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National Geoscience Data Repository System, Phase III: Implementation and Operation of the Repository (open access)

National Geoscience Data Repository System, Phase III: Implementation and Operation of the Repository

The NGDRS steering committee met at Unocal's offices on October 1, 1998 in Sugar Land, Texas to review and discuss issues of data transfer and the continued development of the Stapleton prospect for establishment of a national core repository. Company representatives reaffirmed their commitment to donate geoscience data to the NGDRS once appropriate facilities are available.
Date: November 9, 1999
Creator: American Geological Institute
Object Type: Report
System: The UNT Digital Library
Hardware and Software Developments for the Accurate Time-Linked Data Acquisition System (open access)

Hardware and Software Developments for the Accurate Time-Linked Data Acquisition System

Wind-energy researchers at Sandia National Laboratories have developed a new, light-weight, modular data acquisition system capable of acquiring long-term, continuous, multi-channel time-series data from operating wind-turbines. New hardware features have been added to this system to make it more flexible and permit programming via telemetry. User-friendly Windows-based software has been developed for programming the hardware and acquiring, storing, analyzing, and archiving the data. This paper briefly reviews the major components of the system, summarizes the recent hardware enhancements and operating experiences, and discusses the features and capabilities of the software programs that have been developed.
Date: November 9, 1999
Creator: BERG,DALE E.; RUMSEY,MARK A. & ZAYAS,JOSE R.
Object Type: Article
System: The UNT Digital Library
Tailored Porous Materials (open access)

Tailored Porous Materials

Tailoring of porous materials involves not only chemical synthetic techniques for tailoring microscopic properties such as pore size, pore shape, pore connectivity, and pore surface reactivity, but also materials processing techniques for tailoring the meso- and the macroscopic properties of bulk materials in the form of fibers, thin films and monoliths. These issues are addressed in the context of five specific classes of porous materials: oxide molecular sieves, porous coordination solids, porous carbons, sol-gel derived oxides, and porous heteropolyanion salts. Reviews of these specific areas are preceded by a presentation of background material and review of current theoretical approaches to adsorption phenomena. A concluding section outlines current research needs and opportunities.
Date: November 9, 1999
Creator: Barton, Thomas J.; Bull, Lucy M.; Klemperer, Walter G.; Loy, Douglas A.; McEnaney, Brian; Misono, Makoto et al.
Object Type: Article
System: The UNT Digital Library
The Harper Herald (Harper, Tex.), Vol. 69, No. 141, Ed. 1 Tuesday, November 9, 1999 (open access)

The Harper Herald (Harper, Tex.), Vol. 69, No. 141, Ed. 1 Tuesday, November 9, 1999

Weekly newspaper from Harper, Texas that includes local, state, and national news along with advertising.
Date: November 9, 1999
Creator: Bishop, Karen
Object Type: Newspaper
System: The Portal to Texas History
Perry Daily Journal (Perry, Okla.), Vol. 106, No. 218, Ed. 1 Tuesday, November 9, 1999 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 106, No. 218, Ed. 1 Tuesday, November 9, 1999

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: November 9, 1999
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
Evaluation of Reservoir Wettability and its Effect on Oil Recovery (open access)

Evaluation of Reservoir Wettability and its Effect on Oil Recovery

This project has three main goals. The first is to achieve improved understanding of the surface and interfacial properties of crude oils and their interactions with mineral surfaces. The second goal is to apply the results of surface studies to improved predictions of oil production in laboratory experiments. Finally, we aim to use the results of this research to recommend ways to improve oil recovery by waterflooding. In order to achieve these goals, the mechanisms of wetting alteration must be explained. We propose a methodology for studying those mechanisms on mineral surfaces, then applying the results to prediction and observation of wetting alteration in porous media. Improved understanding of the underlying mechanisms will show when and how wettability in the reservoir can be altered and under what circumstances that alteration would be beneficial in terms of increased production of oil.
Date: November 9, 1999
Creator: Buckley, Jill S.
Object Type: Report
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, November 9, 1999 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, November 9, 1999

