796 Matching Results

Results open in a new window/tab. Unexpected Results? Search the Catalog Instead.

T-R Cycle Characterization and Imaging: Advanced Diagnostic Methodology for Petroleum Reservoir and Trap Detection and Delineation (open access)

T-R Cycle Characterization and Imaging: Advanced Diagnostic Methodology for Petroleum Reservoir and Trap Detection and Delineation

Characterization of stratigraphic sequences (T-R cycles or sequences) included outcrop studies, well log analysis and seismic reflection interpretation. These studies were performed by researchers at the University of Alabama, Wichita State University and McGill University. The outcrop, well log and seismic characterization studies were used to develop a depositional sequence model, a T-R cycle (sequence) model, and a sequence stratigraphy predictive model. The sequence stratigraphy predictive model developed in this study is based primarily on the modified T-R cycle (sequence) model. The T-R cycle (sequence) model using transgressive and regressive systems tracts and aggrading, backstepping, and infilling intervals or sections was found to be the most appropriate sequence stratigraphy model for the strata in the onshore interior salt basins of the Gulf of Mexico to improve petroleum stratigraphic trap and specific reservoir facies imaging, detection and delineation. The known petroleum reservoirs of the Mississippi Interior and North Louisiana Salt Basins were classified using T-R cycle (sequence) terminology. The transgressive backstepping reservoirs have been the most productive of oil, and the transgressive backstepping and regressive infilling reservoirs have been the most productive of gas. Exploration strategies were formulated using the sequence stratigraphy predictive model and the classification of the known petroleum …
Date: August 30, 2006
Creator: Mancini, Ernest A.
Object Type: Report
System: The UNT Digital Library
Seismic Evaluation of Hydrocarbon Saturation in Deep-Water Reservoirs (open access)

Seismic Evaluation of Hydrocarbon Saturation in Deep-Water Reservoirs

During this last period of the ''Seismic Evaluation of Hydrocarbon Saturation in Deep-Water Reservoirs'' project (Grant/Cooperative Agreement DE-FC26-02NT15342), we finalized integration of rock physics, well log analysis, seismic processing, and forward modeling techniques. Most of the last quarter was spent combining the results from the principal investigators and come to some final conclusions about the project. Also much of the effort was directed towards technology transfer through the Direct Hydrocarbon Indicators mini-symposium at UH and through publications. As a result we have: (1) Tested a new method to directly invert reservoir properties, water saturation, Sw, and porosity from seismic AVO attributes; (2) Constrained the seismic response based on fluid and rock property correlations; (3) Reprocessed seismic data from Ursa field; (4) Compared thin layer property distributions and averaging on AVO response; (5) Related pressures and sorting effects on porosity and their influence on DHI's; (6) Examined and compared gas saturation effects for deep and shallow reservoirs; (7) Performed forward modeling using geobodies from deepwater outcrops; (8) Documented velocities for deepwater sediments; (9) Continued incorporating outcrop descriptive models in seismic forward models; (10) Held an open DHI symposium to present the final results of the project; (11) Relations between Sw, porosity, …
Date: April 30, 2006
Creator: Batzle, Michael
Object Type: Report
System: The UNT Digital Library
Multicomponent Seismic Analysis and Calibration to Improve Recovery from Algal Mounds: Application to the Roadrunner/Towaoc area of the Paradox Basin, UTE Mountain UTE Reservation, Colorado (open access)

Multicomponent Seismic Analysis and Calibration to Improve Recovery from Algal Mounds: Application to the Roadrunner/Towaoc area of the Paradox Basin, UTE Mountain UTE Reservation, Colorado

