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  • 1
    Call number: 9/M 03.0162
    In: Geological Society special publication
    Description / Table of Contents: Muds and mudstones are the prime control on fluid flow in sedimentary basins and near-surface environments. As the world's commonest sediment type, they act as aquitards in sedimentary basins, restricting water flow and influencing the development of overpressure. In petroleum systems they act as source rocks for nearly all oil and much gas, determine migration directions between source and trap in most settings, and act as seals to many reservoirs. In near surface environments they not only control natural flow, but have been commonly used to restrict leakage from waste disposal sites. This volume focuses on the previously poorly described physical properties of muds and mudstones in both near-surface and deep basinal settings. Amongst its contents are reviews of the compaction, permeability, thermal conductivity and mechanical properties of mudstones, experimental studies of transport properties, and case studies of the importance of fluid flow in both hydrogeological and petroleum systems.
    Type of Medium: Monograph available for loan
    Pages: 190 S. , Ill., graph. Darst., Kt.
    ISBN: 1862390444
    Series Statement: Geological Society special publication 158
    Note: Andrew C. Aplin, Andrew J. Fleet, and Joe H. S. Macquaker: Muds and mudstones: physical and fluid-flow properties / Geological Society, London, Special Publications, 158:1-8, doi:10.1144/GSL.SP.1999.158.01.01 --- Physical Properties --- F. J. Pearson: What is the porosity of a mudrock? / Geological Society, London, Special Publications, 158:9-21, doi:10.1144/GSL.SP.1999.158.01.02 --- David N. Dewhurst, Yunlai Yang, and Andrew C. Aplin: Permeability and fluid flow in natural mudstones / Geological Society, London, Special Publications, 158:23-43, doi:10.1144/GSL.SP.1999.158.01.03 --- Kirsti Midttømme and Elen Roaldset: Thermal conductivity of sedimentary rocks: uncertainties in measurement and modelling / Geological Society, London, Special Publications, 158:45-60, doi:10.1144/GSL.SP.1999.158.01.04 --- D. N. Petley: Failure envelopes of mudrocks at high confining pressures / Geological Society, London, Special Publications, 158:61-71, doi:10.1144/GSL.SP.1999.158.01.05 --- K. Bjørlykke: Principal aspects of compaction and fluid flow in mudstones / Geological Society, London, Special Publications, 158:73-78, doi:10.1144/GSL.SP.1999.158.01.06 --- Experimental Studies --- M. B. Clennell, D. N. Dewhurst, K. M. Brown, and G. K. Westbrook: Permeability anisotropy of consolidated clays / Geological Society, London, Special Publications, 158:79-96, doi:10.1144/GSL.SP.1999.158.01.07 --- M. G. Peters and A. J. Maltman: Insights into the hydraulic performance of landfill-lining clays during deformation / Geological Society, London, Special Publications, 158:97-106, doi:10.1144/GSL.SP.1999.158.01.08 --- J. F. Harrington and S. T. Horseman: Gas transport properties of clays and mudrocks / Geological Society, London, Special Publications, 158:107-124, doi:10.1144/GSL.SP.1999.158.01.09 --- Case Studies --- Gary M. Ingram and Janos L. Urai: Top-seal leakage through faults and fractures: the role of mudrock properties / Geological Society, London, Special Publications, 158:125-135, doi:10.1144/GSL.SP.1999.158.01.10 --- T. Skar, R. T. Van Balen, L. Arnesen, and S. Cloetingh: Origin of overpressures on the Halten Terrace, offshore mid-Norway: the potential role of mechanical compaction, pressure transfer and stress / Geological Society, London, Special Publications, 158:137-156, doi:10.1144/GSL.SP.1999.158.01.11 --- J. Dorsch and T. J. Katsube: Porosity characteristics of Cambrian mudrocks (Oak Ridge, East Tennessee, USA) and their implications for contaminant transport / Geological Society, London, Special Publications, 158:157-173, doi:10.1144/GSL.SP.1999.158.01.12 --- K. Walraevens and J. Cardenal: Preferential pathways in an Eocene clay: hydrogeological and hydrogeochemical evidence / Geological Society, London, Special Publications, 158:175-186, doi:10.1144/GSL.SP.1999.158.01.13
