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Field Testing of Environmentally Friendly Drilling System
The Environmentally Friendly Drilling (EFD) program addresses new low-impact technology that reduces the footprint of drilling activities, integrates light weight drilling rigs with reduced emission engine packages, addresses on-site waste management, optimizes the systems to fit the needs of a specific development sites and provides stewardship of the environment. In addition, the program includes industry, the public, environmental organizations, and elected officials in a collaboration that addresses concerns on development of unconventional natural gas resources in environmentally sensitive areas. The EFD program provides the fundamentals to result in greater access, reasonable regulatory controls, lower development cost and reduction of the environmental footprint associated with operations for unconventional natural gas. Industry Sponsors have supported the program with significant financial and technical support. This final report compendium is organized into segments corresponding directly with the DOE approved scope of work for the term 2005-2009 (10 Sections). Each specific project is defined by (a) its goals, (b) its deliverable, and (c) its future direction. A web site has been established that contains all of these detailed engineering reports produced with their efforts. The goals of the project are to (1) identify critical enabling technologies for a prototype low-impact drilling system, (2) test the …
Date:
May 31, 2009
Creator:
Burnett, David
Object Type:
Report
System:
The UNT Digital Library
An Integrated Surface Engineering Technology Development for Improving Energy Efficiency of Engine Components
Frictional losses are inherent in most practical mechanical systems. The ability to control friction offers many opportunities to achieve energy conservation. Over the years, materials, lubricants, and surface modifications have been used to reduce friction in automotive and diesel engines. However, in recent years, progress in friction reduction technology has slowed because many of the inefficiencies have been eliminated. A new avenue for friction reduction is needed. Designing surfaces specifically for friction reduction with concomitant enhanced durability for various engine components has emerged recently as a viable opportunity due to advances in fabrication and surface finishing techniques. Recently, laser ablated dimples on surfaces have shown friction reduction properties and have been demonstrated successfully in conformal contacts such as seals where the speed is high and the load is low. The friction reduction mechanism in this regime appears to depend on the size, patterns, and density of dimples in the contact. This report describes modeling efforts in characterizing surface textures and understanding their mechanisms for enhanced lubrication under high contact pressure conditions. A literature survey is first presented on the development of descriptors for irregular surface features. This is followed by a study of the hydrodynamic effects of individual micro-wedge dimples …
Date:
May 31, 2009
Creator:
Hsu, Stephen; Chang, Liming & Zhan, Huan
Object Type:
Report
System:
The UNT Digital Library
Molecular mechanism of crystallization impacting calcium phosphate cements
In summary, SPM data has shown that (1) Mg inhibits growth on all steps but relatively high Mg/Ca ratios are needed. Extracting the mechanism of interaction requires more modeling of the kinetic data, but step morphology is consistent with incorporation. (2) Citrate has several effects depending on the citrate/Ca ratio. At the lowest concentrations, citrate increases the step free energy without altering the step kinetics; at higher concentrations, the polar step is slowed. (3) Oxalate also slows the polar step but additionally stabilizes a new facet, with a [100]{sub Cc} step. (4) Etidronate has the greatest kinetic impact of the molecules studied. At 7{micro}M concentrations, the polar step slows by 60% and a new polar step appears. However, at the same time the [10-1]{sub Cc} increases by 67%. It should be noted that all of these molecules complex calcium and can effect kinetics by altering the solution supersaturation or the Ca to HPO{sub 4}{sup 2-} ratio. For the SPM data shown, this effect was corrected for to distinguish the effect of the molecule at the crystal surface from the effect of the molecule on the solution speciation. The goal of this paper is to draw connections between fundamental studies of …
Date:
May 31, 2009
Creator:
Giocondi, J L; El-Dasher, B S; Nancollas, G H & Orme, C A
Object Type:
Article
System:
The UNT Digital Library
Probabilistic Risk Based Decision Support for Oil and Gas Exploration and Production Facilities in Sensitive Ecosystems
This report describes work performed during the initial period of the project 'Probabilistic Risk Based Decision Support for Oil and Gas Exploration and Production Facilities in Sensitive Ecosystems.' The specific region that is within the scope of this study is the Fayetteville Shale Play. This is an unconventional, tight formation, natural gas play that currently has approximately 1.5 million acres under lease, primarily to Southwestern Energy Incorporated and Chesapeake Energy Incorporated. The currently active play encompasses a region from approximately Fort Smith, AR east to Little Rock, AR approximately 50 miles wide (from North to South). The initial estimates for this field put it almost on par with the Barnett Shale play in Texas. It is anticipated that thousands of wells will be drilled during the next several years; this will entail installation of massive support infrastructure of roads and pipelines, as well as drilling fluid disposal pits and infrastructure to handle millions of gallons of fracturing fluids. This project focuses on gas production in Arkansas as the test bed for application of proactive risk management decision support system for natural gas exploration and production. The activities covered in this report include meetings with representative stakeholders, development of initial content …
Date:
May 31, 2009
Creator:
Thoma, Greg; Veil, John; Limp, Fred; Cothren, Jackson; Gorham, Bruce; Williamson, Malcolm et al.
