Unsaturated fractured rock characterization methods and data sets at the Apache Leap Tuff Site

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Published by Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission in Washington, DC .

Written in English

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  • Radioactive waste disposal in the ground -- Arizona -- Data processing.,
  • Volcanic ash, tuffs, etc. -- Arizona -- Permeability -- Data processing.

Edition Notes

Book details

Statementprepared by T.C. Rasmussen ... [et al.].
ContributionsRasmussen, T. C., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering., University of Arizona. Dept. of Hydrology and Water Resources.
The Physical Object
Paginationxv, 125 p. :
Number of Pages125
ID Numbers
Open LibraryOL14680562M

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@article{osti_, title = {Unsaturated fractured rock characterization methods and data sets at the Apache Leap Tuff Site}, author = {Rasmussen, T.C.

and Evans, D.D. and Sheets, P.J. and Blanford, J.H.}, abstractNote = {Performance assessment of high-level nuclear waste containment feasibility requires representative values of parameters as input, including parameter moments. Get this from a library. Unsaturated fractured rock characterization methods and data sets at the Apache Leap Tuff Site.

[T C Rasmussen; U.S. Nuclear Regulatory Commission. Office of Nuclear Unsaturated fractured rock characterization methods and data sets at the Apache Leap Tuff Site book Research. Division of Engineering.; University of Arizona. Characterization activities are presented for the Apache Leap Tuff field site.

The field site is located in unsaturated, fractured tuff in central Arizona. Hydraulic, pneumatic, and thermal characteristics of the tuff are summarized, along with methodologies employed to monitor and sample hydrologic and geochemical processes at the field by: Approximate boundaries between different flow regimes in fractured rocks.

Water moves through unsaturated, fractured rock by a com- Apache Leap Tuff x1-ag E ⫺ 16 E ⫹ 1] A pronounced permeability (k) scale effect has been previously observed through the analyses of single-and cross-hole pneumatic injection tests in unsaturated fractured tuff at the Apache Leap.

LNAPL Behavior in Fractured Rock: Implications for Characterization and Remediation Paul E. Hardisty1,2, Jon Roher3 and Jane Dottridge1 1Komex Environmental Ltd, London, U.K.

2Department of Civil Engineering, Imperial College of Science and Technology, London, U.K. Komex Environmental Ltd., Los Angeles, USAFile Size: KB. This paper summarizes lessons learned from single-hole and cross-hole pneumatic injection tests recently completed by The University of Arizona in unsaturated fractured tuffs at the Apache Leap Research Site (ALRS) near Superior, Arizona.

Knowledgeofnewandexisting site characterization tools and understanding of analysis methods are necessary first steps toward improved remediation of fractured formations.

Format of Project Report The project report describes the work and findings of a hydrogeologic characterization study of a saturated, fractured, granitic rock aquifer in.

Fractured Rock Conference: State of the Science and Measuring Success in Remediation, September, Portland, Maine. () Site Characterization Technologies for DNAPL Investigations EPA R, pp, Use of a Geophysical Toolbox to Characterize Ground-Water Flow in Fractured Rock.

Collecting data from a fractured rock site requires efficiencies beyond what are often followed in unconsolidated media investigations.

Applying the characterization practices and concepts to fractured rock sites outlined in this guidance will improve understanding of the site so that environmental professionals can select effective and cost. A conceptual model of unsaturated flow in fractured rock must represent processes within individual fractures, in fracture networks, and the coupling between these systems and the rock matrix.

The characterization of flow in fractured rock requires consideration of the orientation, connectivity, and aperture of fractures at different scales. This study presents a characterization of fractured basement reservoir by using statistical and fractal methods with outcrop data, seismic data, as well as FMI log data.

In the statistical method, fracture intensity and length have been calculated from various outcrop data. The optimum statistical distribution functions of fracture length for outcrops have been identified with the use of Cited by: 2.

The definition of tuff given by the American Geological Institute is: “A rock formed of compacted volcanic fragments, generally smaller than 4 mm in diameter.” However, in practice and in the context of this book, the term tuff applies to the variety of deposits originating from volcanic eruptions of high-silica magmas.