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: November 9, 1999
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 100, No. 199, Ed. 1 Tuesday, November 9, 1999 (open access)

Altus Times (Altus, Okla.), Vol. 100, No. 199, Ed. 1 Tuesday, November 9, 1999

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: November 9, 1999
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
LFSRs Do Not Provide Compression (open access)

LFSRs Do Not Provide Compression

We show that for general input sets linear feedback shift registers (LFSRS) do not provide compression comparable to current, standard algorithms, at least not on the current, standard input files. Rather, LFSRS provide performance on a par with simple, run-length encoding schemes. We exercised three different ways of using LFSRS on the Canterbury, Canterbury Oarge set, the Calgory Corpora, and on three, large graphics files of our own.
Date: November 9, 1999
Creator: Campbell, Philip L. & Pierson, Lyndon G.
Object Type: Article
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 78, No. 8, Ed. 1 Tuesday, November 9, 1999 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 78, No. 8, Ed. 1 Tuesday, November 9, 1999

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: November 9, 1999
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History
The Sealy News (Sealy, Tex.), Vol. 112, No. 91, Ed. 1 Tuesday, November 9, 1999 (open access)

The Sealy News (Sealy, Tex.), Vol. 112, No. 91, Ed. 1 Tuesday, November 9, 1999

Semiweekly newspaper from Sealy, Texas that includes local, state, and national news along with advertising.
Date: November 9, 1999
Creator: Chionsini, Brandi
Object Type: Newspaper
System: The Portal to Texas History
Increasing Waterflooding Reservoirs in the Wilmington Oil Field through Improved Reservoir Characterization and Reservoir Management (open access)

Increasing Waterflooding Reservoirs in the Wilmington Oil Field through Improved Reservoir Characterization and Reservoir Management

The objectives of this quarterly report are to summarize the work conducted under each task during the reporting period July - September 1998 and to report all technical data and findings as specified in the ''Federal Assistance Reporting Checklist''. The main objective of this project is the transfer of technologies, methodologies, and findings developed and applied in this project to other operators of Slope and Basin Clastic Reservoirs. This project will study methods to identify sands with high remaining oil saturation and to recomplete existing wells using advanced completion technology.
Date: November 9, 1999
Creator: Clarke, Don; Koerner, Roy; Moos, Dan; Nguyen, John; Phillips, Chris; Tagbor, Kwasi et al.
Object Type: Report
System: The UNT Digital Library
Feasibility of Optimizing Recovery & Reserves from a Mature & Geological Complex Multiple Turbidite Offshore Calif. Reservoir through the Drilling & Completion of a Trilateral Horizontal Well (open access)

Feasibility of Optimizing Recovery & Reserves from a Mature & Geological Complex Multiple Turbidite Offshore Calif. Reservoir through the Drilling & Completion of a Trilateral Horizontal Well

The main objective of this project is to devise an effective redevelopment strategy to combat producibility problems related to the Repetto turbidite sequences of the Carpinteria Field. The lack of adequate reservoir characterization, high-water cut production, and scaling problems have in the past contributed to the field's low productivity. To improve productivity and enhance recoverable reserves, the following specific goals are proposed: (1) Develop an integrated database of all existing data from work done by the former ownership group. (2) Expand reservoir drainage and reduce sand problems through horizontal well drilling and completion. (3) Operate and validate reservoirs' conceptual model by incorporating new data from the proposed trilateral well. (4) Transfer methodologies employed in geologic modeling and drilling multilateral wells to other operators with similar reservoirs.
Date: November 9, 1999
Creator: Coombs, Steven F.
Object Type: Report
System: The UNT Digital Library
Feasibility of Optimizing Recovery & Reserves from a Mature & Geological Complex Multiple Turbidite Offshore Calif. Reservoir through the Drilling & Completion of a Trilateral Horizontal Well (open access)

