Partner
UNT Libraries Government Documents Department
479
UNT Libraries
230
Oklahoma Historical Society
100
Sweetwater/Nolan County City-County Library
56
Livingston Municipal Library
35
Dublin Public Library
33
Singletary Memorial Library
33
Comanche Public Library
20
Nellie Pederson Civic Library
19
The Old Jail Art Center
19
43 More
Collection
Texas Digital Newspaper Program
592
Tocker Foundation Grant
224
The Greensheet
205
Federal Register
168
Office of Scientific & Technical Information Technical Reports
155
Oklahoma Digital Newspaper Program
109
Sweetwater Reporter
56
Texas State Publications
52
Polk County Newspapers
35
Congressional Research Service Reports
34
80 More
Degree Department
Degree Discipline
Degree Level
Country
Year
Month
Language
1,223 Matching Results
Results open in a new window/tab. Unexpected Results? Search the Catalog Instead.
Results:
1 - 24 of
1,223
next
Mineral Wells East Quadrangle
Satellite image topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
2010
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Mineral Wells West Quadrangle
Satellite image topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
2010
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
North Texas Star (Mineral Wells, Tex.), November 2010
Monthly newspaper from Mineral Wells, Texas that includes history and travel stories along with advertising.
Date:
November 1, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
North Texas Star (Mineral Wells, Tex.), December 2010
Monthly newspaper from Mineral Wells, Texas that includes history and travel stories along with advertising.
Date:
December 1, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
North Texas Star (Mineral Wells, Tex.), June 2010
Monthly newspaper from Mineral Wells, Texas that includes history and travel stories along with advertising.
Date:
June 1, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
North Texas Star (Mineral Wells, Tex.), July 2010
Monthly newspaper from Mineral Wells, Texas that includes history and travel stories along with advertising.
Date:
July 1, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Mountaintop Mining: Background on Current Controversies
This report provides background on regulatory requirements, controversies and legal challenges to mountaintop mining, and recent Administration actions. Congressional interest in these issues also is discussed, including legislation in the 111th Congress seeking to restrict the practice of mountaintop mining and other legislation intended to block the Obama Administration’s regulatory actions.
Date:
April 12, 2010
Creator:
Copeland, Claudia
Object Type:
Report
System:
The UNT Digital Library
Landowner's Guide to Plugging Abandoned Water Wells
This publication contains information on the hazards associated with abandoned wells, including groundwater contamination.
Date:
March 2010
Creator:
Texas Commission on Environmental Quality. Texas Groundwater Protection Committee.
Object Type:
Pamphlet
System:
The Portal to Texas History
Oil and Gas Bonds: Bonding Requirements and BLM Expenditures to Reclaim Orphaned Wells
A letter report issued by the Government Accountability Office with an abstract that begins "The Federal Land Policy and Management Act of 1976 directs the Department of the Interior (Interior) to manage lands for multiple uses while also taking any action to prevent "unnecessary or undue degradation" of the land. To do this, Interior's Bureau of Land Management (BLM), among other things, requires oil and gas operators to reclaim the land they disturb and post a bond to help ensure they do so. Despite these requirements, not all operators perform reclamation. If the bond is not sufficient to cover well plugging and surface reclamation and there are no responsible or liable parties, the well is considered "orphaned," and BLM uses federal dollars to fund reclamation. The 12 western states where most oil and gas production occurs and other Interior agencies also require bonds to ensure reclamation. GAO was asked to (1) determine the number, value, and coverage of bonds held by BLM for oil and gas operations; (2) determine the amount that BLM has paid to reclaim orphaned wells over the past 20 years and the number of orphaned wells BLM has identified but has not yet reclaimed; and (3) …
Date:
January 27, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Buoyancy effects on upward brine displacement caused by CO2 injection
Upward displacement of brine from deep reservoirs driven by pressure increases resulting from CO{sub 2} injection for geologic carbon sequestration may occur through improperly sealed abandoned wells, through permeable faults, or through permeable channels between pinch-outs of shale formations. The concern about upward brine flow is that, upon intrusion into aquifers containing groundwater resources, the brine may degrade groundwater. Because both salinity and temperature increase with depth in sedimentary basins, upward displacement of brine involves lifting fluid that is saline but also warm into shallower regions that contain fresher, cooler water. We have carried out dynamic simulations using TOUGH2/EOS7 of upward displacement of warm, salty water into cooler, fresher aquifers in a highly idealized two-dimensional model consisting of a vertical conduit (representing a well or permeable fault) connecting a deep and a shallow reservoir. Our simulations show that for small pressure increases and/or high-salinity-gradient cases, brine is pushed up the conduit to a new static steady-state equilibrium. On the other hand, if the pressure rise is large enough that brine is pushed up the conduit and into the overlying upper aquifer, flow may be sustained if the dense brine is allowed to spread laterally. In this scenario, dense brine only …
Date:
January 15, 2010
Creator:
Oldenburg, C.M. & Rinaldi, A.