These deposits are dominantly referred to as air-fall or ash-flow tuffs. Fractured Metamorphic Rock - Piedmont. Characterization included: Bedrock cores and thin section analysis (gneiss v.

schist) Borehole geophysics PWR aquifer test - one connected anisotropic aquifer but with differing properties Site-wide water level gauging and gradient analysis suggesting less flow in BRFile Size: 3MB.

[1] Methods for obtaining estimates of seepage into drifts and tunnels excavated in unsaturated fractured rocks are of interest for engineering and environmental applications. For uniform porous media a tunnel surface may present a capillary barrier promoting water diversion around the opening through the porous matrix, hence reducing seepage into the by: You can write a book review and share your experiences.

Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. 16 Leonardo B. Monachesi, Luis Guarracino, A Fractal Model for Predicting Water and Air Permeabilities of Unsaturated Fractured Rocks, Transport in Porous Media,90, 3, CrossRef; 17 Flow and Transport in Porous Media and Fractured Rock,CrossRef.

Practical Aspects of Simulation of Fractured Reservoirs 08/01/James R. Gilman, Page 2 of 35 All of the data sets methods to up-scale measured data from all sources for fluid flow applications. evaluate the potential of conventional logging methods to identify fractures in a well drilled in a fractured clastic reservoir.

Material and Methods Logging data For this study logging data were provided by a petro-leum company from one well of a clastic reservoir with three main lithologies, sandstone, shale, and coal. The well was. 1 EXAMPLES OF THE DETERMINATION OF FRACTURE PARAMETERS FROM P-WAVE SEISMIC DATA David Gray*1, Kim Head2, Mark Lahr1 and Graham Roberts1 Abstract Several examples of the use of Amplitude Versus Angle and Azimuth (AVAZ) analysis to determine azimuthal seismic anisotropy from pre- stack seismic data are compared to other methods of detecting fracture orientation and.

Fractured Reservoirs (Page 1 of 7) Drs. La Pointe and Abbaszadeh Innovative Petrotech Solutions, Inc Fractured Reservoir Characterization and Modeling Instructors: Dr. Paul La Pointe and Dr. Maghsood Abbaszadeh Duration: 5 days Level: Intermediate-Advanced Course Objectives and Description This course is designed for geologists, geophysicists and reservoir engineers who are part ofFile Size: 52KB.

DOI: / Fracture characterization in tight carbonates: An example from the Ozark Plateau, Arkansas Caroline M. Burberry, 1 and Matthew H. Peppers 2 1 Department of Earth and Atmospheric Sciences, University of Nebraska–Lincoln, Bessey Hall, Lincoln, Nebraska ; [email protected] 2 Department of Earth and Atmospheric Sciences, University of Cited by: 4.

The rock sample used in the fracture flow experiments was selected from welded tuff specimens collected from Apache Leap, Arizona, as part of Task 2 of the Seismic Rock Mechanics (SRM) research project.

The tuff at the Apache Leap site is highly vitrified and densely welded, similar to the tuff at the. Full-Azimuth Fracture Characterization The pursuit of a full description and understanding of the geomechanical properties of fractured reservoirs has accelerated the development of new seismic imaging and characterization procedures.

To recover and. Fractured Core Analysis: Interpretation, Logging, and Use of Natural and Induced Fractures in Core - Methods in Exploration No. 8 [B. Kulander, S. Dean, B. Jr.] on *FREE* shipping on qualifying offers. Fractured Core Analysis: Interpretation, Logging, and Use of Natural and Induced Fractures in Core - Methods in Exploration No.

8Author: B. Kulander, S. Dean, B. 1 FRACTURED ROCK-MASS CHARACTERISATION FOR PREDICTING THE FATE OF DNAPLS Gary P. Wealthall1, Bernard H. Kueper2 and David N. Lerner1 (1University of Sheffield, UK: 2Queen’s University, Kingston, Ontario, Canada) INTRODUCTION Dense non-aqueous phase liquids (DNAPLs) are notoriously difficult to locate in the subsurface.

