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3-D Seismic Methods for Geothermal Reservoir Exploration and Assessment--Summary
A wide variety of seismic methods covering the spectrum from DC to kilohertz have been employed at one time or the other in geothermal environments. The reasons have varied from exploration for a heat source to attempting to find individual fractures producing hot fluids. For the purposes here we will assume that overall objective of seismic imaging is for siting wells for successful location of permeable pathways (often fracture permeability) that are controlling flow and transport in naturally fractured reservoirs. The application could be for exploration of new resources or for in-fill/step-out drilling in existing fields. In most geothermal environments the challenge has been to separate the ''background'' natural complexity and heterogeneity of the matrix from the fracture/fault heterogeneity controlling the fluid flow. Ideally one not only wants to find the fractures, but the fractures that are controlling the flow of the fluids. Evaluated in this work is current state-of-the-art surface (seismic reflection) and borehole seismic methods (Vertical Seismic Profiling (VSP), Crosswell and Single Well) to locate and quantify geothermal reservoir characteristics. The focus is on active methods; the assumption being that accuracy is needed for successful well siting. Passive methods are useful for exploration and detailed monitoring for in-fill …
Date:
July 14, 2003
Creator:
Majer, E. L.
Object Type:
Report
System:
The UNT Digital Library
200 Area monthly report, June 1966
None
Date:
July 14, 1966
Creator:
Christy, J. T.
Object Type:
Report
System:
The UNT Digital Library
234-5 status reports
On July 14, 1949, and office memorandum was written about operations of a reprocessing building on the Hanford Site being suspended due to the mishandling of some plutonium powder. The letter describes the process of decontamination of the building surfaces, and the ventilation of the rooms of that building. It also describes the problem with the ventilation fans due to increased temperature and pressures.
Date:
July 14, 1949
Creator:
Lowe, W. W.
Object Type:
Report
System:
The UNT Digital Library
401(k) Plans and Retirement Savings: Issues for Congress
Over the past 25 years, defined contribution (DC) plans - including 401(k) plans - have become the most prevalent form of employer-sponsored retirement plan in the United States. This report describes seven major policy issues with respect to defined contribution plans: 1) access to employer-sponsored retirement plans; 2) participation in employer-sponsored plans; 3) contribution rates; 4) investment choices; 5) fee disclosure; 6) leakage from retirement savings; and 7) converting retirement savings into income.
Date:
July 14, 2009
Creator:
Purcell, Patrick & Topoleski, John J.
Object Type:
Report
System:
The UNT Digital Library
2727-S Nonradioactive Dangerous Waste Storage Facility clean closure evaluation report
This report presents the analytical results of 2727-S NRDWS facility closure verification soil sampling and compares these results to clean closure criteria. The results of this comparison will determine if clean closure of the unit is regulatorily achievable. This report also serves to notify regulators that concentrations of some analytes at the site exceed sitewide background threshold levels (DOE-RL 1993b) and/or the limits of quantitation (LOQ). This report also presents a Model Toxics Control Act Cleanup (MTCA) (WAC 173-340) regulation health-based closure standard under which the unit can clean close in lieu of closure to background levels or LOQ in accordance with WAC 173-303-610. The health-based clean closure standard will be closure to MTCA Method B residential cleanup levels. This report reconciles all analyte concentrations reported above background or LOQ to this health-based cleanup standard. Regulator acceptance of the findings presented in this report will qualify the TSD unit for clean closure in accordance with WAC 173-303-610 without further TSD unit soil sampling, or soil removal and/or decontamination. Nondetected analytes require no further evaluation.
Date:
July 14, 1994
Creator:
Luke, S. N.
Object Type:
Report
System:
The UNT Digital Library
S. 3521, the Stop Over Spending Act of 2006: A Brief Summary
S. 3521, the Stop Over Spending Act of 2006, proposes several changes to the congressional budget process. This report provides a brief summary of the major provisions of S. 3521.
Date:
July 14, 2006
Creator:
Heniff, Bill, Jr.