Object Type:
Article
System:
The UNT Digital Library
Changes in the Arctic: Background and Issues for Congress
The diminishment of Arctic sea ice has led to increased human activities in the Arctic, and has heightened concerns about the region's future. Issues such as Arctic sovereignty claims; commercial shipping through the Arctic; Arctic oil, gas, and mineral exploration; endangered Arctic species; and increased military operations in the Arctic could cause the region in coming years to become an arena of international cooperation, competition, or conflict. This report provides an overview of Arctic-related issues for Congress, and refers readers to more in-depth CRS reports on specific Arctic-related issues.
Date:
October 15, 2010
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library
2010 Census County Block Map: Palo Pinto County, Inset B01
Inset map for Palo Pinto County, Texas showing detail within a census block for which the U.S. Census Bureau collected data. The plotted map scale is 1:8,015.
Date:
2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
Evaluation of Non-Nuclear Techniques for Well Logging: Technology Evaluation
This report presents an initial review of the state-of-the-art nuclear and non-nuclear well logging methods and seeks to understand the technical and economic issues if AmBe, and potentially other isotope sources, are reduced or even eliminated in the oil-field services industry. Prior to considering alternative logging technologies, there is a definite need to open up discussions with industry regarding the feasibility and acceptability of source replacement. Industry views appear to range from those who see AmBe as vital and irreplaceable to those who believe that, with research and investment, it may be possible to transition to electronic neutron sources and employ combinations of non-nuclear technologies to acquire the desired petro-physical parameters. In one sense, the simple answer to the question as to whether petro-physical parameters can be sensed with technologies other than AmBe is probably "Yes". The challenges come when attention turns to record interpretation. The many decades of existing records form a very valuable proprietary resource, and the interpretation of subtle features contained in these records are of significant value to the oil-gas exploration community to correctly characterize a well. The demonstration of equivalence and correspondence/correlation between established and any new sensing modality, and correlations with historic records is …
Date:
November 1, 2010
Creator:
Bond, Leonard J.; Denslow, Kayte M.; Griffin, Jeffrey W.; Dale, Gregory E.; Harris, Robert V.; Moran, Traci L. et al.
Object Type:
Report
System:
The UNT Digital Library
2010 Census County Block Map: Palo Pinto County, Block 14
Parent map for Palo Pinto County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date:
2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
Responses of microbial community functional structures to pilot-scale uranium in situ bioremediation
A pilot-scale field test system with an inner loop nested within an outer loop was constructed for in situ U(VI) bioremediation at a US Department of Energy site, Oak Ridge, TN. The outer loop was used for hydrological protection of the inner loop where ethanol was injected for biostimulation of microorganisms for U(VI) reduction/immobilization. After 2 years of biostimulation with ethanol, U(VI) levels were reduced to below drinking water standard (<30 {micro}gl{sup -1}) in the inner loop monitoring wells. To elucidate the microbial community structure and functions under in situ uranium bioremediation conditions, we used a comprehensive functional gene array (GeoChip) to examine the microbial functional gene composition of the sediment samples collected from both inner and outer loop wells. Our study results showed that distinct microbial communities were established in the inner loop wells. Also, higher microbial functional gene number, diversity and abundance were observed in the inner loop wells than the outer loop wells. In addition, metal-reducing bacteria, such as Desulfovibrio, Geobacter, Anaeromyxobacter and Shewanella, and other bacteria, for example, Rhodopseudomonas and Pseudomonas, are highly abundant in the inner loop wells. Finally, the richness and abundance of microbial functional genes were highly correlated with the mean travel time …
Date:
February 15, 2010
Creator:
Xu, M.; Wu, W.-M.; Wu, L.; He, Z.; Van Nostrand, J.D.; Deng, Y. et al.