This book solves the open problems in fluid flow modeling through the fractured vuggy carbonate reservoirs. Fractured vuggy carbonate reservoirs usually have complex pore structures, which contain not only matrix and fractures but also the vugs and : Hardcover. The finely broken up material was given a large saturated permeability, × 10 −11 m 2, typical of fractures in the Yucca Mountain welded tuff, and a relationship between saturated permeability k s and capillary radius r c (k s = r c 2 /8) (from the measured data of Yucca Mountain tuffs, Apache Leap tuffs, and Las Cruces soil) was imposed Cited by: Simulation of Liquid and Vapor Movement in Unsaturated Fractured Rock at the Apache Leap Tuff Site: Models and Strategies.

NUREG/CR-5U.S. Nuclear Regulatory Commission, Washington, D.C. This report includes a detailed description of the code characteristics and evaluates their applicability based on governing equations and code options.

However, seismic data may reveal only certain fracture parameters and those are fracture orientation, crack density and fracture infill. Most of the widely used fracture characterization methods such as Swave splitting analysis or amplitude vs.

offset and azimuth (AVOA) analysis fail to render desired results in laterally varying media. 1) Model Data Data for DFN modeling are composed of fracture properties, fracture region properties, and rock matrix properties.

Fracture properties commonly include statistical data on fracture orientation, cross-cutting relationships, fracture size and spacing, and hydrologic properties, such as aperture, transmissivity, and storativity.

Vaughn Ch 8 Ch9 Ch10 Learn with flashcards, games, and more — for free. and rock mechanics approach to natural fractured reservoir characterization. The local structure entropy analysis on 3D seismic data is used to detect distributions of fault and sub-fault systems.

The curvature attribute along with modeled strain and stress field, constrained with the log data measuring. We investigate whether similar scaling laws apply to bedding-parallel fracture sets. One of the challenges of collecting systematic data for bedding-parallel fractures is the difficulty of distinguishing between fibrous beef-filled fractures and fossils with a fibrous structure, e.g.

the Inoceramidae bivalves present in many Mesozoic shales. Rock mass characterization for large caverns in India and Norway using a new method of recording and presenting engineering geological data Mechanical behaviour and failure of rock masses having distributed sets of cracks of finite length | digital version.

Permeability of Apache Leap tuff: borehole and core measurements using. Acoustic and electrical image logs in fractured granitic rocks penetrated by U.S. Navy well 58A, Coso Wash," in the eastern margin of the Coso geothermal field, California, were compared to evaluate their relative ability to characterize fractures and fault rock textures.

The success of characterization of rock fractures hinges how much and how well we can obtain and interpret the fractures or joint data for rock engineering.

Geologists and engineers deploy the most up to date theories, techniques, and tools to make better record, representation and predictions using geological data acquisition, geomorphology.

In laboratory fracture toughness studies, the crack growth resistance of rock materials may be influenced by different factors such as specimen geometry, loading conditions, and also the type of pre-notch cut in the test sample.

In this paper, a large number of mode I fracture toughness experiments are conducted on an Iranian white rock “Harsin marble” with six different mode I by: 6.

The fracture data included a wide range of crack lengths, specimen widths, and thicknesses. The materials analyzed had a wide range of tensile properties. Failure stresses calculated using the criterion agreed well (± 10 percent) with experimental failure stresses.

The criterion was also found to correlate fracture data from different specimen Cited by: Fracture Characterization in Basement Using the Latest Generation of LWD Sonic and Resistivity Image Logs The integrated methodology combines the strength of the two independent methods to give a comprehensive characterization of the fracture systems.

essentially this sets a benchmark in the fractured basement characterization. Numerous. Fractured Carbonate Rock Research. According to a review volume on carbonate exploration and reservoir analysis co-edited by an SDI researcher, it is commonly quoted that carbonate reservoirs contain some 50–60% of the world’s oil and gas reserves (Garland et al., ).Characterizing discontinuities in naturally fractured outcrop analogues and rock core: the need to consider fracture Q1 development over geological time Discontinuity data in rock masses are generally analysed according to spatial and geometrical attri- quences for rock mass characterization.

For exam-ple, RQD calculated on the basis of.Analysis of Fractures and Tectonic Structures in Core. Byron R. Kulander, Stuart L.

Dean. Core analysis applied to characterization of fractured reservoirs should include interpretation of drilling-induced fractures, natural fractures, and tectonic structures.

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