Object Type:
Report
System:
The UNT Digital Library
QoS-Enabled, High-performance Storage Systms for Data-Intensive Scientific Computing: Final Report
This project's work resulted in the following research projects: (1) BORG - Block-reORGanization for Self-optimizing Storage Systems; (2) ABLE - Active Block Layer Extensions; (3) EXCES - EXternal Caching in Energy-Saving Storage Systems; (4) GRIO - Guaranteed-Rate I/O Scheduler. These projects together help in substantially advancing the over-arching project goal of developing 'QoS-Enabled, High-Performance Storage Systems'.
Date:
May 31, 2009
Creator:
Rangaswami, Raju
Object Type:
Report
System:
The UNT Digital Library
Spring 2009 Semiannual (III.H. and I.U.) Report for the HWMA/RCRA Post-Closure Permit for the INTEC Waste Calcining Facility at the INL Site
The Waste Calcining Facility is located at the Idaho Nuclear Technology and Engineering Center. In 1999, the Waste Calcining Facility was closed under and approved Hazardous Waste Management Act/Resource Conservation and Recovery Act Closure plan. Vessels and spaces were grouted and then covered with a concrete cap. This permit sets forth procedural requirements for groundwater characterization and monitoring, maintenance, and inspections of the Waste Calcining Facility to ensure continued protection of human health and the environment.
Date:
May 31, 2009
Creator:
Boehmer, Ann M.
Object Type:
Report
System:
The UNT Digital Library
Ultrasonic Examination of Double-Shell Tank 241-AW-105 Examination Completed April 2009.
AREVA Federal Services LLC (AFS), under a contract from Washington River Protection Solutions (WRPS), has performed an ultrasonic examination of selected portions of Double-Shell Tank 241-AW-105. PNNL is responsible for preparing a report(s) that describes the results of the AFS ultrasonic examinations.
Date:
May 31, 2009
Creator:
Pardini, Allan F.; Weier, Dennis R.; Anderson, Kevin K. & Hathaway, John E.
Object Type:
Report
System:
The UNT Digital Library
Vermont Biofuels Initiative: Local Production for Local Use to Supply a Portion of Vermont’s Energy Needs
The Vermont Biofuels initiative (VBI) is the Vermont Sustainable Jobs Fund’s (VSJF) biomass-to-biofuels market development program. Vermont is a small state with a large petroleum dependency for transportation (18th in per capita petroleum consumption) and home heating (55% of all households use petroleum for heating). The VBI marks the first strategic effort to reduce Vermont’s dependency on petroleum through the development of homegrown alternatives. As such, it supports the four key priorities of the U.S. Department of Energy’s Multi-year Biomass Plan: 1.) Dramatically reduce dependence on foreign oil; 2.) Promote the use of diverse, domestic and sustainable energy resources; 3.) Reduce carbon emissions from energy production and consumption; 4.) Establish a domestic bioindustry. In 2005 VSJF was awarded with a $496,000 Congressionally directed award from U.S. Senator Patrick Leahy. This award was administered through the U.S. Department of Energy (DE-FG36- 05GO85017, hereafter referred to as DOE FY05) with $396,000 to be used by VSJF for biodiesel development and $100,000 to be used by the Vermont Department of Public Service for methane biodigester projects. The intent and strategic focus of the VBI is similar to another DOE funded organization– the Biofuels Center of North Carolina–in that it is a nonprofit driven, …
Date:
May 31, 2009
Creator:
Sawyer, Scott & Kahler, Ellen
Object Type:
Report
System:
The UNT Digital Library
81st Texas Legislature, House Bill 1036, Chapter 279
Bill introduced by the Texas Senate relating to amendments to the Texas Timeshare Act.
Date:
May 30, 2009
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Bill 1188, Chapter 280
Bill introduced by the Texas Senate relating to the interstate purchase of certain firearms.
Date:
May 30, 2009
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 65
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to honoring Dr. James R. Reckner on his retirement from Texas Tech University.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 85
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to declaring March 10, 2009, as Matagorda County Day at the State Capitol.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 94
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to proclaiming April 2009 as Jazz Appreciation Month in Texas.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 97
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to welcoming German exchange student Carolin Bosche on the occasion of her visit to the State Capitol on March 16 and 17, 2009.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 141
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating Stacie George of Lubbock on earning a 2009 Women of Excellence Award from the YWCA of Lubbock.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 142
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating Cathy Pope of Lubbock on earning a 2009 Women of Excellence Award from the YWCA of Lubbock.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 143
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating Jennifer McGrew of Lubbock on earning a 2009 Women of Excellence Award from the YWCA of Lubbock.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 144
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to Congratulating Mitzi Jo Hopper Ziegner of Lubbock on earning a 2009 Women of Excellence Award from the YWCA of Lubbock.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 145
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating Christina Esperat of Lubbock on earning a 2009 Women of Excellence Award from the YWCA of Lubbock.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 146
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating Sally Kipyego of Lubbock on earning a 2009 Women of Excellence Award from the YWCA of Lubbock.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 147
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating Melinda Corwin of Lubbock on earning a 2009 Women of Excellence Award from the YWCA of Lubbock.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 165
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to in memory of Gratie Mae Potts of Clarksville.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 167
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to in memory of Robert Brownfield of Paris, Texas.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
81st Texas Legislature, House Concurrent Resolution, House Bill 169
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to in memory of Patsy Bell Rosson of Paris, Texas.
Date:
May 30, 2009
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History