Object Type:
Report
System:
The UNT Digital Library
79th Texas Legislature, First Called Session, House Concurrent Resolution 14
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to...
Date:
July 14, 2005
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
Abandoned Mines: Information on the Number of Hardrock Mines, Cost of Cleanup, and Value of Financial Assurances
Testimony issued by the Government Accountability Office with an abstract that begins "The General Mining Act of 1872 helped foster the development of the West by giving individuals exclusive rights to mine gold, silver, copper, and other hardrock minerals on federal land. However, miners often abandoned mines, leaving behind structures, safety hazards, and contaminated land and water. Four federal agencies--the Department of the Interior's Bureau of Land Management (BLM) and Office of Surface Mining Reclamation and Enforcement (OSM), the Department of Agriculture's Forest Service, and the Environmental Protection Agency (EPA)--fund the cleanup of some of these hardrock mine sites. From 2005 through 2009, GAO issued a number of reports and testimonies on various issues related to abandoned and current hardrock mining operations. This testimony summarizes some of the key findings of these reports and testimonies focusing on the (1) number of abandoned hardrock mines, (2) availability of information collected by federal agencies on general mining activities, (3) amount of funding spent by federal agencies on cleanup of abandoned mines, and (4) value of financial assurances for mining operations on federal land managed by BLM. In 2005, GAO recommended that BLM strengthen the management of its financial assurances, which BLM generally …
Date:
July 14, 2011
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Advanced fusion diagnostics. Final technical report, July 15, 1991--July 14, 1993
Key among various issues of ignited plasmas is understanding the physics of energy transfer between thermal plasma particles and magnetically confined, highly energetic charged ions in a tokamak device. The superthermal particles are products of fusion reactions. The efficiency of energy transfer by collisions, from charged fusion products (e.g., {alpha}-particles) to plasma ions, grossly determines whether or not plasma conditions are self-sustaining without recourse to auxiliary heating. Furthermore, should energy transfer (efficiency be poor, and substantial auxiliary heating power is required to maintain reacting conditions within the plasma, economics may preclude commercial viability of fusion reactors. The required charged fusion product information is contained in the energy distribution function of these particles. Knowledge of temporal variations of the superthermal particle energy distribution function could be used by a fusion reactor control system to balance plasma conditions between thermal runaway and a modicum of fusion product energy transfer. Therefore, diagnostics providing data on the dynamical transfer of alpha-particle and other charged fusion product energy to the plasma ions are essential elements for a fusion reactor control system to insure that proper plasma conditions are maintained. The objective of this work is to assess if spectral analysis of rf radiation emitted by …
Date:
July 14, 1993
Creator:
Moses, K. G.
Object Type:
Report
System:
The UNT Digital Library
ADVANCED TECHNOLOGIES FOR STRIPPER GAS WELL ENHANCEMENT
As part of Task 1 in Advanced Technologies for Stripper Gas Well Enhancement, Schlumberger Data & Consulting Services (DCS) joined with two Appalachian Basin producers, Great Lakes Energy Partners, LLC, and Belden & Blake Corporation to develop methodologies for identification and enhancement of stripper wells with economic upside potential. These industry partners previously provided us with data for more than 700 wells in northwestern Pennsylvania. Phase 1 goals of this project are to develop and validate methodologies that can quickly and cost-effectively identify underperforming wells with remediation potential. We have enhanced and streamlined our software and are using it with the latest versions of Microsoft's{trademark} Access and Excel programs. During the last quarter of 2002, Great Lakes provided us with additional data for approximately 2,200 wells located in their Cooperstown field situated in northwestern Pennsylvania. We identified approximately 130 potential remediation candidates, and Great Lakes personnel are currently reviewing this list for viable remediation. Within the last few weeks, a list of five candidates have been chosen for refract, in addition to two alternate wells. This field has provided a rigorous test of our software and analytical methods. We have processed all the information provided to us including the Cooperstown …
Date:
July 14, 2004
Creator:
MacDonald, Ronald J.
