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3-D Reservoir and Stochastic Fracture Network Modeling for Enhanced Oil Recovery, Circle Ridge Phosphoria/Tensleep Reservoir, Wind River Reservation, Arapaho and Shoshone Tribes, Wyoming
This report describes the results made in fulfillment of contract DE-FG26-00BC15190, ''3-D Reservoir and Stochastic Fracture Network Modeling for Enhanced Oil Recovery, Circle Ridge Phosphoria/Tensleep Reservoir, Wind River Reservation, Arapaho and Shoshone Tribes, Wyoming''. The goal of this project is to improve the recovery of oil from the Tensleep and Phosphoria Formations in Circle Ridge Oilfield, located on the Wind River Reservation in Wyoming, through an innovative integration of matrix characterization, structural reconstruction, and the characterization of the fracturing in the reservoir through the use of discrete fracture network models. Fields in which natural fractures dominate reservoir permeability, such as the Circle Ridge Field, often experience sub-optimal recovery when recovery processes are designed and implemented that do not take advantage of the fracture systems. For example, a conventional waterflood in a main structural block of the Field was implemented and later suspended due to unattractive results. It is estimated that somewhere less than 20% of the OOIP in the Circle Ridge Field have been recovered after more than 50 years' production. Marathon Oil Company identified the Circle Ridge Field as an attractive candidate for several advanced IOR processes that explicitly take advantage of the natural fracture system. These processes require …
Date:
November 18, 2002
Creator:
La Pointe, Paul; Hermanson, Jan; Parney, Robert; Eiben, Thorsten; Dunleavy, Mike; Steele, Ken et al.
Object Type:
Report
System:
The UNT Digital Library
[24-Hour Film Feast, Movie Reviews, The Color Purple, Lean On Me, Boomerang, Which Way Is Up? Part 2 of 4]
Video recording from The Black Academy of Arts and Letters recorded during their 24-Hour Film Feast, Movie Reviews, The Color Purple, Lean On Me, Boomerang, Which Way Is Up? event in 2002. This video features a dialogue about the films watched during the event with film actors live on stage at Clarence Muse Café Theatre. This video is Part 2 of 4 of the event.
Date:
2002-10-18/2002-10-19
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
[24-Hour Film Feast, Movie Reviews, The Color Purple, Lean On Me, Boomerang, Which Way Is Up? Part 3 of 4]
Video recording from The Black Academy of Arts and Letters recorded during their 24-Hour Film Feast, Movie Reviews, The Color Purple, Lean On Me, Boomerang, Which Way Is Up? event in 2002. This video features a dialogue about the films watched during the event with film actors live on stage at Clarence Muse Café Theatre. This video is Part 3 of 4 of the event.
Date:
2002-10-18/2002-10-19
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
[24-Hour Film Feast, The Color Purple, Lean On Me, Boomerang, Which Way Is Up? Part 4 of 4]
Video recording from The Black Academy of Arts and Letters recorded during their 24-Hour Film Feast, The Color Purple, Lean On Me, Boomerang, Which Way Is Up? event in 2002. This video features a dialogue about the films watched during the event with film actors live on stage at Clarence Muse Café Theatre. This video is Part 2 of 4 of the event.
Date:
2002-10-18/2002-10-19
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
[24-Hour Film Feat featuring four African American female film stars, tape 1 of 4]
Video recording from The Black Academy of Arts and Letters recorded during 24-Hour Film Feast featuring four African American female film stars over the weekend of October 18-19th, 2002. The footage features movie reviews and dialogues with the actresses on films "The Color Purple", "Lean On Me", "Boomerang", and "Which Way Is Up?".
Date:
October 18, 2002
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
100-Picometer Interferometry for EUVL
Future extreme ultraviolet lithography (EWL) steppers will, in all likelihood, have six-mirror projection cameras. To operate at the diffraction limit over an acceptable depth of focus each aspheric mirror will have to be fabricated with an absolute figure accuracy approaching 100 pm rms. We are currently developing visible light interferometry to meet this need based on modifications of our present phase shifting diffraction interferometry (PSDI) methodology where we achieved an absolute accuracy of 250pm. The basic PSDI approach has been further simplified, using lensless imaging based on computational diffractive back-propagation, to eliminate auxiliary optics that typically limit measurement accuracy. Small remaining error sources, related to geometric positioning, CCD camera pixel spacing and laser wavelength, have been modeled and measured. Using these results we have estimated the total system error for measuring off-axis aspheric EUVL mirrors with this new approach to interferometry.
Date:
March 18, 2002
Creator:
Sommargren, G. E.; Phillion, D. W.; Johnson, M. A.; Nguyen, N. O.; Barty, A.; Snell, F. J. et al.
