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1978 Houston-Galveston and Texas Gulf Coast vertical-control surveys

Description: Comparisons between leveling surveys of different epochs are used to determine vertical displacement of permanent bench marks. Displacement of bench marks usually represents the movement of the surrounding area. In this report, the 1978 Houston-Galveston and Texas Gulf Coast releveling surveys are compared to the 1963, 1973, and 1976 releveling results. The changes in elevations of bench marks common to two or more epochs are tabulated and plotted in Appendix A. From these differences, contour maps were prepared for the 1963 to 1978 and 1973 to 1978 epochs in the 2/sup 0/ x 2/sup 0/ area of maximum subsidence. Annual subsidence rates computed for the 1973 to 1978 period are about 25% less in the maximum subsidence area than the rates computed for the 1963 to 1973 period.
Date: November 1, 1980
Creator: Balazs, E.I.
Partner: UNT Libraries Government Documents Department

Future credible precipitation occurrences in Los Alamos, New Mexico

Description: I have studied many factors thought to have influenced past climatic change. Because they might recur, they are possible suspects for future climatic alterations. Most of these factors are totally unpredictable; therefore, they cast a shadow on the validity of derived climatic predictions. Changes in atmospheric conditions and in continental surfaces, variations in solar radiation, and in the earth's orbit around the sun are among the influential mechanisms investigated. Even when models are set up that include the above parameters, their reliability will depend on unpredictable variables totally alien to the model (like volcanic eruptions). Based on climatic records, however, maximum precipitation amounts have been calculated for different probability levels. These seem to correspond well to past precipitation occurrences, derived from tree ring indices. The link between tree ring indices and local climate has been established through regression analysis.
Date: September 1, 1980
Creator: Abeele, W.V.
Partner: UNT Libraries Government Documents Department

Tectonics of west central New Mexico and adjacent Arizona: a remote sensing and field study in arid and semi-arid areas

Description: Large-scale fault zones in west-central New Mexico and eastern Arizona were mapped using conventional fieldwork aided by Landsat and Seasat images and high altitude air photos. These faults, which are of post-early Miocene age, trend NE-SW and N-S and extend over 200 km. The fault zones bound very large horst and graben blocks which, although located on the physiographic Colorado Plateau, are characteristic of Basin and Range deformation. Their intersection has been the locus of extensive Cenozoic volcanism. The procedure developed in this project permitted investigation of an area of about 1.8 x 10/sup 5/ km/sup 2/ of arid and semi-arid land whose structures previously were poorly defined.
Date: January 1, 1981
Creator: Baldridge, W.S.; Bartov, Y. & Kron, A.
Partner: UNT Libraries Government Documents Department

Investigation and evaluation of geopressured-geothermal wells. Notes on Gruy Federal's Well-of-Opportunity program

Description: Obtaining test data from geopressured aquifers along the Texas and Louisiana Gulf Coast by arranging to assume operation of wells already drilled and found nonproductive of conventional oil or gas accumulations before such wells were abandoned by the operators is described. The geopressured aquifers were tested after performing whatever additional operations were required. The monitoring and screening of all wells which might qualify is described. The major activities and important milestones are summarized. (MHR)
Date: February 1, 1979
Partner: UNT Libraries Government Documents Department

Investigation and evaluation of geopressured geothermal wells

Description: This group of wells-of-opportunity (WOOs) consists of four reentry candidates located in Southern Louisiana. The four Louisiana wells have penetrated a thick section of deep hot and geopressured Miocene or Oligocene sand. Thus the geologic risk is essentially eliminated. Each of these wells has been abandoned. Particular emphasis was placed on selecting wells which are reported to have been left in such a mechanical condition that the risk of reentry operations is low. Every effort will be made to further check any well chosen for unreported conditions. Description, reentry proecdure, testing procedures, and cost estimates are presented for each well. (MHR)
Date: March 1, 1978
Partner: UNT Libraries Government Documents Department

Hydrogeochemical and stream sediment reconnaissance basic data for Corpus Christi NTMS quadrangle, Texas