Feasibility of Optimizing Recovery & Reserves from a Mature & Geological Complex Multiple Turbidite Offshore Calif. Reservoir through the Drilling & Completion of a Trilateral Horizontal Well

The main objective of this project is to devise an effective redevelopment strategy to combat producibility problems related to the Repetto turbidite sequences of the Carpinteria Field. The lack of adequate reservoir characterization, high-water cut production, and scaling problems have in the past contributed to the field's low productivity. To improve productivity and enhance recoverable reserves, the following specific goals are proposed: (1) Develop an integrated database of all existing data from work done by the former ownership group. (2) Expand reservoir drainage and reduce sand problems through horizontal well drilling and completion. (3) Operate and validate reservoirs' conceptual model by incorporating new data from the proposed trilateral well. (4) Transfer methodologies employed in geologic modeling and drilling multilateral wells to other operators with similar reservoirs.
Date: November 9, 1999
Creator: Coombs, Steven F.
Object Type: Report
System: The UNT Digital Library
Design and Implementation of a CO2 Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells In a Shallow Shelf Carbonate Approaching Waterflood Depletion (open access)

Design and Implementation of a CO2 Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells In a Shallow Shelf Carbonate Approaching Waterflood Depletion

This project consist of two budget phases. Budget Phase I started in June 1994 and ended late June 1996. During this phase the Reservoir Analysis and Characterization Task and the Advanced Technology Definition Task were completed. Completion of these tasks enabled the project to be designed, and an Authority for Expenditure (AFE) for project implementation to be generated and submitted to the working interest owners for approval. Budget Phase II consists of the implementation and execution of the project in the field.
Date: November 9, 1999
Creator: Czirr, K. L.; Owen, R.; Robertson, C. R.; Harpole, K. J. & Durrett, E. G.
Object Type: Report
System: The UNT Digital Library
Humidity Dependence of Adhesion for Silane Coated Microcantilevers (open access)

Humidity Dependence of Adhesion for Silane Coated Microcantilevers

This study examines adhesion between silane-coated micromachined surfaces that are exposed to humid conditions. Our quantitative values for interfacial adhesion energies are determined from an in-situ optical measurement of deformations in partly-adhered cantilever beams. We coated micromachined cantilevers with either ODTS (C{sub 18}H{sub 37}SiCl{sub 3}) or FDTS (C{sub 8}F{sub 17}C{sub 2}H{sub 4}SiCl{sub 3}) with the objective of creating hydrophobic surfaces whose adhesion would be independent of humidity. In both cases, the adhesion energy is significantly lower than for uncoated, hydrophilic surfaces. For relative humidities (RH) less than 95% (ODTS) and 80% (FDTS) the adhesion energy was extremely low and constant. In fact, ODTS-coated beams exposed to saturated humidity conditions and long (48 hour) exposures showed only a factor of two increase in adhesion energy. Surprisingly, FDTS coated beams, which initially have a higher contact angle (115{degree}) with water than do ODTS coated beams (112{degree}), proved to be much more sensitive to humidity. The FDTS coated surfaces showed a factor of one hundred increase in adhesion energy after a seven hour exposure to 90% RH. Atomic force microscopy revealed agglomerated coating material after exposed to high RH, suggesting a redistribution of the monolayer film. This agglomeration was more prominent for FDTS …
Date: November 9, 1999
Creator: DE BOER,MAARTEN P.; MAYER,THOMAS M.; CARPICK,ROBERT W.; MICHALSKE,TERRY A.; SRINIVASAN,U. & MABOUDIAN,R.
Object Type: Article
System: The UNT Digital Library
Application of Advanced Reservoir Characterization, Simulation, and Production Optimization Strategies to Maximize Recovery in Slope and Basin Clastic Reservoirs, West Texas (Delaware Basin) (open access)

