Showing 25 pages using this property.
|A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project +||The basics of this technology were developed by the oil and gas industry to discern petrologic characteristics of hydrocarbon reservoirs, but the techniques have never been applied to definition and characterization of permeable zones associated with geothermal resources. There is a substantial amount of existing geophysical and wellbore data for the area, and these data will be complemented with modern, state-of-the-art reflection seismic data. Three-component geophones will record full-fold compressional p-wave, converted-wave, and shear-wave data over the 2.5 square miles of proven geothermal resource.
The proposed 3D seismic survey involves the generation of ground vibration by "vibroseis" equipment along source points and the recording of reflected sound waves and patterns arising from the different underground geologic strata along receiver lines. The proposed source points are arranged into source lines that run northeast to southwest and are oriented perpendicular to the receiver lines, which run northwest to southeast within the boundary of the project area. The data will be processed first in a conventional way to identify anomalous zones, to which specialized attribute processing will be applied. The results of the processing will be made accessible in a GIS format to facilitate visualization of interrelationships among the data and to build conceptual geologic and/or geothermal reservoir models and define drilling targets.|
|A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project +||Mine waters will be accessed via an existing shaft, a closed loop installed, and heat pumps will then provide the necessary boost to heat and cool the building. The water in the mine is 78F (25C); nearly 20 years of continuous pumping at a nearby mine indicates that mine-water temperatures are stable and ample heat is available for long-term use. The details of the system are still being assessed; important decisions to be made include where the heat exchanger and heat pumps should be located in the system, and whether to convert all or only parts of the building heating system to geothermal capability. The natural-gas-fired steam system presently installed will be redundant to the geothermal system, so that direct comparisons can be made on comparative costs of the systems.|
|A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project +||Funds are requested to better characterize the geothermal resource. This information will be used to develop a new‐graduate level class on low‐temperature geothermal exploration at NM Tech and to improve management of the geothermal resource. This class will be offered as part of the hydrology programs distant learning curriculum within the Department of Earth and Environmental Sciences.
If flow rates are found to be sufficient, the proposed facility may also stimulate basic and applied research and development in biofuels and geomicrobiology. Plans include the development of a high‐resolution, three‐dimensional hydrothermal model of the La Jencia and Socorro Basins. The code will be used to optimize the geothermal production rates and ensure that the project does not impact nearby Socorro Spring discharge rates or water levels.|
|A new analytic-adaptive model for EGS assessment, development and management support Geothermal Project +||The model development work follows three main objectives in three phases in three years.
<br />- Phase I: Develop the GHE model and establish the NTCF coupling framework for the sub-models. The GHE model will be applicable to any EGS, conventional or emerging, including huff-puff techniques, CO2 injection, and two-phase flow.
<br />- Phase II: Develop the dynamic response functions to adapt and tune the model-elements in the GHE for short- and long-term fracture behavior, morphology change or degradation, and to produce a life-cycle model of the EGS.
<br />- Phase III: Apply and test the model and prove the project's main hypothesis in support of new developments in energy research, prove the capabilities of the model as an assessment/interpretive tool in EGS application examples, and demonstrate reservoir sustainability and optimization with model solutions for an EGS site under development by ORMAT.|
|Advanced Seismic data Analysis Program (The “Hot Pot Project”) Geothermal Project +||The proposed project involves the application of advanced seismic data analytical techniques to generate a 2.5-D structural image of the project area. Recent data analysis of seismic surveys performed in geothermal systems has utilized the current accepted technique of first-arrival velocity optimization followed by pre-stack depth migration (Honjas et al., 1997, Pullammanappallil et al., 2001, Unruh et al., 2001). However, this technique is constrained by accurate velocity information below depths of 3,000 feet and approximates deeper information by ‘stacking’ velocities along an assumed gradient. The Hot Pot project proposes to improve upon this method by using the innovative analytical techniques of combined Coherency-First Arrival data processing and Full Waveform Inversion velocity model derivation to construct a 2.5-D model of the geologic structure at depth. Higher resolution images can be produced with a 3-D seismic survey, but this requires a very dense grid of tightly constrained seismic lines which is very expensive to run. It is expected that results equivalent to a 3-D model can be obtained at a cost approaching that of a standard 2-D model with the proposed 2.5-D technique.|
|Advancing Reactive Tracer Methods for Measuring Thermal Evolution in CO2- and Water-Based Geothermal Reservoirs Geothermal Lab Call Project +||The project consists of four tasks, which each end with a decision as to whether the task has led to a successful development.