Description: Results of a reconnaissance geochemical survey of the Corpus Christi Quadrangle, Texas, are reported. Field and laboratory data are presented for 119 groundwater samples and 57 stream sediment samples. Also included is a brief discussion on the geology and hydrology of the quadrangle. Groundwater data indicate that uranium concentrations above the 85th percentile occur primarily in a trend in western Nueces County. With one exception, waters in the trend are produced from the Evangeline aquifer and have high values for selenium and strontium. Owing to urbanization, low topographic relief, and the presence of Recent-to-Pleistocene surface material, stream sediment data were found to be less than optimum for the determination of the potential for uranium mineralization, and variation in uranium concentrations between units may simply reflect lithologic differences.
Date: May 31, 1980
Partner: UNT Libraries Government Documents Department

Bipole-dipole interpretation with three-dimensional models (including a field study of Las Alturas, New Mexico)

Description: The bipole-dipole responses of three-dimensional (3D) prisms were studied using an integral equation numerical solution. Although response patterns are quite complex, the bipole-dipole method appears to be a useful, efficient means of mapping the areal distribution of resistivity. However, 3D modeling is required for quantitative interpretation. Computer time for our solution varies from negligible for small bodies to 6 minutes on a UNIVAC 1108 for the largest possible body (85 cubes). Bipole-dipole response varies significantly with bipole orientation and position, but simply changing the distance between the bipole and the body does not greatly affect the response. However, the response is complex and interpretation ambiguous if both transmitter electrodes are located directly over a body. Boundaries of shallow bodies are much better resolved than those of deep bodies. Conductive bodies produce false polarization highs that can confuse interpretation. It is difficult to distinguish the effects of depth and resistivity contrast, and, as with all electrical methods, depth extent is difficult to resolve. Interactive interpretation of bipole-dipole field results from a geothermal prospect in New Mexico illustrates the value of the 3D modeling technique.
Date: September 1, 1979
Creator: Hohmann, G.W. & Jiracek, G.R.
Partner: UNT Libraries Government Documents Department

Assessment of potential increased oil production by polymer-waterflood in northern and southern mid-continent oil fields. Final report

Description: A conventional waterflood in the North Stanley Field, Osage County, Oklahoma, nearing the economic limit, was modified by substituting an aqueous solution of polyacrylamides for brine as the intected fluid. Remedial operations on existing facilities were performed before polymer injection began. Positive oil production response was achieved from this 1000-acre project, a maximum EOR production rate of about 200 barrels per day being achieved within 1-1/2 years after the start of polymer injection. Based on performance to January 1979, ultimate EOR recovery is estimated at 500,000 barrels.
Date: September 1, 1979
Creator: Pease, R.W.; Durham, E.N. & Watson, J.A.
Partner: UNT Libraries Government Documents Department

Borehole Plugging Program. Status report, October 1, 1978-September 30, 1979

Description: This program is in support of the Waste Isolation Pilot Plant (WIPP) proposed for southeastern New Mexico. Current-year activities cover management, materials, instrumentation, and field tests. Proposed FY 80 activities are also outlined. (DLC)
Date: January 1, 1980
Creator: Christensen, C.L.; Cook, C.W. & Gulick, C.W.
Partner: UNT Libraries Government Documents Department

Environmental baseline monitoring in the area of general crude oil - Department of Energy Pleasant Bayou Number 1 - a geopressured-geothermal test well, 1978. Volume IV. Appendix III. Noise survey, Radian Corporation, Austin, Texas. Annual report

Description: Results are presented of a study to determine the acoustical noise distribution and impacts of the geothermal/geopressure well drilling operation near Chocolate Bayou in South Texas. Detailed noise survey data were included in a part of the study for computer simulations to develop representative and worst-case drilling operation noise predictions. Also conducted were baseline noise measurements throughout the Peterson Landing residential area. (MHT)
Date: January 1, 1979
Creator: Gustavson, T.C.
Partner: UNT Libraries Government Documents Department

