Inventory of geothermal resources in Nebraska. Final report (original) (raw)
Related papers
Assessment of geothermal resources of Caliente, Nevada
1980
This book was prepared 2% an account of work sponsored by an agency of the United States Government. Ncither the United Slates Government nor any agency thereof, nor any o f their employees. makes any warranty, express or implied, or assumes any legal liability or respomibility for the acmracy, cur.ipleteness. or usefulnejr, of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial prodx:, prucess, or service by trade name. trademark, manufacturer, or othzrwisc, does not necessarily constitute or imp!y its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expresscd herein d o not necessarily state or reflect those of the United States Government or any agency thereof." This report has been reproduced directly irom the best available copy.
1980
This book was prepared as an 8ccount of work sponsorea by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, OT o s s v~ any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product or process disclosed, or represents that its use would not infringe privately owned rights. References herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or othenkh?, does not necessarily constitute or imply its endorsement, recommendation. or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.
Geothermal resource assessment for North Dakota. Final Report
1984
Price: Printed Copy A M Microfiche A01 Codes are used for pricing all publications. The code is determined by the number of pages in the publication. Information pertaining to the pricing codes can be found in the current issues of the following publications, which are generally available in most libraries: Energy Research Abstracts (ERA): Government Reports Announcements and Index (GRA and I); Scientific and Technical
1982
DISCLAIMER "This report was prepared as an account of work sponsored by an agency of the United States Government Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government.or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof." This report has been reproduced directly from the best available copy.
2012
The potential to utilize widespread low-grade geothermal resources of the Northeastern U.S. for thermal direct use and combined heat and power applications can be realized using technologies embodied in Enhanced Geothermal Systems (EGS). In lower grade regions, accurate knowledge of small variations in temperature gradient will be crucial to the economic viability of EGS development. In order to facilitate EGS project placement and design, this study draws a more complete picture of geothermal resources in the Northeastern United States-with a particular focus on New York and Pennsylvania-by incorporating thousands of new temperature-depth data collected as a result of continuing drilling for unconventional natural gas in the region. Using these new data, a series of maps covering the Appalachian Basin of New York and Pennsylvania were produced that show variations in subsurface thermal gradient and surface heat flow. The increased spatial accuracy and resolution compared to earlier geothermal maps of the Northeast U.S. illuminate better spatial variations in the resource quality, and have a much smaller degree of uncertainty in both extent and magnitude. The maps indicate that the temperatures required for direct-use applications are available at economically viable drilling depths over a majority of the region. Smaller-hot spot‖ areas of higher than average heat flow are found in the Pennsylvania counties of Indiana, McKean, Lawrence, and Warren, as well as Cayuga County in New York. These anomalies represent the most ideal candidates for further exploration and characterization of their EGS potential.
Preliminary Evaluation of Geothermal Potential at the Cheyenee River Sioux Reservation, South Dakota
1999
A geochemical investigation of well waters from the Cheyenne River Sioux Reservation in South Dakota revealed considerable diversity in the chemistry of the fluids and indicated that waters from the Dakota Formation were the best candidates for direct-use geothermal applications. Geothermometry calculations for all wells suggest that formation temperatures are < 90"C. Potential scaling problems from utilization of the waters would most likely be restricted to carbonate scale and could be offset by maintaining C02 gas in solution. ,' near-shore facies sandstones interbedded with shale, and Ordovician marine dolomites and dolomitic limestones. Waters from the Lantry oil field are derived from depths of =1500 meters. Water temperatures ranged between 36 and 52"C. Samples, FBTH #2 and FBTH #3, collected from a discharge pipe and a wellhead, contained minor traces of oil. Water from Lantry 1 stock tank flows continually from a 4" diameter pipe. The water is iron-rich (Table 1) and forms a bright red precipitate of what is assumed to be Fe(OH)3 on the bottom of the tank. The two thermal artesian wells are free flowing. The wellheads are wetted constantly by the flow and show obvious signs of corrosion. Both wells are leaking small amounts of water from cracks in the casing near the ground surface. Evaporation of water from cracks in the line at the Reds Scaffold Well produces a precipitate of what tastes, and appears to be, NaC1. Methods Samples were collected according to procedures outlined in Tmjillo et al. (1987) and were analyzed at Los Alarnos National Laboratory (Table 1). Water samples were taken as close as possible to the wellhead. Well flow rates were estimated using a stop watch and a container of known volume. Water flow at the Cherry Creek artesian well was restricted by a valve manifold and so flow rate was estimated from observation of apparent flow combined with anecdotal reports. Measurements for alkalinity, conductivity, Eh, and pH were taken in the field. Special samples were collected for monomeric Al analysis according to procedures outlined in Barnes (1975). Geochemical modeling was performed using the Geochemist's Workbench software package (Bethke, 1996) and version V2-EQ8 of the GEMBOCHS thermodynamic data base (Johnson and Lundeen, 1997).
Assessment of the geothermal resources of Kansas. Final report
1982
The following students made significant contributions to the aeromagnetic project. installation and testing. Robert Robertson's competence was a key influence in all phases of the project including data aquisition, reduction and interpretation. including the FFT filtering program. tions to the equipment. liminary partial maps into a final composite data set. A1 Martin played a key role in the second half of the project in the areas of data acquisition and reduction. ties in the area of data reduction and interpretation. Roubik Avanessians assisted in the equipment acquisition, Robert Wentland developed several excellent computer programs Mike Wolf made some important modifica-King Ng did an outstanding job of merging the pre-Rita Sooby efficiently carried out large responsibili-We are in great debt to Dennis Sooby, University pilot for the chancellor's plane, who devoted a great deal of his time to expert piloting of our aircraft during his off hours. Stewart Giesick, a veteran Beech D-18 pilot, did a commendable job of flying western Kansas.