<br />- Development of the tools needed to plan and interpret reactive tracer tests
<br />- Development of suitable tracers to cover a range of reservoir temperature and residence time conditions
<br />- Testing the tools and tracers in a field setting to verify relevance to industry
<br />- Project management and reporting|
|Air-Cooled Condensers in Next-Generation Conversion Systems Geothermal Lab Call Project +||The project objective will be accomplished through a series of engineering studies that will be performed for the candidate plants with different resource scenarios. There are three resource scenarios;
<br />- Air-Cooled Binary (Completion by FY10 1st Quarter)
<br />- Air-Cooled Flash Steam (Completion by FY10 3rd Quarter)
<br />- Air-Cooled Condenser designs for Mixed Working Fluids (Completion by FY11 4th Quarter)
In each of the studies performed, results will be documented and recommendations made as to whether further research is warranted to validate the projected benefits.|
|Alum Innovative Exploration Project Geothermal Project +||The expected outcome of this project is an exploration and drilling case-study of the Alum geothermal resource which can be used to help find and develop geothermal resources in analogous geologic environments.|
|An Integrated Experimental and Numerical Study: Developing a Reaction Transport Model that Couples Chemical Reactions of Mineral Dissolution/Precipitation with Spatial and Temporal Flow Variations in CO2/Brine/Rock Systems Geothermal Project +||The chemical interactions studied are predominantly mineral dissolution/precipitation reactions that are likely heterogeneously distributed and time-dependent. Thus, standard chemical models that assume homogeneously mixed components, local equilibrium, and evenly distributed pore structures cannot be applied. Instead, this study will conduct physical experiments involving the actual fluids (brine, supercritical CO2) and solids (various likely reservoir rocks) under realistic pressure and temperature conditions. These experiments are then utilized in the manner described next to include mineral dissolution/precipitation processes and related perme-ability changes into TOUGH2 for conditions that are likely found when supercritical CO2 is used in EGS.|
|Analysis & Tools to Spur Increased Deployment of “ Waste Heat” Rejection/Recycling Hybrid GHP Systems in Hot, Arid or Semiarid Climates Like Texas Geothermal Project +||The expected outcomes are a set of tools that provide engineering guidance to enable lowest life-cycle-cost GHP infrastructure for the various building types, sizes and usages depending upon their existing HVAC systems (if applicable), local climate and building site characteristics. These include climate–, building– and site–specific: (1) modeling and analysis of “waste heat” that auxiliary SHR systems must reject/recycle; (2) modeling and analysis of the overall SHR–augmented GHP system performance and efficiency; (3) modeling and analysis of overall life–cycle costs, including installation and maintenance costs; and (4) development of web–based decision–support tools that provide guidance regarding which SHR–augmented GHP systems offer the best performance at the lowest life–cycle cost for a given application.|
|Analysis of Energy, Environmental and Life Cycle Cost Reduction Potential of Ground Source Heat Pump (GSHP) in Hot and Humid Climate Geothermal Project +||- Gather and analyze independent and statistically valid technical, cost, financial incentive data on installed GSHP/HGSHP applications in residential, commercial and schools in hot and humid climate regions, and develop a calibrated baseline and performance period model of new construction and retrofitted buildings in conjunction with the EnergyPlus simulation program
<br />- Develop a cost/benefit model and tool including life cycle cost (LCC) analysis of GSHP and HGSHP system based on data collected and correlate the data with identified parameters
<br />- Present a comprehensive report outline the findings and recommendations addressing the goal of the project by providing the easy-to-follow guidelines
By accomplishing the above-stated three objectives the project will not only fill the gap of uncertainty of benefits and trade-off of the applications of GSHP/HGSHP systems in hot and humid climate but more importantly provide a complete, easy-to-follow tool for the prospective end user of GSHP to analyze system cost and utility cost saving for their specific applications and to aid in their purchase and design decisions.|
|Analysis of Low-Temperature Utilization of Geothermal Resources Geothermal Project +||-Develop innovative methods of using low-temperature geothermal resources to increase the efficiency of other renewable energy processes and illustrate the impacts that geothermal energy can have on the national scale.
-Deliver a resource assessment for low-temperature geothermal energy utilization demonstrating that geothermal energy is truly a nationwide energy resource.|
|Application of 2D VSP Imaging Technology to the Targeting of Exploration and Production Wells in a Basin and Range Geothermal System Humboldt House-Rye Patch Geothermal Area Geothermal Project +||All Phase I tasks, including permitting in the Humboldt House Federal Unit, are expected to be complete within six months of Project start. Phase II is expected to be complete within eight months following completion of Phase I. Phase III tasks are expected to be complete within 10 months following the Phase III start, or 24 months following Project start.|
|Away from the Range Front: Intra-Basin Geothermal Exploration Geothermal Project +||Faults will be targeted with slim wells to discover a deep geothermal system in a prospect away from the range front in Gabbs Valley, Nevada. The exploration project will discover a resource expected to have temperatures from 150 to 260 oC (300 to 500 oF) and a capacity of about 30 MW.|
|BSU GHP District Heating and Cooling System (PHASE I) Geothermal Project +||- Demonstrate that: (1) a renewable and reliable (2) geothermal ground source heating and cooling system can (3) immediately begin to employ more than 2,300 Americans who will for the first time apply (4) commercially available American-made technology (5) to create a 10,000 ton GHP system that (6) dramatically increases the energy efficiency and (7) eliminates the CO2 and other greenhouse gases that result from the burning of 36,000 tons of coal.