Geopressured-geothermal resource development on public free school lands

Description: The study's findings and recommendations are based upon analysis of the following: financial and economic feasibility of geopressured-geothermal resource development; possible ecological, social, and economic impacts of resource development on PFSL; and legal issues associated with resource development. The results of the analysis are summarized and are discussed in detail in a series of four technical papers which accompany this volume. Existing rules of the General Land Office (GLO), the School Land Board (SLB), and the Railroad Commission of Texas (RRC) were reviewed in light of the above analysis and were discussed with the agencies. The study's recommendations resulted from this analytical and review process; they are discussed. The preliminary draft rules and regulations to govern resource development on PFSL are presented in Appendix A; the accompanying forms and model lease are found in Appendix B.
Date: July 1, 1979
Partner: UNT Libraries Government Documents Department

Evaluation of the solar building, Albuquerque, New Mexico. Data losses and sensor faults

Description: Discussions of both known data losses and how they occured, and of diagnostic methods used to detect sensor faults are presented. Measures taken to reduce both data losses and sensor faults are also discussed. Appendix A presents: lists of dates for which 24 hours of data were recorded, lists of dates and hours for which data is missing, and lists of dates and hours for which partial sets of data were obtained due to failure of the data acquisition system. Appendix B contains lists of observations and actions pertinentsor faults.
Date: September 1, 1976
Creator: Wildin, M.W.; Swick, D.E. & Gilman, S.F.
Partner: UNT Libraries Government Documents Department

Field test programs of borehole plugs in southeastern New Mexico

Description: This paper presents the status of the Borehole Plugging Program underway for the plugging of drill holes on and near the proposed Waste Isolation Pilot Plant (WIPP) in southeastern New Mexico. This program will provide the technology for plugging wellbores when required at repository decommissioning.
Date: October 1, 1979
Creator: Christensen, C.L.
Partner: UNT Libraries Government Documents Department

Structural geology of wells of opportunity tested during 1980 and 1981

Description: Six geopressured-geothermal reservoirs have been tested. These reservoirs have been isolated in one or more directions by down-to-the-coast growth-type faulting. The two main types are those bounded updip by a single sealing fault and anticlinal traps bounded both up and down dip of the structure. Additional permeability barriers were encountered during testing. These barriers were not predicted in the original geologic evaluations and show the need to seek larger reservoirs in future tests.
Date: January 1, 1981
Creator: Peterson, K.P.
Partner: UNT Libraries Government Documents Department

Evaluation of the Solar Building, Albuquerque, New Mexico: instrumentation of building and system

Description: The instrumentation used to obtain data on the Solar Building, Albuquerque, New Mexico during the period November, 1974, through April, 1976 is described. Attention is focused on the types of instrumentation used: their principles of operation, sensitivity, range and where pertinent, installation. Locations of sensors are identified, so far as this pertains to obtaining accurate and adequate data. A list of sensors monitored in the third period is presented, as an example in appendix A. For convenience, the physical quantities measured and the type of instrument used to measure each are presented. The nature of the output from the instrument and the normal method of recording that output are also given.
Date: July 1, 1976
Creator: Wildin, M.W.; McLaughlin, E.R. & Gilman, S.F.
Partner: UNT Libraries Government Documents Department

Integration of NURE and other data sets with emphasis on their utilization in generating exploration models in the Lubbock, TX 1/sup 0/ x 2/sup 0/ Quadrangle

Description: The study reviewed the geology of the region covered by the Lubbock, Texas 1/sup 0/ x 2/sup 0/ NTMS Quadrangle. The geology was integrated with NURE aerial radiometric data that had been recorded before the study was undertaken. The integration indicates that several of the geologic units in the area have recognizable radiometric signatures. These signatures were checked and substantiated by two ground radiometric survey systems, one truck-mounted and one hand-held. Numerous areas were seen which suggested that areas had been mismapped, that recent wind or stream action had modified the surface exposure of units, or that the radiometric data acquisition systems were able to detect surface units which were too small to be presented at the scale of the published geologic map. Two exploration models for the Lubbock region are proposed. The first and most obvious model involves basal Dockum (Triassic) sandstone which has been known for twenty years as a potentially economic uranium zone. The second model is more speculative. By integrating subsurface geologic data, NURE HSSR data, and ground and airborne radiometric data, a band of anomalies is seen extending in a generally north-south direction at the edge of the maximum eastern subsurface extent of Cretaceous rocks. Related to this band of anomalies is the group of very high radiometric anomalies over the Pleistocene lake basins in the southwestern corner of the study area. The basins also may be potential exploration targets.
Date: May 1, 1979
Creator: Lankston, M.M. & Lankston, R.W.
Partner: UNT Libraries Government Documents Department