Application of Advanced Reservoir Characterization, Simulation, and Production Optimization Strategies to Maximize Recovery in Slope and Basin Clastic Reservoirs, West Texas (Delaware Basin)

The objective of this Class 3 project was demonstrate that detailed reservoir characterization of slope and basin clastic reservoirs in sandstones of the Delaware Mountain Group in the Delaware Basin of West Texas and New Mexico is a cost effective way to recover a higher percentage of the original oil in place through strategic placement of infill wells and geologically based field development. Project objectives are divided into two main phases. The original objectives of the reservoir-characterization phase of the project were (1) to provide a detailed understanding of the architecture and heterogeneity of two representative fields of the Delaware Mountain Group, Geraldine Ford and Ford West, which produce from the Bell Canyon and Cherry Canyon Formations, respectively, (2) to chose a demonstration area in one of the fields, and (3) to simulate a CO 2 flood in the demonstration area.
Date: November 9, 1999
Creator: Dutton, Shirley
Object Type: Report
System: The UNT Digital Library
Application of Advanced Reservoir Characterization, Simulation, and Production Optimization Strategies to Maximize Recovery in Slope and Basin Clastic Reservoirs, West Texas (Delaware Basin) (open access)

Application of Advanced Reservoir Characterization, Simulation, and Production Optimization Strategies to Maximize Recovery in Slope and Basin Clastic Reservoirs, West Texas (Delaware Basin)

The objective of this Class 3 project was demonstrate that detailed reservoir characterization of slope and basin clastic reservoirs in sandstones of the Delaware Mountain Group in the Delaware Basin of West Texas and New Mexico is a cost effective way to recover a higher percentage of the original oil in place through strategic placement of infill wells and geologically based field development. Project objectives are divided into two main phases. The original objectives of the reservoir-characterization phase of the project were (1) to provide a detailed understanding of the architecture and heterogeneity of two representative fields of the Delaware Mountain Group, Geraldine Ford and Ford West, which produce from the Bell Canyon and Cherry Canyon Formations, respectively, (2) to chose a demonstration area in one of the fields, and (3) to simulate a CO 2 flood in the demonstration area.
Date: November 9, 1999
Creator: Dutton, Shirley P.
Object Type: Report
System: The UNT Digital Library
Measurement and analysis of chatter in a compliant model of a drillstring equipped with a PDC bit (open access)

Measurement and analysis of chatter in a compliant model of a drillstring equipped with a PDC bit

Typical laboratory testing of Polycrystalline Diamond Compact (PDC) bits is performed on relatively rigid setups. Even in hard rock, PDC bits exhibit reasonable life using such testing schemes. Unfortunately, field experience indicates otherwise. In this paper, the authors show that introducing compliance in testing setups provides better simulation of actual field conditions. Using such a scheme, they show that chatter can be severe even in softer rock, such as sandstone, and very destructive to the cutters in hard rock, such as sierra white granite.
Date: November 9, 1999
Creator: Elsayed, M.A. & Raymond, D.W.
Object Type: Article
System: The UNT Digital Library
An Evaluation of Parallel Job Scheduling for ASCI Blue-Pacific (open access)

An Evaluation of Parallel Job Scheduling for ASCI Blue-Pacific

In this paper we analyze the behavior of a gang-scheduling strategy that we are developing for the ASCI Blue-Pacific machines. Using actual job logs for one of the ASCI machines we generate a statistical model of the current workload with hyper Erlang distributions. We then vary the parameters of those distributions to generate various workloads, representative of different operating points of the machine. Through simulation we obtain performance parameters for three different scheduling strategies: (i) first-come first-serve, (ii) gang-scheduling, and (iii) backfilling. Our results show that backfilling, can be very effective for the common operating points in the 60-70% utilization range. However, for higher utilization rates, time-sharing techniques such as gang-scheduling offer much better performance.
Date: November 9, 1999
Creator: Franke, H.; Jann, J.; Moreira, J.; Pattnaik, P. & Jette, M.
Object Type: Article
System: The UNT Digital Library
Pollution Prevention Through Recycling at the SNL/NM Classified Waste Landfill Project (open access)