<br />- Provide hot and chilled water to over 5 million square feet of conditioned space. Finally, the Project will save the University approximately $2.3 Million/year in operating costs ($1 million annually as a result of Phase I). Phase II (not part of this Solicitation) will follow as funding becomes available.|
|Base Technologies and Tools for Supercritical Reservoirs Geothermal Lab Call Project +||- Laboratory evaluation of subsystems and field deployment results from developed high-temperature tools.
<br />- Develop and test a Dewarless 240C PTC (Pressure/Temperature/Collar Counter) tool.
<br />- Design and fabricate a prototype Dear Flasked PTC tool that operates at 450C.
<br />- Develop Dewar Flasked Fluid Sampler that can operate at ~450C.|
|Baseline System Costs for 50.0 MW Enhanced Geothermal System -- A Function of: Working Fluid, Technology, and Location Geothermal Project +||- Develop a baseline cost model of a 50.0 MW EGS, including all aspects of the project, from finding the resource through to operation, for a particularly challenging scenario: the deep granitic rock of the Pioneer Valley in Western Massachusetts.
<br />- Develop an understanding of how that cost model changes (improves hopefully) with the change from H2O-EGS to CO2-EGS.
<br />- Develop an understanding of how that cost model changes / improves with respect to key technologies, specifically: conventional vs. spallation drilling and CO2-EGS hybrid power system gas generation and processing approaches.
<br />- Develop an understanding of how that cost model changes / improves with respect to “location, location, location”, specifically: temperature profile vs. depth; geology, geo chemistry (rock type, porosity, etc); and local electric rate (as it applies to the effective cost of CO2, and EGS ROI overall).|
|Beowawe Bottoming Binary Project Geothermal Project +||- Perform a study to determine the technical and economic feasibility of a power generation expansion at the existing Beowawe Geothermal Power Plant utilizing binary technology which derives its heat source from the existing low pressure, low-temperature (205°F) brine, which is currently injected into the geothermal reservoir.
<br />- Obtain the necessary permits related to the expansion, including water rights for a new fresh water well which will provide makeup water for the new cooling system.
<br />- Engineer, procure, construct, test, and commission a 1.5- megawatt electric (MWe) binary plant.
<br />- Operate and maintain the new binary plant, providing nonproprietary data to the National Geothermal Data System (NGDS) and the Department of Energy Geothermal Technologies Program (DOE GTP) for a minimum of two years.
The projects benefits and outcomes include:
<br />- Proving the technical and economic feasibility of utilizing the available unused heat to generate additional electric power from a binary power plant from the low-temperature brine at the
Beowawe Geothermal Power Plant.
<br />- Providing non-proprietary data to the NGDS and DOE for two years.
<br />- Increased economic benefits in terms of job creation, income generation, and increased tax and royalty payments.
<br />- Decreased greenhouse gas (GHG) emissions.|
|Black Warrior: Sub-soil Gas and Fluid Inclusion Exploration and Slim Well Drilling Geothermal Project +||- Discover a blind low to moderate temperature geothermal reservoir in western near Reno.
<br />- Create short and long term jobs near Reno associated with the project to explore, and operate the discovered resource.
<br />- If successful, the project will also create multiple long term professional employment opportunities in the chemical analytic laboratories that provide analyses.
<br />- Apply a combination of detailed sub-soil gas, hydrocarbon, and isotope data possible up flow in a geothermal prospect.
<br />- Calibrate the sub-soil chemistry with down hole fluid inclusion stratigraphy analyses to define a follow-up exploration drilling target.
<br />- Successful application of these exploration and drilling methods might allow replication at multiple sites along the geothermal trend in several known blind targets in the region.