Variability of solar radiation at four selected stations in the United States. Final report, October 1, 1977-September 30, 1978

Description: The solar radiations considered are the total of direct and diffuse radiant energies received on a horizontal surface at ground level by a pyranometer during solar hours. Four stations, at Seattle-Tacoma, Washington; Madison, Wisconsin; Charleston, South Carolina; and Albuquerque, New Mexico were selected to represent different climatic conditions across the United States. The data were obtained from the National Climatic Center, Asheville, North Carolina. The data can be fitted by either a normal or gamma distribution and, for simplicity, a normal distribution was used. The coefficients of variation for all stations over the years were relatively low, and in general, were lower for summer months than for winter months. Of the four stations tested, Albuquerque had the lowest coefficients of variation and Seattle-Tacoma had the highest. It was estimated that no more than 16 years of records are needed for any of these stations to estimate a mean value which is within 10% of the true mean. Both the continuous daylight hours of high solar radiation (over 1100 kJ/m/sup 2//hr) and the accumulated hourly solar radiation for these durations were studied.
Date: October 1, 1979
Creator: Shen, H.W. & Wang, W.C.
Partner: UNT Libraries Government Documents Department

Economic factors relevant for electric power produced from hot dry rock geothermal resources: a case study for the Fenton Hill, New Mexico, area

Description: The case study described here concerns an HDR system which provides geothermal fluids for a hypothetical electric plant located in the Fenton Hill area in New Mexico's Jemez Mountains. Primary concern is focused on the implications of differing drilling conditions, as reflected by costs, and differing risk environments for the potential commercialization of an HDR system. Drilling costs for best, medium and worst drilling conditions are taken from a recent study of drilling costs for HDR systems. Differing risk environments are represented by differing rate-of-return requirements on stocks and interest on bonds which the HDR system is assumed to pay; rate of return/interest combinations considered are 6%/3%, 9%/6%, 12%/9% and 15%/12%. The method of analysis used here is that of determining the minimum busbar cost for electricity for this case study wherein all costs are expressed in annual equivalent terms. The minimum cost design for the electric generating plant is determined jointly with the minimum cost design for the HDR system. The interdependence between minimum cost designs for the plant and HDR system is given specific attention; the optimum design temperature for the plant is shown here to be lower than one might expect for conventional power plants - in the range 225/sup 0/ to 265/sup 0/C. Major results from the analyses of HDR-produced electricity in the Fenton Hill area are as follows. With real, inflation-free debt/equity rates of 6% and 9%, respectively, the minimum busbar cost is shown to lie in the range 18 to 29 mills/kwh. When real debt/equity rates rise to 12% and 15%, busbar costs rise to 24 to 39 mills/kwh.
Date: December 1, 1979
Creator: Cummings, R.G.; Morris, G.; Arundale, C.J. & Erickson, E.L.
Partner: UNT Libraries Government Documents Department

Wilcox sandstone reservoirs in the deep subsurface along the Texas Gulf Coast - their potential for production of geopressured geothermal energy. Final report

Description: The following subjects are included: regional setting, stratigraphic sections, Lower Wilcox sandstone distribution, formation pressure, formation temperature used to delineate geothermal fairways, Zapata Fairway, Duval Fairway, Live Oak Fairway, De Witt Fairway, Colorado Fairway, and Harris Fairway. Depositional and structural style, formation pressures and temperatures, porosity and permeability, formation water salinity, and Cuero Prospect are covered for De Witt Fairway. Depositional and structural style, formation and fluid properties, and Eagle Lake Prospect are covered for Colorado Fairway. (MHR)
Date: October 1, 1979
Creator: Debout, D.G.; Weise, B.R.; Gregory, A.R. & Edwards, M.B.
Partner: UNT Libraries Government Documents Department