Object Type:
Article
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 31, No. 13, Ed. 1 Friday, January 18, 2002
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
January 18, 2002
Creator:
Baldwin, Alisha
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
2002 Gordon Research Conference on Molecular Evolution
Emphasis was placed on current unpublished research and discussion of the future target areas in this field.
Date:
January 18, 2002
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
2002 Review of Neutron and Non Neutron Nuclear Data
Review articles are in preparation for the 2003 edition of the CRC's Handbook of Chemistry and Physics dealing with both non-neutron and neutron nuclear data. Highlights include: withdrawal of the claim for discovery of element 118; new measurements of isotopic abundances have led to changes for many elements; a new set of recommended standards for calibration of {gamma}-ray energies have been published for many nuclides; new half-life measurements reported for very short lived isotopes, many long-lived nuclides and {beta}{beta} decay measurements for quasi-stable nuclides; a new reassessment of spontaneous fission (sf) half-lives for ground state nuclides, distinguishing half-lives from sf decay and cluster decay half-lives and the new cluster-fission decay; charged particle cross sections, (n,p) and (n,{alpha}) measurements for thermal neutrons incident on light nuclides; new thermal (n,{gamma}) cross sections and neutron resonance integrals measured. Details are presented.
Date:
August 18, 2002
Creator:
Holden, N. E.
Object Type:
Article
System:
The UNT Digital Library
Acoustical Imaging and Mechanical Properties of Soft Rock and Marine Sediments Progress Report: April-June 2002
During the sixth quarter of this research project the research team developed a method and the experimental procedures for acquiring the data needed for ultrasonic tomography of rock core samples under triaxial stress conditions as outlined in Task 10. Traditional triaxial compression experiments, where compressional and shear wave velocities are measured, provide little or no information about the internal spatial distribution of mechanical damage within the sample. The velocities measured between platen-to-platen or sensor-to-sensor reflects an averaging of all the velocities occurring along that particular raypath across the boundaries of the rock. The research team is attempting to develop and refine a laboratory equivalent of seismic tomography for use on rock samples deformed under triaxial stress conditions. Seismic tomography, utilized for example in crosswell tomography, allows an imaging of the velocities within a discrete zone within the rock. Ultrasonic or acoustic tomography is essentially the extension of that field technology applied to rock samples deforming in the laboratory at high pressures. This report outlines the technical steps and procedures for developing this technology for use on weak, soft chalk samples. Laboratory tests indicate that the chalk samples exhibit major changes in compressional and shear wave velocities during compaction. Since chalk …
Date:
November 18, 2002
Creator:
Scott, Thurman E., Jr.; Abousleiman, Younane & Zaman, Musharraf
Object Type:
Report
System:
The UNT Digital Library
Acoustical Imaging and Mechanical Properties of Soft Rock and Marine Sediments Progress Report: July-September 2002
During the seven quarter of the project the research team analyzed some of the acoustic velocity data and rock deformation data. The goal is to create a series of ''deformation-velocity maps'' which can outline the types of rock deformational mechanisms which can occur at high pressures and then associate those with specific compressional or shear wave velocity signatures. During this quarter, we began to analyze both the acoustical and deformational properties of the various rock types. Some of the preliminary velocity data from the Danian chalk will be presented in this report. This rock type was selected for the initial efforts as it will be used in the tomographic imaging study outlined in Task 10. This is one of the more important rock types in the study as the Danian chalk is thought to represent an excellent analog to the Ekofisk chalk that has caused so many problems in the North Sea. Some of the preliminary acoustic velocity data obtained during this phase of the project indicates that during pore collapse and compaction of this chalk, the acoustic velocities can change by as much as 200 m/s. Theoretically, this significant velocity change should be detectable during repeated successive 3-D seismic …
Date:
November 18, 2002
Creator:
Scott, Thurman E., Jr.; Abousleiman, Younane & Zaman, Musharraf
Object Type:
Report
System:
The UNT Digital Library
Acquisition Workforce: Status of Agency Efforts to Address Future Needs
A letter report issued by the General Accounting Office with an abstract that begins "The federal government is dramatically changing the way it purchases goods and services--by relying more on judgment and initiative versus rigid rules to make purchasing decisions. At the same time, agencies are dealing with reductions in the civilian acquisition workforce. GAO was asked to determine what efforts federal civilian agencies are making to address their future acquisition workforce needs."