Object Type:
Article
System:
The UNT Digital Library
Methane hydrate distribution from prolonged and repeated formation in natural and compacted sand samples: X-ray CT observations
To study physical properties of methane gas hydrate-bearing sediments, it is necessary to synthesize laboratory samples due to the limited availability of cores from natural deposits. X-ray computed tomography (CT) and other observations have shown gas hydrate to occur in a number of morphologies over a variety of sediment types. To aid in understanding formation and growth patterns of hydrate in sediments, methane hydrate was repeatedly formed in laboratory-packed sand samples and in a natural sediment core from the Mount Elbert Stratigraphic Test Well. CT scanning was performed during hydrate formation and decomposition steps, and periodically while the hydrate samples remained under stable conditions for up to 60 days. The investigation revealed the impact of water saturation on location and morphology of hydrate in both laboratory and natural sediments during repeated hydrate formations. Significant redistribution of hydrate and water in the samples was observed over both the short and long term.
Date:
July 1, 2010
Creator:
Rees, E.V.L.; Kneafsey, T.J. & Seol, Y.
Object Type:
Article
System:
The UNT Digital Library
P.L. 94-171 County Block Map (2010 Census): Palo Pinto County, Inset B01
Inset map for Palo Pinto County, Texas showing detail within a census block for which the U.S. Census Bureau collected data. The plotted map scale is 1:8,005.
Date:
December 14, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Palo Pinto County, Block 14
Parent map for Palo Pinto County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date:
December 14, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
Drilling and Production Testing the Methane Hydrate Resource Potential Associated with the Barrow Gas Fields
In November of 2008, the Department of Energy (DOE) and the North Slope Borough (NSB) committed funding to develop a drilling plan to test the presence of hydrates in the producing formation of at least one of the Barrow Gas Fields, and to develop a production surveillance plan to monitor the behavior of hydrates as dissociation occurs. This drilling and surveillance plan was supported by earlier studies in Phase 1 of the project, including hydrate stability zone modeling, material balance modeling, and full-field history-matched reservoir simulation, all of which support the presence of methane hydrate in association with the Barrow Gas Fields. This Phase 2 of the project, conducted over the past twelve months focused on selecting an optimal location for a hydrate test well; design of a logistics, drilling, completion and testing plan; and estimating costs for the activities. As originally proposed, the project was anticipated to benefit from industry activity in northwest Alaska, with opportunities to share equipment, personnel, services and mobilization and demobilization costs with one of the then-active exploration operators. The activity level dropped off, and this benefit evaporated, although plans for drilling of development wells in the BGF's matured, offering significant synergies and cost savings …
Date:
February 22, 2010
Creator:
McRae, Steve; Walsh, Thomas; Dunn, Michael & Cook, Michael
Object Type:
Report
System:
The UNT Digital Library
System Planning With the Hanford Waste Operations Simulator
At the U. S. Department of Energy's Hanford Site in southeastern Washington State, 216 million liters (57 million gallons) of nuclear waste is currently stored in aging underground tanks, threatening the Columbia River. The River Protection Project (RPP), a fully integrated system of waste storage, retrieval, treatment, and disposal facilities, is in varying stages of design, construction, operation, and future planning. These facilities face many overlapping technical, regulatory, and financial hurdles to achieve site cleanup and closure. Program execution is ongoing, but completion is currently expected to take approximately 40 more years. Strategic planning for the treatment of Hanford tank waste is by nature a multi-faceted, complex and iterative process. To help manage the planning, a report referred to as the RPP System Plan is prepared to provide a basis for aligning the program scope with the cost and schedule, from upper-tier contracts to individual facility operating plans. The Hanford Tank Waste Operations Simulator (HTWOS), a dynamic flowsheet simulation and mass balance computer model, is used to simulate the current planned RPP mission, evaluate the impacts of changes to the mission, and assist in planning near-term facility operations. Development of additional modeling tools, including an operations research model and a …
Date:
January 14, 2010
Creator:
Crawford, T. W.; Certa, P. J. & Wells, M. N.