Object Type:
Report
System:
The UNT Digital Library
Advanced Technologies for Stripper Gas Well Enhancement
This report addresses a quarterly report about the advanced technologies of stripper gas well enhancement from July 1 to September 30, 2003
Date:
July 14, 2004
Creator:
MacDonald, Ronald J.
Object Type:
Report
System:
The UNT Digital Library
Advanced Technologies for Stripper Gas Well Enhancement
This report summarizes a quarterly report of the advanced technologies for stripper gas well enhancement during January 1 to March 31, 2004.
Date:
July 14, 2004
Creator:
MacDonald, Ronald J.
Object Type:
Report
System:
The UNT Digital Library
Advanced Technologies for Stripper Gas Well Enhancement
This report addresses a quarterly report of the advanced technologies for stripper gas well enhancement.
Date:
July 14, 2004
Creator:
MacDonald, Ronald J.
Object Type:
Report
System:
The UNT Digital Library
Advanced Thermal Barrier Coating System Development. Technical progress report
The objectives of the program are to provide an improved TBC system with increased temperature capability and improved reliability relative to current state of the art TBC systems. The development of such a coating system is essential to the ATS engine meeting its objectives. The base program consists of three phases: Phase I: Program Planning - Complete; Phase II: Development - Complete; and Phase III: Selected Specimen - Bench Test. Work was performed on the Phase II final report and on III of the program during the reporting period.
Date:
July 14, 2000
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Adversary Modeling for Allocation of Effort Across Countermeasures
None
Date:
July 14, 2006
Creator:
Lathrop, J F
Object Type:
Article
System:
The UNT Digital Library
Afghanistan Development: Enhancements to Performance Management and Evaluation Efforts Could Improve USAID's Agricultural Programs
A letter report issued by the Government Accountability Office with an abstract that begins "Eighty percent of Afghans are dependent on agriculture for their livelihoods. Agricultural assistance is a key U.S. contribution to Afghanistan's reconstruction efforts. Since 2002, the U.S. Agency for International Development (USAID) has awarded about $1.4 billion for agricultural programs to increase agricultural productivity, accelerate economic growth, and eliminate illicit drug cultivation. This report (1) describes the change in U.S. focus on agricultural assistance since 2002, (2) assesses USAID's performance management and evaluation of its agricultural programs, (3) analyzes the extent to which certain programs met targets, and (4) addresses efforts to mitigate implementation challenges. GAO reviewed USAID documents; analyzed program data; and interviewed program implementers and USAID officials in Washington, D.C., and Afghanistan. GAO has prepared this report as part of its ongoing efforts to monitor key aspects of U.S. efforts in Afghanistan."
Date:
July 14, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Afghanistan Development: Poverty and Major Crop Production (GAO-10-756SP), an E-supplement to GAO-10-368
Other written product issued by the Government Accountability Office with an abstract that begins "This document is an E-supplement to GAO-10-368. This e-supplement provides additional information on regional and provincial poverty and major crops produced in Afghanistan."
Date:
July 14, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Afghanistan: U.S. Foreign Assistance
The U.S. program of assistance to Afghanistan is intended to stabilize and strengthen the Afghan economic, social, political, and security environment so as to blunt popular support for extremist forces in the region. Since 2001, nearly $38 billion has been appropriated toward this effort. This report provides a "big picture" overview of the U.S. aid program and congressional action. It describes what various aid agencies report they are doing in Afghanistan. It does not address the effectiveness of their programs.