The goals of this project were: (1) To enhance recovery of oil contained within algal mounds on the Ute Mountain Ute tribal lands. (2) To promote the use of advanced technology and expand the technical capability of the Native American Oil production corporations by direct assistance in the current project and dissemination of technology to other Tribes. (3) To develop an understanding of multicomponent seismic data as it relates to the variations in permeability and porosity of algal mounds, as well as lateral facies variations, for use in both reservoir development and exploration. (4) To identify any undiscovered algal mounds for field-extension within the area of seismic coverage. (5) To evaluate the potential for applying CO{sub 2} floods, steam floods, water floods or other secondary or tertiary recovery processes to increase production. The technical work scope was carried out by: (1) Acquiring multicomponent seismic data over the project area; (2) Processing and reprocessing the multicomponent data to extract as much geological and engineering data as possible within the budget and time-frame of the project; (3) Preparing maps and data volumes of geological and engineering data based on the multicomponent seismic and well data; (4) Selecting drilling targets if warranted by …
Date: September 30, 2007
Creator: Hachey, Joe
Object Type: Report
System: The UNT Digital Library
Seismic Evaluation of Hydrocarbon Saturation in Deep-Water Reservoirs (open access)

Seismic Evaluation of Hydrocarbon Saturation in Deep-Water Reservoirs

During this last quarter of the ''Seismic Evaluation of Hydrocarbon Saturation in Deep-Water Reservoirs'' project (Grant/Cooperative Agreement DE-FC26-02NT15342), our efforts have become focused on technology transfer. To this end, we completing our theoretical developments, generating recommended processing flows, and perfecting our rock and fluid properties interpretation techniques. Some minor additional data analysis and modeling will complete our case studies. During this quarter we have: Presented findings for the year at the DHI/FLUIDS meeting at UH in Houston; Presented and published eight papers to promote technology transfer; Shown how Rock and fluid properties are systematic and can be predicted; Shown Correct values must be used to properly calibrate deep-water seismic data; Quantified and examined the influence of deep water geometries in outcrop; Compared and evaluated hydrocarbon indicators for fluid sensitivity; Identified and documented inappropriate processing procedures; Developed inversion techniques to better distinguish hydrocarbons; Developed new processing work flows for frequency-dependent anomalies; and Evaluated and applied the effects of attenuation as an indicator. We have demonstrated that with careful calibration, direct hydrocarbon indicators can better distinguish between uneconomic ''Fizz'' gas and economic hydrocarbon reservoirs. Some of this progress comes from better characterization of fluid and rock properties. Other aspects include alternative techniques …
Date: January 30, 2006
Creator: Batzle, Michael; Han, D-h; Gibson, R. & James, Huw
Object Type: Report
System: The UNT Digital Library
Shallow 3-D vertical seismic profiling around a contaminant withdrawal well on the Lawrence Livermore National Laboratory Site (open access)

Shallow 3-D vertical seismic profiling around a contaminant withdrawal well on the Lawrence Livermore National Laboratory Site

One of the major problems associated with ground water contaminant remediation is well placement. Optimal-placement of wells requires an accurate knowledge of geologic structure and stratigraphy in the near surface sediments and rock (0 to 100 m). Without the development of remote imaging provided by geophysical techniques, the required spacing between treatment wells may be less than 2 m in order to be confident that all contaminant reservoirs had been remediated. One method for characterizing geologic structure and stratigraphy in the near surface is vertical seismic profiling (VSP), a technique often used on deep exploration wells to calibrate surface seismic reflection data. For near-surface applications, VSP data can be acquired efficiently using an array of hydrophones lowered into a fluid-filled borehole (Milligan et al, 1997). In this paper we discuss the acquisition and processing of a 3-D VSP collected at a shallow remediation site located on the grounds of the Lawrence Livermore National Laboratory (LLNL) near Livermore, California. The site was used by the United States Navy as an air training base. At this time, initial releases of hazardous materials to the environment occurred in the form of solvents [volatile organic compounds (VOCs)] that were used for the cleaning of …
Date: January 30, 1997
Creator: Rector, J.; Bainer, R.; Milligan, P. & Tong, C.
Object Type: Report
System: The UNT Digital Library
Advanced Materials for Mercury 50 Gas Turbine Combustion System (open access)