Object Type:
Article
System:
The UNT Digital Library
Southwestern Regional Partnership For Carbon Sequestration (Phase 2) Pump Canyon CO2- ECBM/Sequestration Demonstration, San Juan Basin, New Mexico
Within the Southwest Regional Partnership on Carbon Sequestration (SWP), three demonstrations of geologic CO{sub 2} sequestration are being performed -- one in an oilfield (the SACROC Unit in the Permian basin of west Texas), one in a deep, unmineable coalbed (the Pump Canyon site in the San Juan basin of northern New Mexico), and one in a deep, saline reservoir (underlying the Aneth oilfield in the Paradox basin of southeast Utah). The Pump Canyon CO{sub 2}-enhanced coalbed methane (CO{sub 2}/ECBM) sequestration demonstration project plans to demonstrate the effectiveness of CO{sub 2} sequestration in deep, unmineable coal seams via a small-scale geologic sequestration project. The site is located in San Juan County, northern New Mexico, just within the limits of the high-permeability fairway of prolific coalbed methane production. The study area for the SWP project consists of 31 coalbed methane production wells located in a nine section area. CO{sub 2} was injected continuously for a year and different monitoring, verification and accounting (MVA) techniques were implemented to track the CO{sub 2} movement inside and outside the reservoir. Some of the MVA methods include continuous measurement of injection volumes, pressures and temperatures within the injection well, coalbed methane production rates, pressures and …
Date:
January 31, 2010
Creator:
Advanced Resources International
Object Type:
Report
System:
The UNT Digital Library
Geothermal Energy for New Mexico: Assessment of Potential and Exploratory Drilling
This report summarizes the drilling operations and subsequent interpretation of thermal and geochemical data from the New Mexico Tech NMT-2GT (OSE RG- 05276 POD) test well. This slim hole was drilled along an elongate heat-flow anomaly at the base of the Socorro Mountains to better assess the geothermal resource potential (Socorro Peak geothermal system) on the western side of the New Mexico Tech campus in Socorro, New Mexico. The reservoir depth, hydraulic properties, temperature and chemistry were unknown prior to drilling. The purpose of the NMT-2GT (OSE RG-05276 POD) well was to explore the feasibility of providing geothermal fluids for a proposed district space heating system on the New Mexico Tech campus. With DOE cost over runs funds we completed NMT-2GT to a depth of 1102 feet at the Woods Tunnel drill site. Temperatures were nearly constant (41 oC ) between a depth of 400ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂâÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ1102 feet. Above this isothermal zone, a strong temperature gradient was observed (210 oC /km) beneath the water table consistent with vertical convective heat transfer. The existence of a groundwater upflow zone was further supported by measured vertical hydraulic head measurements which varied between about 258 feet at the water table to 155 feet at a …
Date:
February 17, 2010
Creator:
Mark Person, Lara Owens, James Witcher
Object Type:
Report
System:
The UNT Digital Library
2010 Census County Block Map: Palo Pinto County, Index
Index map for Palo Pinto County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:92,115.
Date:
2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Palo Pinto County, Index
Index map for Palo Pinto County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:92,115.
Date:
December 14, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History