    Location: Reading room
    Branch Library: GFZ Library
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  • 2
    Keywords: Siltstein ; Strömungsmechanik ; Ton (Geologie) ; Tonstein ; Mud ; Mudstone ; Permeability ; Rochas sedimentares (propriedades físicas)
    Description / Table of Contents: Andrew C. Aplin, Andrew J. Fleet, and Joe H. S. Macquaker: Muds and mudstones: physical and fluid-flow properties / Geological Society, London, Special Publications, 158:1-8, doi:10.1144/GSL.SP.1999.158.01.01 --- Physical Properties --- F. J. Pearson: What is the porosity of a mudrock? / Geological Society, London, Special Publications, 158:9-21, doi:10.1144/GSL.SP.1999.158.01.02 --- David N. Dewhurst, Yunlai Yang, and Andrew C. Aplin: Permeability and fluid flow in natural mudstones / Geological Society, London, Special Publications, 158:23-43, doi:10.1144/GSL.SP.1999.158.01.03 --- Kirsti Midttømme and Elen Roaldset: Thermal conductivity of sedimentary rocks: uncertainties in measurement and modelling / Geological Society, London, Special Publications, 158:45-60, doi:10.1144/GSL.SP.1999.158.01.04 --- D. N. Petley: Failure envelopes of mudrocks at high confining pressures / Geological Society, London, Special Publications, 158:61-71, doi:10.1144/GSL.SP.1999.158.01.05 --- K. Bjørlykke: Principal aspects of compaction and fluid flow in mudstones / Geological Society, London, Special Publications, 158:73-78, doi:10.1144/GSL.SP.1999.158.01.06 --- Experimental Studies --- M. B. Clennell, D. N. Dewhurst, K. M. Brown, and G. K. Westbrook: Permeability anisotropy of consolidated clays / Geological Society, London, Special Publications, 158:79-96, doi:10.1144/GSL.SP.1999.158.01.07 --- M. G. Peters and A. J. Maltman: Insights into the hydraulic performance of landfill-lining clays during deformation / Geological Society, London, Special Publications, 158:97-106, doi:10.1144/GSL.SP.1999.158.01.08 --- J. F. Harrington and S. T. Horseman: Gas transport properties of clays and mudrocks / Geological Society, London, Special Publications, 158:107-124, doi:10.1144/GSL.SP.1999.158.01.09 --- Case Studies --- Gary M. Ingram and Janos L. Urai: Top-seal leakage through faults and fractures: the role of mudrock properties / Geological Society, London, Special Publications, 158:125-135, doi:10.1144/GSL.SP.1999.158.01.10 --- T. Skar, R. T. Van Balen, L. Arnesen, and S. Cloetingh: Origin of overpressures on the Halten Terrace, offshore mid-Norway: the potential role of mechanical compaction, pressure transfer and stress / Geological Society, London, Special Publications, 158:137-156, doi:10.1144/GSL.SP.1999.158.01.11 --- J. Dorsch and T. J. Katsube: Porosity characteristics of Cambrian mudrocks (Oak Ridge, East Tennessee, USA) and their implications for contaminant transport / Geological Society, London, Special Publications, 158:157-173, doi:10.1144/GSL.SP.1999.158.01.12 --- K. Walraevens and J. Cardenal: Preferential pathways in an Eocene clay: hydrogeological and hydrogeochemical evidence / Geological Society, London, Special Publications, 158:175-186, doi:10.1144/GSL.SP.1999.158.01.13
    Pages: Online-Ressource (190 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 1862390444
    Language: English
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  • 3
    Publication Date: 2011-04-01
    Description: Post-depositional chemical reactions involving iron are important in shallow-marine sediments. They play a significant role in governing the types of minerals that precipitate in such settings. The level of iron supply to marine sediments creates contrasting chemical pathways, each producing distinctive mineral assemblages. An understanding of these processes not only offers insights into past sedimentary environments on Earth but also a greater appreciation of the nature of mineral-water-bacteria interactions throughout the shallow-marine realm.