Date:
July 14, 2009
Creator:
Tarnoff, Curt
Object Type:
Report
System:
The UNT Digital Library
Aging and phase stability of waste package outer barrier
After aging for 16,000 hr at 593 C, P phase was found at Alloy 22 grain boundaries. At higher temperatures (as much as 760 C for the same aging time), both {mu} and P phase formed on grain boundaries and within the grains. Grain boundary carbides also form at 593 C and higher, but the amount of carbide is small compared to the p and P phases. A small amount of sigma phase forms in Alloy 22 after 16,000 hr at 704 and 760 C. LRO was seen after aging for 16,000 hr at 593 C and for 40,000 hr at 427 C, but ordering most likely begins at shorter times. More work must be done in phase identification. Samples aged at times less than 16,000 hr must be examined so that the phase evolution during aging can be determined. A procedure being developed for phase extraction and x-ray diffraction should make phase identification and quantification of the relative amounts of each phase easier. The times at which various stages of intermetallic precipitation occur in Alloy 22 base metal displayed an exponential (Arrhenius-type) temperature dependence. The activation energy was determined to be 290 kJ/mol. A more quantitative model based on …
Date:
July 14, 1999
Creator:
Summers, T & Turchi, P
Object Type:
Report
System:
The UNT Digital Library
Agricultural Credit: Institutions and Issues
This report discusses federal credit assistance for farmers and recent issues in Congress related to the programs.
Date:
July 14, 2010
Creator:
Monke, Jim
Object Type:
Report
System:
The UNT Digital Library
Airport Improvement Program
This issue brief discusses the Airport Improvement Program and its complement, the Passenger Facility Charge (PFC). After a brief history of federal support for airport construction and improvement, the report describes AIP funding, its source of revenues, funding distribution, the types of projects the program funds,AIP and PFC policy issues, and the allowable use of AIP funds for airport security purposes.
Date:
July 14, 2003
Creator:
Kirk, Robert S.
Object Type:
Report
System:
The UNT Digital Library
Los Alamos National Laboratory Site Integrated Management plan, uranium 233 storage and disposition. Volume 1: Project scope and description
This Site Integration Management plan provides the Los Alamos Response to the Defense Nuclear Facility Safety Board (DNFSB) Recommendation 97-1. This recommendation addresses the safe storage and management of the Departments uranium 233 ({sup 233}U) inventory. In the past, Los Alamos has used {sup 233}U for a variety of different weapons related projects. The material was used at a variety of sites in varying quantities. Now, there is a limited need for this material and the emphasis has shifted from use to storage and disposition of the material. The Los Alamos program to address the DNFSB Recommendation 97-1 has two emphases. First, take corrective action to address near term deficiencies required to provide safe interim storage of {sup 233}U. Second, provide a plan to address long term storage and disposition of excess inventory at Los Alamos.
Date:
July 14, 1997
Creator:
Nielsen, J. B. & Erickson, R.
Object Type:
Report
System:
The UNT Digital Library
Americans with Disabilities Act (ADA) Requirements Concerning the Provision of Interpreters by Hospitals and Doctors
The Americans with Disabilities Act prohibits discrimination against individuals with disabilities by places of public accommodations. A common question is whether this prohibition requires medical doctors and hospitals to provide an interpreter when they have a patient with a hearing disability. This requirement varies depending upon the situation presented but situations may arise where there is an obligation to provide an interpreter.
Date:
July 14, 2006
Creator:
Jones, Nancy Lee
Object Type:
Report
System:
The UNT Digital Library
Anaerobic bioprocessing of low-rank coals
We are seeking to find biological methods to remove carboxylic functionalities from low-rank coals and to assess the properties of the modified coal towards coal liquefaction. The main objectives for this quarter were : continuation of microbial consortia development and maintenance, evaluation of commercial decarboxylase, decarboxylation of lignite, demineralized Wyodak coal and model polymer, and characterization of biotreated coals. Specifically we report that two batch fermentor systems were completed and three other fermentors under optimum conditions for coal decarboxylation are in progress; that inhibition of growth of methanogens in the batch fermentor system enhanced the carbon dioxide production; that adapted microbial consortium produced more gas from lignite than Wyodak subbituminous coal; that phenylalanine decarboxylase exhibited insignificant coal decarboxylation activity; that two different microbial consortia developed on coal seem to be effective in decarboxylation of a polymer containing free carboxylic groups; and that CHN analyses of additional biotreated coals reconfirm increase in H/C ratio by 3--6%.
Date:
July 14, 1992
Creator:
Jain, M. K.; Narayan, R. & Han, O.
Object Type:
Report
System:
The UNT Digital Library