Advanced Materials for Mercury 50 Gas Turbine Combustion System

Solar Turbines Incorporated (Solar), under cooperative agreement number DE-FC26-0CH11049, has conducted development activities to improve the durability of the Mercury 50 combustion system to 30,000 hours life and reduced life cycle costs. This project is part of Advanced Materials in the Advanced Industrial Gas Turbines program in DOE's Office of Distributed Energy. The targeted development engine was the Mercury{trademark} 50 gas turbine, which was developed by Solar under the DOE Advanced Turbine Systems program (DOE contract number DE-FC21-95MC31173). As a generator set, the Mercury 50 is used for distributed power and combined heat and power generation and is designed to achieve 38.5% electrical efficiency, reduced cost of electricity, and single digit emissions. The original program goal was 20,000 hours life, however, this goal was increased to be consistent with Solar's standard 30,000 hour time before overhaul for production engines. Through changes to the combustor design to incorporate effusion cooling in the Generation 3 Mercury 50 engine, which resulted in a drop in the combustor wall temperature, the current standard thermal barrier coated liner was predicted to have 18,000 hours life. With the addition of the advanced materials technology being evaluated under this program, the combustor life is predicted to be …
Date: September 30, 2008
Creator: Price, Jeffrey
Object Type: Report
System: The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 85, No. 349, Ed. 1 Monday, October 30, 2000 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 85, No. 349, Ed. 1 Monday, October 30, 2000

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: October 30, 2000
Creator: Quinnelly, Lorrie J.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 87, No. 196, Ed. 1 Tuesday, April 30, 2002 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 87, No. 196, Ed. 1 Tuesday, April 30, 2002

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: April 30, 2002
Creator: Broaddus, Matthew B.
Object Type: Newspaper
System: The Gateway to Oklahoma History
University Press (Beaumont, Tex.), Vol. 80, No. 28, Ed. 1 Friday, January 30, 2004 (open access)

University Press (Beaumont, Tex.), Vol. 80, No. 28, Ed. 1 Friday, January 30, 2004

Semiweekly newspaper from Lamar University in Beaumont, Texas that includes local, national, and campus news along with advertising.
Date: January 30, 2004
Creator: Gurski, Patrick
Object Type: Newspaper
System: The Portal to Texas History
Astrophysical and Astrochemical Insights into the Origin of Life (open access)

Astrophysical and Astrochemical Insights into the Origin of Life

Nucleosynthesis of heavy elements such as carbon in stars allowed the formation of organic molecules in space, which appear to be widespread in our Galaxy. The physical and chemical conditions - including density, temperature, ultraviolet radiation and energetic particles - determine reaction pathways and the complexity of organic molecules in different space environments. Dense interstellar clouds are the birth sites of stars of all masses and their planetary systems. During the protostellar collapse, gaseous and solid interstellar organic molecules are integrated into protostellar disks from which planets and smaller solar system bodies form. After the formation of the planets in our own solar system, 4.6 billion years ago, all of them, including the Earth, were subjected to frequent impacts for several hundred million years. First indications for life on Earth are dated 3.8-3.5 billion years ago. That life arose very shortly after this heavy bombardment phase raises many questions. A prebiotic non-reducing atmosphere predicts that building blocks of macromolecules--such as amino acids, sugars, purines and pyrimidines were not formed in abundance. A part of the prebiotic organic content of the early Earth could have been delivered by asteroids, comets and smaller fragments such as meteorites and interplanetary dust particles (IDPs). …
Date: April 30, 2002
Creator: Ehrenfreund, P; Becker, L; Blank, J; Brucato, J; Colangeli, L; Derenne, S et al.
Object Type: Report
System: The UNT Digital Library
The Llano News (Llano, Tex.), Vol. 112, No. 25, Ed. 1 Thursday, March 30, 2000 (open access)

