Download e-book for kindle: Muds and Mudstones: Physical and Fluid-Flow Properties by Andrew C. Aplin, A. J. Fleet, Joe H. S. Macquaker

By Andrew C. Aplin, A. J. Fleet, Joe H. S. Macquaker

ISBN-10: 1862390444

ISBN-13: 9781862390447

Muds and mudstones are the best regulate on fluid move in sedimentary basins and close to floor environments. because the world's commonest sediment kind, they act as aquitards in sedimentary basins, limiting water circulation and influencing the advance of overpressure. In petroleum structures they act as resource rocks for almost all oil and lots more and plenty gasoline, be certain migration instructions among resource and capture in such a lot settings, and act as seals to many reservoirs. In close to floor environments they not just regulate average circulate yet were frequent to limit leakage from waste disposal websites. This quantity specializes in the poorly defined actual houses of muds and mudstones in either near-surface and deep basinal settings. among its contents are studies of compaction, permeability, thermal conductivity and mechanical homes of mudstones, experimental reports of shipping houses and case stories of the significance of fluid circulate in either hydrogeological and petroleum structures. a different choice of papers in regards to the actual and fluid movement houses of muds and mudstones, overlaying shallow and deep burial environments. Readership: Petroleum Geoscientists, Waste Disposal Geoscientists, Engineers. Engineering Geologists, Hydrogeologists and Geotechnical Engineers. precept Authors F. J. Pearson, Paul Scherrer Institute, Switzerland. D. N. Dewhurst, Imperial university, united kingdom. ok. Midttome, NTNU, Tronheim. D. N. Petley, collage of Portsmouth, united kingdom. ok. Bjorlykke, collage of Oslo, Norway. M. B. Clennell, college of Leeds, united kingdom. M. B. Peters, collage of Wales Aberystwyth, united kingdom. J. F. Harrington, British Geological Survey, united kingdom. G. M. Ingram, Shell improvement, Australia. T. Skar, Vrije Universiteit.J. Dorsch, college of St. Louis, united states. ok. Walraevens, college of Gent. additionally on hand: realizing the Micro to Macro Behaviour of Rock - Fluid structures (No. 249) - ISBN 1862391866 courting & period of Fluid movement occasions (Geological Society designated booklet) - ISBN 1862390193 The Geological Society of LondonFounded in 1807, the Geological Society of London is the oldest geological society on the earth, and one of many greatest publishers within the Earth sciences.The Society publishes a variety of high quality peer-reviewed titles for teachers and pros operating within the geosciences, and enjoys an enviable overseas popularity for the standard of its work.The many parts during which we submit in include:-Petroleum geology-Tectonics, structural geology and geodynamics-Stratigraphy, sedimentology and paleontology-Volcanology, magmatic experiences and geochemistry-Remote sensing-History of geology-Regional geology courses

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Extra info for Muds and Mudstones: Physical and Fluid-Flow Properties (Geological Society Special Publication)

Example text

However, this equation often produces discrepancies of many hundreds of per cent between predicted and measured permeability in muds (Fig. 5). This is partly because the Kozeny-Carman equation assumes that all pores are capillary tubes with the same cross-sectional area and thus that all pores have the same diameter. g. Olsen 1962; Heling 1970; Borst 1982; Griffiths & Joshi 1989, 1990; Katsube & Williamson 1994, 1995; Dewhurst et al. 1998a). Furthermore, as the flow rate through a pore is exponentially proportional to its radius, most flow occurs through the larger, interconnected pores, which contribute only a small percentage of the surface area (Yang & Aplin 1998; Fig.

Four versions of the model expressed by equation (5) have been proposed: Capillary (Leonards 1962), Hydraulic Radius (Leonards 1962), Probabilistic Marshall (Marshall 1958) and Probabilistic Juang and Holtz (Juang & Holtz 1986a). All describe flow through a porous medimn with a range of pore diameters, d/, whose volumetric frequency, f(di), is such that Z i J(di)~-- 1 wheref(di) can be obtained directly from mercury intrusion tests. Both Garcia-Bengoechea et al. (1979) and Juang & Holtz (1986b) found that these predictive equations gave good results for the permeability of sand-clay mixtures.

I ....... 70 80 Clay Fraction (%) Fig. 11. Calculated permeabilities of three lithologically different mudstones buried to similar effective stresses (see Fig. 9 for pore size distributions). Two permeabilities are shown: 'modelled Kf is the vertical permeability calculated by the model of Yang & Aplin (1998). 'Kozeny-Carman' is the penneabihty calculated by the KozenyCarman equation. N. DEWHURST E T A L . tion of their clay fractions (Fig. 11). It should be noted also that the permeabilities calculated using Yang & Aplin's model are more than an order of magnitude lower than those calculated using the K o z e n y - C a r m a n equation.

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Muds and Mudstones: Physical and Fluid-Flow Properties (Geological Society Special Publication) by Andrew C. Aplin, A. J. Fleet, Joe H. S. Macquaker

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