton ETP-500 indicated a life expectancy of 13 years and because it is significantly less expensive then Kalrez{reg_sign}, it was selected as the bearing material for future testing. Unfortunately during the laboratory testing period Dupont Chemical chose to stop manufacturing this specific formulation and replaced it with Viton ETP 600S. The material is available with six different fillers; three based on zinc oxide and three based on silicon oxide. Samples of all six materials have been obtained and are being tested at the National Laboratory in Brookhaven, New York. This new material's properties as a bearing material and its ability to adhere to a bearings shell must be reviewed, but cost information deemed the material to be too expensive to be economical.
Blue Mountain, Humboldt County, Nevada, U.S.A
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Book
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1 edition published in 2005 in English and held by 2 libraries worldwide The report documents the drilling of well Deep Blue No.2, the second deep geothermal test holeat the Blue Mountain Geothermal Area, Humboldt County, Nevada. The well was drilled byNoramex Corp, a Nevada company, with funding support from the US Department of Energy,under the DOE's GRED II Program.Deep Blue No.2 was drilled as a 'step-out' hole from Deep Blue No.1, to further evaluate thecommercial potential of the geothermal resource. Deep Blue No.2 was designed as a vertical,slim observation test hole to a nominal target depth of 1000 meters (nominal 3400 feet). The welltests an area of projected high temperatures at depth, from temperature gradients measured in agroup of shallow drill holes located approximately one kilometer to the northeast of observationhole Deep Blue No.1. The well is not intended for, or designed as, a commercial well or aproduction well.Deep Blue No.2 was spudded on March 25, 2004 and completed to a total depth of 1127.76m(3700 ft) on April 28, 2004. The well was drilled using conventional rotary drilling techniques toa depth of 201.17 m (660 ft), and continuously cored from 201.17m (660 ft) to 1127.76m (3700ft). A brief rig-on flow-test was conducted at completion to determine basic reservoir parametersand obtain fluid samples. A permeable fracture zone with measured temperatures of 150 to167°C (302 to 333°F) occurs between 500 to 750m (1640 to 2461ft). The well was left un-linedin anticipation of the Phase III - Flow and Injection Testing.A further Kuster temperature survey was attempted after the well had been shut in for almost 3weeks. The well appears to have bridged off at 439m (1440ft) as the Kuster tool was unable todescend past this point. Several attempts to dislodge the obstruction using tube jars wereunsuccessful.Deep Blue No.2 encountered variably fractured and veined, fine-grained rocks of the SingasFormation, and intruded by minor strongly altered fine-grained felsic dikes, and less altered finetomedium-grained felsic to intermediate dikes.Widespread open fractures and extensive of quartz veining in many intervals of the core indicatea high degree of fracturing and flow of silica-bearing fluids, almost certainly hotter than 200°C(392°F), at some time, but these fractures are now partially sealed. Intervals of soft shalymudstone, common clay gouge, and rocks with generally low permeability (few veins andfractures) may also form a seal or 'cap' above the main high temperature reservoir at BlueMountain.The encouraging results from Deep Blue No.2 support further drilling at Blue Mountain. Highertemperature fluids can be expected where fractures providing channels for the circulation of hotwater from depth have not been sealed extensively by silica deposition. more
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Caribbean Area Central America Conference proceedings Databases Food processing plants Geothermal engineering Geothermal engineering--Finance Geothermal engineering--Research Geothermal power plants Geothermal power plants--Research Geothermal Research Program (U.S.) Geothermal resources Geothermal resources--Finance Geothermal resources--Research Ground source heat pump systems Handbooks, manuals, etc. Indonesia Latin America Maps Mexico Oregon Periodicals Small business--Finance Technology transfer United States Utah Volcanoes Wells--Design and construction
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Alternative Names
United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy. Office of Geothermal Technologies
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