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Southwest Regional Partnership on Carbon Sequestration Phase II

Description: The Southwest Regional Partnership (SWP) on Carbon Sequestration designed and deployed a medium-scale field pilot test of geologic carbon dioxide (CO2) sequestration in the Aneth oil field. Greater Aneth oil field, Utah's largest oil producer, was discovered in 1956 and has produced over 455 million barrels of oil (72 million m3). Located in the Paradox Basin of southeastern Utah, Greater Aneth is a stratigraphic trap producing from the Pennsylvanian Paradox Formation. Because it represents an … more
Date: February 1, 2011
Creator: Rutledge, James
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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California GAMA Special Study: An isotopic and dissolved gas investigation of nitrate source and transport to a public supply well in California's Central Valley

Description: This study investigates nitrate contamination of a deep municipal drinking water production well in Ripon, CA to demonstrate the utility of natural groundwater tracers in constraining the sources and transport of nitrate to deep aquifers in the Central Valley. The goal of the study was to investigate the origin (source) of elevated nitrate and the potential for the deep aquifer to attenuate anthropogenic nitrate. The site is ideal for such an investigation. The production well is screened from … more
Date: April 14, 2010
Creator: Singleton, M. J.; Moran, J. E.; Esser, B. K.; Roberts, S. K. & Hillegonds, D. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Final Report: Eddy-Covariance Flux Tower and Tracer Technology Support for the University of Georgia Proposal: From Tower to Pixel: Integration of Patch-Size Nee Using Experimental Modeling Footprint Analysis.

Description: Brookhaven National Laboratory has been funded since October of 2000 to provide assistance to the University of Georgia in conducting footprint analyses of individual towers based on meteorology and trace gas measurements. Brookhaven researchers conducted air flow measurements using perfluorocarbon tracers and meteorological instrumentation for three experimental campaigns at an AmeriFlux research site maintained by Dr. Monique Leclerc near Gainesville, FL. In addition, BNL provided assistance … more
Date: September 1, 2007
Creator: Lewin, K. F.; Nagy, J. & Watson, T. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Isotopic Tracers for Biogeochemical Processes and Contaminant Transport: Hanford, Washington

Description: Our goal is to use isotopic measurements to understand how contaminants are introduced to and stored in the vadose zone, and what processes control migration from the vadose zone to groundwater and then to surface water. We have been using the Hanford Site in south-central Washington as our field laboratory, and our investigations are often stimulated by observations made as part of the groundwater monitoring program and vadose zone characterization activities. Understanding the transport of co… more
Date: April 19, 2007
Creator: DePaolo, Donald J.; Christensen, John N.; Conrad, Mark E. & Dresel, and P. Evan
Item Type: Refine your search to only Poster
Partner: UNT Libraries Government Documents Department
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FLORIDA TOWER FOOTPRINT EXPERIMENTS

Description: The Florida Footprint experiments were a series of field programs in which perfluorocarbon tracers were released in different configurations centered on a flux tower to generate a data set that can be used to test transport and dispersion models. These models are used to determine the sources of the CO{sub 2} that cause the fluxes measured at eddy covariance towers. Experiments were conducted in a managed slash pine forest, 10 km northeast of Gainesville, Florida, in 2002, 2004, and 2006 and in… more
Date: January 1, 2007
Creator: WATSON,T.B.; DIETZ, R.N.; WILKE, R.; HENDREY, G.; LEWIN, K.; NAGY, J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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THE MADISON SQUARE GARDEN DISPERSION STUDY (MSG05) METEOROLOGICAL DATA DESCRIPTION.

Description: MSG05 was a study of atmospheric transport and dispersion in the deep urban canyons of Midtown New York City, in the area of Madison Square Garden. This downtown area is considered to be a prime target for terrorist activities, and has one of the largest commuter populations in the world. Little is known about air flow and hazardous gas dispersion in such scenarios, since previous urban field experiments have focused on small to medium sized cities with much smaller street canyons. On March 10 … more
Date: October 1, 2006
Creator: Reynolds, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Urban Dispersion Program MSG05 Field Study: Summary of Tracer and Meteorological Measurements