The Llano News (Llano, Tex.), Vol. 112, No. 25, Ed. 1 Thursday, March 30, 2000

Weekly newspaper from Llano, Texas that includes local, state, and national news along with advertising.
Date: March 30, 2000
Creator: Stephenson, Jimmy
Object Type: Newspaper
System: The Portal to Texas History
The Wynnewood Gazette (Wynnewood, Okla.), Vol. 105, No. 22, Ed. 1 Thursday, August 30, 2007 (open access)

The Wynnewood Gazette (Wynnewood, Okla.), Vol. 105, No. 22, Ed. 1 Thursday, August 30, 2007

Weekly newspaper from Wynnewood, Oklahoma that includes local, state, and national news along with advertising.
Date: August 30, 2007
Creator: unknown
Object Type: Newspaper
System: The Gateway to Oklahoma History
Sanger Courier (Sanger, Tex.), Vol. 101, No. 23, Ed. 1 Thursday, March 30, 2000 (open access)

Sanger Courier (Sanger, Tex.), Vol. 101, No. 23, Ed. 1 Thursday, March 30, 2000

Weekly newspaper from Sanger, Texas that includes local, state, and national news along with extensive advertising.
Date: March 30, 2000
Creator: Hardy, Lisa
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 77, No. 234, Ed. 1 Friday, July 30, 1999 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 77, No. 234, Ed. 1 Friday, July 30, 1999

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: July 30, 1999
Creator: Dobbs, Gary
Object Type: Newspaper
System: The Portal to Texas History
Acceptability of risk from radiation: Application to human space flight (open access)

Acceptability of risk from radiation: Application to human space flight

This one of NASA`s sponsored activities of the NCRP. In 1983, NASA asked NCRP to examine radiation risks in space and to make recommendations about career radiation limits for astronauts (with cancer considered as the principal risk). In conjunction with that effort, NCRP was asked to convene this symposium; objective is to examine the technical, strategic, and philosophical issues pertaining to acceptable risk and radiation in space. Nine papers are included together with panel discussions and a summary. Selected papers are indexed separately for inclusion in the Energy Science and Technology Database.
Date: April 30, 1997
Creator: unknown
Object Type: Article
System: The UNT Digital Library
De Leon Free Press (De Leon, Tex.), Vol. 119, No. 4, Ed. 1 Thursday, July 30, 2009 (open access)

De Leon Free Press (De Leon, Tex.), Vol. 119, No. 4, Ed. 1 Thursday, July 30, 2009

Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date: July 30, 2009
Creator: Kestner, Laura
Object Type: Newspaper
System: The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 108, No. 130, Ed. 1 Wednesday, August 30, 2006 (open access)

Altus Times (Altus, Okla.), Vol. 108, No. 130, Ed. 1 Wednesday, August 30, 2006

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: August 30, 2006
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 111, No. 320, Ed. 1 Wednesday, September 30, 2009 (open access)

The Altus Times (Altus, Okla.), Vol. 111, No. 320, Ed. 1 Wednesday, September 30, 2009

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: September 30, 2009
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
NASA: Agency Faces Challenges Defining Scope and Costs of Space Shuttle Transition and Retirement (open access)

NASA: Agency Faces Challenges Defining Scope and Costs of Space Shuttle Transition and Retirement

A letter report issued by the Government Accountability Office with an abstract that begins "The Space Shuttle Program (SSP) is scheduled to retire in 2010, and the transition and retirement of its facilities and assets will be an immense undertaking involving approximately 654 facilities worth an estimated $5.7 billion and equipment with an estimated value of more than $12 billion. NASA plans to retire the SSP in 2010 to make resources available for the Constellation program, which is producing the next generation of space vehicles by 2015. Many of the SSP's resources are expected to transition to Constellation while others will be dispositioned or preserved for their historic value. The Consolidated Appropriations Act, 2008 directed GAO to assess NASA's plans and progress in transitioning and retiring the SSP's facilities and equipment. More specifically, GAO examined 1) the challenges NASA faces in defining the scope and costs of transition and retirement activities, and 2) whether the cost of these efforts is transparent in NASA's budget requests. To address these objectives, GAO analyzed SSP plans, budget guidance, and other documents, and interviewed relevant government officials and contractors."
Date: September 30, 2008
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
NASA: Better Mechanisms Needed for Sharing Lessons Learned (open access)