    Print ISSN: 1811-5209
    Electronic ISSN: 1811-5217
    Topics: Geosciences
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  • 4
    Publication Date: 2014-03-01
    Description: Diagenesis significantly impacts mudstone lithofacies. Processes operating to control diagenetic pathways in mudstones are poorly known compared to analogous processes occurring in other sedimentary rocks. Selected organic-carbon-rich mudstones, from the Kimmeridge Clay and Monterey Formations, have been investigated to determine how varying starting compositions influence diagenesis. The sampled Kimmeridge Clay Formation mudstones are organized into thin homogenous beds, composed mainly of siliciclastic detritus, with some constituents derived from water-column production (e.g., coccoliths, S-depleted type-II kerogen, as much as 52.6% total organic carbon [TOC]) and others from diagenesis (e.g., pyrite, carbonate, and kaolinite). The sampled Monterey Formation mudstones are organized into thin beds that exhibit pelleted wavy lamination, and are predominantly composed of production-derived components including diatoms, coccoliths, and foraminifera, in addition to type-IIS kerogen (as much as 16.5% TOC), and apatite and silica cements. During early burial of the studied Kimmeridge Clay Formation mudstones, the availability of detrital Fe(III) and reactive clay minerals caused carbonate- and silicate-buffering reactions to operate effectively and the pore waters to be Fe(II) rich. These conditions led to pyrite, iron-poor carbonates, and kaolinite cements precipitating, preserved organic carbon being S-depleted, and sweet hydrocarbons being generated. In contrast, during the diagenesis of the sampled Monterey Formation mudstones, sulfide oxidation, coupled with opal dissolution and the reduced availability of both Fe(III) and reactive siliciclastic detritus, meant that the pore waters were poorly buffered and locally acidic. These conditions resulted in local carbonate dissolution, apatite and silica cements precipitation, natural kerogen sulfurization, and sour hydrocarbons generation. Differences in mud composition at deposition significantly influence subsequent diagenesis. These differences impact their source rock attributes and mechanical properties.
    Print ISSN: 0149-1423
    Electronic ISSN: 1943-2674
    Topics: Geosciences
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  • 5
    Publication Date: 2011-12-01
    Description: Mudstone is the most abundant sedimentary rock and variously acts as sources, seals, and shale gas reservoirs in petroleum systems. Many important physicochemical properties of mudstones are strongly influenced by the mineralogy and size of deposited grains, and by diagenetic changes (precompaction and postcompaction); these are commonly predictable. The diverse composition of mudstones reflects input and hydrodynamic segregation of detrital materials to basins, primary production within basins, and diagenetic processes (both precipitation and dissolution) in the sediment. High-magnification observations both in modern and ancient sediments demonstrate that mudstones are texturally and mineralogically heterogeneous; this variability is not always readily apparent. Although some mud is indeed deposited by suspension settling out of low-energy buoyant plumes, textural analyses reveal that it is commonly dispersed by a combination of waves, gravity-driven processes, and unidirectional currents driven variously by storms and tides. Such dispersal mechanisms mean that muddy successions are typically organized into packages that can be interpreted using sequence stratigraphy. Early bioturbation homogenizes mud, whereas early chemical diagenesis can result in highly cemented zones developing, especially at stratal surfaces. The nature of deeper burial diagenesis, which involves compaction, mineral dissolution, recrystallization, mineral reorientation and lithification, and petroleum generation, is preconditioned by depositional and early diagenetic characteristics of the mud. Although the petrophysical properties of homogeneous mudstones are reasonably well known, the quantitative implications of heterogeneity for petroleum expulsion, retention, petroleum migration, seal capacity, acoustic anisotropy, and identification of shale gas reservoir sweet spots are essentially unexplored. Future work should seek to redress this position.
    Print ISSN: 0149-1423
    Electronic ISSN: 1943-2674
    Topics: Geosciences
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  • 6
    Publication Date: 1999-01-01
    Print ISSN: 0305-8719
    Electronic ISSN: 2041-4927
    Topics: Geosciences
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  • 7
    Publication Date: 2013-08-01
    Description: Source-rock reservoirs are fine-grained petroleum source rocks (“shales” or “mudstones”) having geomechanical properties that allow those rocks to produce hydrocarbons at economic rates after stimulation by hydraulic fracturing. Many of the assumptions commonly adopted by geophysicists to characterize shales cannot be applied to source-rock reservoirs. For example, the mineralogies of many source-rock reservoirs are not dominated by clay minerals and so mathematical and/or conceptual models developed for clay-dominated mudstones are not appropriate and cannot be applied to them. Instead, mudstones of shale plays are generally dominated by biogenic calcite and/or quartz. We use terminology of sedimentary geology to show that anisotropy is scale-dependent in source-rock reservoirs, and we discuss the depositional and diagenetic processes that control these and other geophysical properties of interest. The mudstones of source-rock reservoirs may or may not be anisotropic at the lamination scale (i.e., millimeters), the scale commonly used to measure anisotropic parameters via core plugs, but they are nearly always anisotropic at the bedset (centimeters to several meters) and member (tens of meters) scales. Because of the anisotropic nature of mudstones, elastic properties are not scalars at the length/thickness scales that can be defined using seismic methods. Properties of interest are likely to be different parallel to bedding compared to perpendicular to bedding. Because of the subseismic scale of much of this variability, thin-bed effects are likely to influence the AVO behavior of source-rock reservoirs.
    Print ISSN: 2324-8858
    Electronic ISSN: 2324-8866
    Topics: Geosciences
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  • 8
    Publication Date: 2007-12-14
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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