Description: The Urban Dispersion Program is a multi-year project, funded by the U.S. Department of Homeland Security, to better understand the flow and dispersion of airborne contaminants through and around the deep street canyons of New York City. The first tracer and meteorological field study was a limited study conducted during March 2005 near the Madison Square Garden in midtown Manhattan. Six safe, inert, gaseous perfluorocarbon tracers were released simultaneously at five street-level locations duri… more
Date: August 9, 2006
Creator: Allwine, K Jerry & Flaherty, Julia E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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CHARACTERIZATION OF HETEROGENEITIES AT THE RESERVOIR SCALE: SPATIAL DISTRIBUTION AND INFLUENCE ON FLUID FLOW

Description: The theory behind how chemically reactive tracers are used to characterize the velocity and temperature distribution in steady flowing systems is reviewed. Kinetic parameters are established as a function of reservoir temperatures and fluid residence times for selecting appropriate reacting systems. Reactive tracer techniques are applied to characterize the temperature distribution in a laminar-flow heat exchanger. Models are developed to predict reactive tracer behavior in fractured geothermal… more
Date: May 8, 2006
Creator: Gross, Michael R.; Ghosh, Kajari; Manda, Alex K. & Aich, Sumanjit
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Field-scale in Situ measurements of Vadose Zone Flow and Transport Using Multiple Tracers at INEEL Vadose Zone Research

Description: Vadose zone contamination is a legacy of DOE operations over the past 50 years and is a problem throughout the complex, including the Idaho national Engineering and Environmental Laboratory (INEEL)
Date: April 14, 2006
Creator: Roback, Robert C. & Asmerom, Yemane
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An Integrated Approach to Characterizing Bypassed Oil in Heterogeneous and Fractured Reservoirs Using Partitioning Tracers

Description: We explore the use of efficient streamline-based simulation approaches for modeling and analysis partitioning interwell tracer tests in heterogeneous and fractured hydrocarbon reservoirs. We compare the streamline-based history matching techniques developed during the first two years of the project with the industry standard assisted history matching. We enhance the widely used assisted history matching in two important aspects that can significantly improve its efficiency and effectiveness. Fi… more
Date: August 1, 2005
Creator: Datta-Gupta, Akhil
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tracer Interpretation Using Temporal Moments on a Spreadsheet

Description: This report presents a method for interpreting geothermal tracer tests. The method is based on the first temporal moment (mean residence time) of the tracer in the subsurface. The individual steps required to interpret a tracer test are reviewed and discussed. And an example tracer test directs the user through the interpretation method. An Excel spreadsheet application of the interpretation method is a companion document to this report.
Date: June 1, 2005
Creator: Shook, G. Michael & Forsmann, J. Hope
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Gaussian Modeling of Tracer Concentrations during the Joint Urban 2003 Experiment

Description: The Joint Urban 2003 Experiment (JU2003) was conducted in Oklahoma City, Oklahoma during the summer of 2003. This extensive field experiment included over a hundred scientists measuring airflow, tracer concentration, and other variables pertinent to urban dispersion. A description of JU2003 can be found at this website: http://ju2003.pnl.gov/.
Date: June 18, 2004
Creator: Gouveia, F J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tracers and Tracer Testing: Design, Implementation, Tracer Selection, and Interpretation Methods

Description: Conducting a successful tracer test requires adhering to a set of steps. The steps include identifying appropriate and achievable test goals, identifying tracers with the appropriate properties, and implementing the test as designed. When these steps are taken correctly, a host of tracer test analysis methods are available to the practitioner. This report discusses the individual steps required for a successful tracer test and presents methods for analysis. The report is an overview of tracer t… more
Date: January 1, 2004
Creator: Shook, G. Michael; L., Shannon & Wylie, Allan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Characterization of Mixed Wettability at Different Scales and Its Impact on Oil Recovery Efficiency

Description: The objectives of the this research project were to: (1) Quantify the pore scale mechanisms that determine the wettability state of a reservoir; (2) Study the effect of crude oil, brine and mineral compositions in the establishment of mixed wet states; (3) Clarify the effect of mixed-wettability on oil displacement efficiency in waterfloods; and (4) Develop a new tracer technique to measure wettability, fluid distributions, residual saturations and relative permeabilities.
Date: September 1, 2003
Creator: Sharma, Mukul M. & Hirasaki, George J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of Mixed Wettablility at Different Scales and Its Impact on Oil Recovery Efficiency