<br />- Extend the DOE sub-soil 2 meter probe technology to gas sampling.|
|Blind Geothermal System Exploration in Active Volcanic Environments; Multi-phase Geophysical and Geochemical Surveys in Overt and Subtle Volcanic Systems, Hawaii and Maui Geothermal Project +||While some proposed geochemistry has yet to be completed at PGF, its’ completion there will serve to 1) derive geochemical benchmarks for how an active hydrothermal system ‘should’ look in the Hawaiian chain and 2) enhance the understanding of the geothermal system at Puna. When completed, the goals will produce an end-to-end toolkit of geophysically-derived 3-D structural and lithologic maps that guide advanced geochemical surveys and ultimately prioritize targets for drilling at Ulupalakua Ranch, Maui.|
|CNCC Craig Campus Geothermal Program: 82-well closed loop GHP well field to provide geothermal energy as a common utility for a new community college campus. Geothermal Project +||Geothermal energy provided by a ground source heat pump system will reduce consumption of electricity (~60% is from coal) and natural gas resources compared to traditional heating and cooling systems. This project will reduce CO2 emissions by 539 Tons per year compared with a traditional HVAC system. A 25-year Lifecycle Cost Comparison (LCC) demonstrates the economic viability of the GHP technology with traditional HVAC construction. The results of this analysis which takes into account initial capital cost estimates and energy models using a Trace 700 model shows that the GHP solution is the most economic solution for the new campus. This project will demonstrate and report on the actual implemented costs and energy usage.|
|Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide Geothermal Lab Call Project +||This project is divided into five tasks:
<br />- Task 1: Chemical analyses of bore core samples taken from reservoir rock formation.
<br />- Task 2: Carbonation study of minerals.
<br />- Task 3: Mechanical behaviors of carbonated minerals.
<br />- Task 4: Modeling of CO2- reservoir rock interactions.
<br />- Task 5: Preparation of report covering the four tasks previous task, which will be submitted to DOE.|
|Cedarville School District Retrofit of Heating and Cooling Systems with Geothermal Heat Pumps and Ground Source Water Loops Geothermal Project +||- An audit of the buildings along with existing utility distribution, cooling and heating systems will be performed to confirm and optimize design concepts for the new Geothermal Heat Pump systems, and determine which portions of the existing systems will not feasibly be usable. The details of design for the vertical well water loops will be confirmed. The operational costs of the existing systems and existing air quality will measured and documented in order to set benchmarks for comparing the performance of the new systems.
<br />- Design plans and specifications will be completed and approved. Bids for equipment and contract services will be solicited, vetted, and orders placed. Permits, which are expected to be routine, will be obtained.
<br />- Water loop construction will begin, as well as any preparation for installation work at the site that does not unduly interfere with school activities.
<br />- When the school activity schedule permits the removal of existing equipment will begin, followed by the beginning of installation of new equipment, and the redistribution of electrical services for the new equipment.
<br />- Commissioning the new systems and training will be completed as needed so as not to unduly interfere with school activities.
<br />- The performance of the new systems will be monitored for a period of three years after commissioning.
- The centralized energy management and control system will supply operational data, and other data regarding utility usage, maintenance and other costs will be gathered and made available to the National Geothermal Data System.|
|Characterizing Fractures in Geysers Geothermal Field by Micro-seismic Data, Using Soft Computing, Fractals, and Shear Wave Anisotropy Geothermal Project +||Several complementary processing approaches will be used to develop and test new techniques for data collection and analysis. They include micro-seismic data analysis both for compressional and shear waves using soft computing, anisotropic inversion and fractal concepts. This will allow for USC to analyze and interpret micro-seismic data and create velocity fields using tomography. Neuro-fuzzy approach will be used to create a hybrid micro-earthquakes (MEQ) event picking. This project will combine the USC team expertise in these areas with the operational expertise and experience of Calpine as well as the long history of pioneering work of LBNL on geophysical technology applications in geothermal fields.
This effort will complement and enhance the ongoing EGS experiment in the northwest Geysers, under DOE funded LBNL-Calpine project from FOA Number DE-PS36-08G098008. USC will utilize the data gathered in the Geyser to better understand and characterize the fracture system that provides fluid storage, transmissivity and an efficient boiling at the Geysers. This work is expected to complement the ongoing Calpine-LBNL EGS project. Furthermore, USC believes that many of the techniques developed and tested under this project will be applicable to many other geothermal fields in California and elsewhere in the country.|
|Characterizing Structural Controls of EGS-Candidate and Conventional Geothermal Reservoirs in the Great Basin: Developing Successful Exploration Strategies in Extended Terranes Geothermal Project +||Multiple publications addressing the structural controls of geothermal activity will result from this project, including a comprehensive structural catalogue detailing favorable settings. This work will augment the discovery of new conventional geothermal systems, as well as enhancement of known systems (EGS) by providing qualitative and quantitative data on the most favorable structural settings. Specifically, it will help to focus regional exploration programs, target productive well sites in individual geothermal fields, and select the best sites for EGS experiments.|