NASA: Better Mechanisms Needed for Sharing Lessons Learned

A chapter report issued by the General Accounting Office with an abstract that begins "The National Aeronautics and Space Administration (NASA) uses several mechanisms to capture and disseminate lessons learned. NASA has established an agency-wide Lessons Learned Information System that managers are required to review on an ongoing basis. NASA uses training, program reviews, and periodic revisions to agency policies and guidelines to communicate lessons learned. Several NASA centers and key programs also maintain lessons learned systems that are geared toward their own staff. To improve the way it captures and shares information, NASA has developed a strategic plan, assembled a management team to coordinate knowledge management and activities at NASA's centers, and begun several information technology pilot projects. Despite the processes and procedures in place to capture and share lessons learned, there is no assurance that lessons are being applied toward future missions success. Although some lessons learning does take place, lessons are not routinely identified, collected, or shared by programs and project managers. Furthermore, there are challenges or cultural barriers to the sharing of lessons learned, such as the lack of time to capture or submit lessons and a perception of intolerance for mistakes. Although NASA's current efforts …
Date: January 30, 2002
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Extending NASA's Exemption from the Iran, North Korea, and Syria Nonproliferation Act (open access)

Extending NASA's Exemption from the Iran, North Korea, and Syria Nonproliferation Act

This report discusses NASA's exemptions from the Iran Nonproliferation Act of 2000 (INA) as it relates to the International Space Station (ISS). It provides background information on the ISS and nonproliferation as well as INA origins and relation to the ISS. It also discusses amendments to the INA, current plans for the ISS, and related issues.
Date: July 30, 2008
Creator: Behrens, Carl & Nikitin, Mary Beth
Object Type: Report
System: The UNT Digital Library
The Cotulla Record (Cotulla, Tex.), Vol. 44, No. 49, Ed. 1 Friday, May 30, 1941 (open access)

The Cotulla Record (Cotulla, Tex.), Vol. 44, No. 49, Ed. 1 Friday, May 30, 1941

Weekly newspaper from Cotulla, Texas that includes local, state, and national news along with advertising.
Date: May 30, 1941
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Port Aransas South Jetty (Port Aransas, Tex.), Vol. 8, No. 24, Ed. 1 Thursday, November 30, 1978 (open access)

Port Aransas South Jetty (Port Aransas, Tex.), Vol. 8, No. 24, Ed. 1 Thursday, November 30, 1978

Weekly newspaper from Port Aransas, Texas on Mustang Island that includes local, state and national news along with advertising.
Date: November 30, 1978
Creator: Frishman, Steve
Object Type: Newspaper
System: The Portal to Texas History
Property Management: NASA's Goal of Increasing Equipment Reutilization May Fall Short without Further Efforts (open access)

Property Management: NASA's Goal of Increasing Equipment Reutilization May Fall Short without Further Efforts

A letter report issued by the Government Accountability Office with an abstract that begins "In 2010, the planned retirement of the space shuttle will require the National Aeronautics and Space Administration (NASA) to make disposal and reutilization decisions regarding over 1.2 million types of equipment. To facilitate these and other equipment management decisions, NASA recently invested $29 million in a new program: the Plant, Property, and Equipment (PP&E) Module--a component of NASA's Integrated Enterprise Management Program. GAO was asked to assess the effectiveness of NASA's processes, systems, and controls for managing its PP&E. This report addresses whether NASA (1) effectively designed controls over steps NASA identified as key to its controlled equipment reutilization process, including sending equipment to disposal, and (2) implemented policies, controls, and processes to enhance equipment reutilization. To answer these questions, GAO reviewed NASA equipment reutilization policy and conducted on-site visits at five NASA centers."
Date: January 30, 2009
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library