Date:
December 18, 2002
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Active Climate Stabilization: Practical Physics-Based Approaches to Prevention of Climate Change
We offer a case for active technical management of the radiative forcing of the temperatures of the Earth's fluid envelopes, rather than administrative management of atmospheric greenhouse gas inputs, in order to stabilize both the global- and time-averaged climate and its mesoscale features. We suggest that active management of radiative forcing entails negligible--indeed, likely strongly negative--economic costs and environmental impacts, and thus best complies with the pertinent mandate of the UN Framework Convention on Climate Change. We propose that such approaches be swiftly evaluated in sub-scale in the course of an intensive international program.
Date:
April 18, 2002
Creator:
Teller, E.; Hyde, T. & Wood, L.
Object Type:
Article
System:
The UNT Digital Library
Advances Toward Inner-Shell Photo-Ionization X-Ray Lasing at 45 (Angstrom)
The inner-shell photo-ionization (ISPI) scheme requires photon energies at least high enough to photo-ionize the K-shell. {approx}286 eV, in the case of carbon. As a consequence of the higher cross-section, the inner-shell are selectively knocked out, leaving a hole state 1s2s{sup 2}2p{sup 2} in the singly charged carbon ion. This generates a population inversion to the radiatively connected state 1s{sup 2}2s{sup 2}2p in C+, leading to gain on the 1s-2p transition at 45 {angstrom}. The resonant character of the lasing transition in the single ionization state intrinsically allows much higher quantum efficiency compared to other schemes. Competing processes that deplete the population inversion include auto-ionization, Auger decay, and in particular collisional ionization of the outer-shell electrons by electrons generated during photo-ionization. These competing processes rapidly quench the gain. Consequently, the pump method must be capable of populating the inversion at a rate faster than the competing processes. This can be achieved by an ultra-fast, high intensity laser that is able to generate an ultra-fast, bright x-ray source. With current advances in the development of high-power, ultra-short pulse lasers it is possible to realize fast x-ray sources based that can deliver powerful pulses of light in the multiple hundred terawatt regime …
Date:
July 18, 2002
Creator:
Moon, S. J.; Weber, F. A.; Celliers, P. M. & Eder, D. C.
Object Type:
Article
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 126, No. 46, Ed. 1 Thursday, April 18, 2002
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
April 18, 2002
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 127, No. 7, Ed. 1 Thursday, July 18, 2002
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
July 18, 2002
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
Alive in the Mystery: Finding a God-Centered Life - Knowing God
Lecture given Monday, February 18, 2002, 2:00 PM at Abilene Christian University: "The point of spirituality is relationship with God. Knowing God relationally requires that we listen for His word and live within it. Join us as we search together for a God-oriented life."
Date:
February 18, 2002
Creator:
Ganus, Debbie
Object Type:
Sound
System:
The Portal to Texas History
All Things By Prayer - By Prayer, All Things
Lecture given Monday, February 18, 2002, 9:45 AM at Abilene Christian University: "In the 1700s it was A.H. Franke. In the 1800s it was George Muller. Who will it be in our day? Who will call out to God for daily demonstrations of His eagerness to hear and answer prayer? Will it be you? God has been faithful to hear and answer our prayers for provisions and people. Come. Hear. Believe."
Date:
February 18, 2002
Creator:
Meeks, Steve
Object Type:
Sound
System:
The Portal to Texas History
Alternative implementations of the Monte Carlo power method.
We compare nominal efficiencies, i.e. variances in power shapes for equal running time, of different versions of the Monte Carlo eigenvalue computation, as applied to criticality safety analysis calculations. The two main methods considered here are ''conventional'' Monte Carlo and the superhistory method, and both are used in criticality safety codes. Within each of these major methods, different variants are available for the main steps of the basic Monte Carlo algorithm. Thus, for example, different treatments of the fission process may vary in the extent to which they follow, in analog fashion, the details of real-world fission, or may vary in details of the methods by which they choose next-generation source sites. In general the same options are available in both the superhistory method and conventional Monte Carlo, but there seems not to have been much examination of the special properties of the two major methods and their minor variants. We find, first, that the superhistory method is just as efficient as conventional Monte Carlo and, secondly, that use of different variants of the basic algorithms may, in special cases, have a surprisingly large effect on Monte Carlo computational efficiency.
Date:
March 18, 2002
Creator:
Blomquist, R.N. & Gelbard, E.M.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 103, No. 276, Ed. 1 Friday, January 18, 2002
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 18, 2002
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 103, No. 302, Ed. 1 Monday, February 18, 2002
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 18, 2002
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 104, No. 3, Ed. 1 Monday, March 18, 2002
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 18, 2002
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 104, No. 29, Ed. 1 Thursday, April 18, 2002
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 18, 2002
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 104, No. 80, Ed. 1 Tuesday, June 18, 2002
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 18, 2002
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History