Pollution Prevention Through Recycling at the SNL/NM Classified Waste Landfill Project

Typical Laboratory testing of Polycrystalline Diamond Compact (PDC) bits is performed on relatively rigid setups. Even in hard rock, PDC bits exhibit reasonable life using such testing schemes. Unfortunately, field experience indicates otherwise. In this paper, they show that introducing compliance in testing setups, provides better simulation of actual field conditions. Using such a scheme, they show that chatter can be severe even in softer rock, such as sandstone, and very destructive to the cutters in hard rock, such as sierra white granite.
Date: November 9, 1999
Creator: Galloway, Robert B.; Slavin, Paula Jane; Methvin, Rhonda Kay & Fritts, Joseph Edgar
Object Type: Article
System: The UNT Digital Library
Second and Third Quarters Hanford Seismic Report for Fiscal Year 1999 (open access)

Second and Third Quarters Hanford Seismic Report for Fiscal Year 1999

Hanford Seismic Monitoring provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network (HSN) for the U.S. Department of Energy and its contractors. Hanford Seismic Monitoring also locates and identifies sources of seismic activity and monitors changes in the historical pattern of seismic activity at the Hanford Site. The data are compiled, archived, and published for use by the Hanford Site for waste management Natural Phenomena Hazards assessments, and engineering design and construction. In addition, the seismic monitoring organization works with the Hanford Site Emergency Services Organization to provide assistance in the event of a significant earthquake on the Hanford Site. The HSN and the Eastern Washington Regional Network (EWRN) consist of 42 individual sensor sites and 15 radio relay sites maintained by the Hanford Seismic Monitoring staff. For the HSN, there were 270 triggers during the second quarter of fiscal year (FY) 1999 and 229 triggers during the third quarter on the primary recording system. During the second quarter, 22 seismic events were located; 11 were earthquakes in the Columbia River Basalt Group, 6 were earthquakes in the crystalline basement, and 5 were quarry blasts. Two earthquakes appear to be related to major …
Date: November 9, 1999
Creator: Hartshorn, D. C.; Reidel, S. P. & Rohay, A. C.
Object Type: Report
System: The UNT Digital Library
Rains County Leader (Emory, Tex.), Vol. 112, No. 22, Ed. 1 Tuesday, November 9, 1999 (open access)

Rains County Leader (Emory, Tex.), Vol. 112, No. 22, Ed. 1 Tuesday, November 9, 1999

Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date: November 9, 1999
Creator: Hill, Earl Clyde, Jr.
Object Type: Newspaper
System: The Portal to Texas History
What is a supermaterial? (open access)

What is a supermaterial?

On rare occasions, the coining of a new term brings new ideas to a field by virtue of a shift in viewpoint. A recent example is complexity, which collected together, from a core of deep results in mathematics and hydrodynamics, a clan of fields whose kinship had been revealed by the new term itself. More often such appellations merely follow fashionable trends. So it took courage on the part of the founders of SUPERMAT to promote their vision. Marcel Ausloos (Universite de Liege, Belgium) and Gilbert Vacquier (Universite de Marseille, France) have shown us a way to resonate as a new chord in materials science. As the first conference on supermaterials, SUPERMAT and its companion SMART 99 have begun to reveal new branches of research from the established pathways explored in superconductivity. At the conclusion of SUPERMAT in Giens, France, the participants were as energized by the exciting science that had been covered during the week as they were impressed by the French food, wine, scenery and hospitality. If the definition of a supermaterial is not obvious now-after the conference-it was certainly not obvious before it. Nevertheless, the conferees were drawn inexorably together by the conference theme. Perhaps it is …
Date: November 9, 1999
Creator: Hurd, Alan J.
Object Type: Article
System: The UNT Digital Library