Description: The objectives of the this research project were to: (1) Quantify the pore scale mechanisms that determine the wettability state of a reservoir; (2) Study the effect of crude oil, brine and mineral compositions in the establishment of mixed wet states; (3) Clarify the effect of mixed-wettability on oil displacement efficiency in waterfloods; and (4) Develop a new tracer technique to measure wettability, fluid distributions, residual saturations and relative permeabilities.
Date: August 31, 2003
Creator: Sharma, Mukul M. & Hirasaki, George J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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In Situ Tracer method for establishing the presence and predicting the activity of heavy metal-reducing microbes in the subsurface. Final Report

Description: Tracer method to establish presence and distribution of chromium reducing microbes. The primary objective of this research was to establish an in situ tracer method for detecting the presence. distribution. and activity of subsurface heavy metal-reducing microorganisms. Research focused on microbial systems responsible for the reduction of chromium and a suite of biotracers coupled to the reduction process. The tracer method developed may be used to characterize sites contaminated with chromium… more
Date: July 1, 2003
Creator: Hatfield, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of Radon-222 as Natural Tracer for Monitoring the Remediation of NAPL in the Subsurface

Description: Naturally occurring 222-radon in ground water can potentially be used as an in situ partitioning tracer to characterize dense nonaqueous phase liquid (DNAPL) saturations. The static method involves comparing radon concentrations in water samples from DNAPL-contaminated and non-contaminated portions of an aquifer. During a push-pull test, a known volume of test solution (radon-free water containing a conservation tracer) is first injected (''pushed'') into a well; flow is then reversed and the t… more
Date: February 27, 2003
Creator: Davis, Brian M.; Semprini, Lewis & Istok, Jonathan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Busted Butte Phase 2: of Post-Test Mineback and Overcore Rock Samples

Description: A complex tracer mixture was injected continuously for over two years into a 10 x 10 x 7 m block of tuff as part of the unsaturated-zone (UZ) tracer test at Busted Butte. The test was designed to address uncertainties associated with flow and transport models within the Topopah Springs and Calico Hills tuffs. The tracer mixture included nonreactive (Br, I, and FBAs) and reactive tracers (Li, Ce, Sm, Ni, Coy and Mn) and synthetic colloids. Once injection was completed, samples from the block wer… more
Date: October 7, 2002
Creator: Turin, H. J.; McGraw, M. A.; Jones, C. L.; Scism, C. D. & Soll, W. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reactor Room Experimental SF6 Tests to Determine Probable Stack Activity Response to Radioactive Releases

Description: This study was performed to obtain information that could be useful for obtaining an early estimate of the probable total stack activity monitor response in the event of an accidental release of radioactive activity in the process room.
Date: August 19, 2002
Creator: Cooper, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Characterization of Mixed Wettability at Different Scales and its Impact on Oil Recovery Efficiency

Description: The objectives of this project was to: (1) quantify the pore scale mechanisms that determine the wettability state of a reservoir, (2) study the effect of crude oil, brine and mineral compositions in the establishment of mixed wet states, (3) clarify the effect of mixed - wettability on oil displacement efficiency in waterfloods, (4) develop a new tracer technique to measure wettability, fluid distributions, residual saturation's and relative permeabilities, and (5) develop methods for properly… more
Date: January 28, 2002
Creator: Sharma, Mukul M. & Hirasaki, George J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pore connectivity effects on solute transport in rocks

Description: Retardation of nuclear contaminants in rock matrices can lead to long retention times, allowing substantial radionuclide decay prior to eventual release. Imbibition and diffusion into the rock matrix can move contaminants away from an active fracture, thereby contributing to their retardation. However, diffusive transport in some rocks may behave anomalously because of their sparsely connected porespace, in contrast to diffusion in rocks with denser pore connections. We examined imbibition of w… more
Date: November 30, 2001
Creator: Hu, Qinhong & Ewing, Robert P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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{sup 208}Tl and {sup 24}Na Gamma Sources for Tracing soil Water Movement with Deuterium

Description: The heavy water soil water tracer technique is based on the reaction of high-energy gamma photons with deuterium to indicate the tracer's location. The high-energy gamma sources {sup 208}Tl and {sup 24}Na were compared in their effectiveness to produce neutrons from heavy water. In tests with vials of heavy water at various locations in 208-liter (55-gallon) drums of dry and moist soil, {sup 24}Na gave 23 percent higher neutron count rates than {sup 208}Tl, but this was more than offset by its … more
Date: August 29, 2001
Creator: Hawkins, R. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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