Analysis of Cameron Parish geopressured aquifer. Final report

Description: The Sweet Lake geopressured-geothermal prospect is located in northern Cameron Parish, Louisiana in T.12 S., R. 7 W. and T. 12 S., R. 8 W. approximately 10 to 15 miles south of Lake Charles. The region is characterized by Cenozoic sand and clay deposits of geosynclinal thickness and differentially uplifted salt structures. The primary geopressured-geothermal aquifer is the Miogyp sand of the Camerina zone (Upper Frio formation of Oligocene-Miocene age). The main prospect is located in a basin on the north flank of the Hackberry-Big Lake-Sweet Lake salt ridge. Interpretation of 27 miles of seismic lines and 17 deep well logs localizes the prospect in a basin with northwesterly dip in a graben between east--west faults converging eastward. Aquifer depth ranges from 14,000 to 18,000 feet. Net sand thickness exceeds 400 feet with 22% porosity. Temperatures range from 280/sup 0/F. (corrected) at 14,000 feet to 350/sup 0/F. at 18,000 feet. Geopressures occur below 9,000 feet with mud weight equivalents in the sand from 12 to 13 pounds per gallon. Net sand volume of one cubic mile is estimated in the area mapped.
Date: September 1, 1978
Creator: Durham, C.O. Jr.
Partner: UNT Libraries Government Documents Department

Geothermal energy impact in Brazoria County. Final report, 15 July 1978-November 30, 1979

Description: All activities performed by Alvin Community College and the University of Texas at Austin in association with the development of Geopressured-Geothermal energy are contained in this report. A discussion of the progress of the Test Well is also contained herein. Public seminars and workshops were presented to the local community. A summer institute in energy was also presented to local public school teachers. A compaign to publicize the development of the new energy resource was also waged. An overall evaluation of the project is also attached.
Date: June 1, 1980
Creator: Horine, B.
Partner: UNT Libraries Government Documents Department

Feasibility study for establishing a centralized geothermal data base for New Mexico. Final report, June 1, 1979-October 15, 1979

Description: The purpose of this work is to catalog the information available and to make recommendations toward improving its accessibility. Existing computerized and non-computerized data sources are identified at both the state and national level. The content and accessibility of each such data base are investigated, as well as its suitability for aiding geothermal development. A catalog of such information is provided for each of the following data sources: GEOTHERM, WATSORE, STORIT, RPPM, GRID, HISS, EID air quality, and EID water quality. The available computing facilities within the state are evaluated for their appropriateness as a central storage facility for the many data sources. Recommendations are made for the establishment of a centralized geothermal/environmental data base. Included are recommendations for the computing facilities to be used by such a data base. How to obtain access to a given data base is described. This includes whether the data base is accessible from within New Mexico, necessary agreements, and contact persons. A glossary of computer-related terms and a brief description of knowledge-based problem-solving are included. (MHR)
Date: January 1, 1980
Creator: Klimowicz, G. & Martin, N.
Partner: UNT Libraries Government Documents Department

Creep healing of fractures in rock salt

Description: Fracture and healing experiments were performed on specimens of bedded salt from the Salado formation, southeastern New Mexico. Short rod specimens (100 mm in diameter) were loaded to failure in tension. During each test, a crack was initiated along the axis of the specimen. The fracture toughness of the salt was determined from the resulting load-crack opening displacement record. After the test, each specimen was pieced back together, jacketed and placed in a pressure vessel under hydrostatic pressure for several days. The confining pressure (10 to 35 MPa), temperature (22 to 100/sup 0/C) and healing time (4 to 8 days) were varied to determine the effect of each on the healing process. Upon removal from the pressure vessel, each sample was retested and the toughness of the healed fracture was determined. Results show that the salt specimens regained 70 to 80% of their original strength under all conditions except at the lowest temperature and pressure where specimens regained only 20 to 30% of their original strength. It is suspected that the primary mechanism involved is creep of asperities along the fracture surface which forms an interlocking network. Thus, the healing pressure is probably the most significant variable.
Date: August 1, 1980
Creator: Costin, L. S. & Wawersik, W. R.
Partner: UNT Libraries Government Documents Department