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  • 2020-2022  (6)
  • 2015-2019  (26)
  • 1990-1994  (2)
  • 1
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    Reservoir Quality of Clastic and Carbonate Rocks : Analysis, Modelling and Prediction (2018)
    London : The Geological Society
    Details
    Keywords: reservoir quality ; petroleum reservoirs ; carbonate rocks ; carbonate reservoirs
    Description / Table of Contents: Petroleum reservoir quality prediction: overview and contrasting approaches from sandstone and carbonate communities / R. H. Worden, P. J. Armitage, A. R. Butcher, J. M. Churchill, A. E. Csoma, C. Hollis, R. H. Lander and J. E. Omma / Geological Society, London, Special Publications, 435, 1-31, 1 May 2018, https://doi.org/10.1144/SP435.21 --- Diagenetic pathways linked to labile Mg-clays in lacustrine carbonate reservoirs: a model for the origin of secondary porosity in the Cretaceous pre-salt Barra Velha Formation, offshore Brazil / Nicholas J. Tosca and V. Paul Wright / Geological Society, London, Special Publications, 435, 33-46, 20 November 2015, https://doi.org/10.1144/SP435.1 --- Origin and evolution of microporosity in packstones and grainstones in a Lower Cretaceous carbonate reservoir, United Arab Emirates / Daniel Morad, Matteo Paganoni, Amena Al Harthi, Sadoon Morad, Andrea Ceriani, Howri Mansurbeg, Aisha Al Suwaidi, Ihsan S. Al-Aasm and Stephen N. Ehrenberg / Geological Society, London, Special Publications, 435, 47-66, 21 December 2016, https://doi.org/10.1144/SP435.20 --- Distinguishing between eogenetic, unconformity-related and mesogenetic dissolution: a case study from the Panna and Mukta fields, offshore Mumbai, India / A. J. Barnett, V. P. Wright, V. S. Chandra and V. Jain / Geological Society, London, Special Publications, 435, 67-84, 18 December 2015, https://doi.org/10.1144/SP435.12 --- Role of facies diversity and cyclicity on the reservoir quality of the mid-Cretaceous Mishrif Formation in the southern Mesopotamian Basin, Iraq / Thamer A. Mahdi and Adnan A. M. Aqrawi / Geological Society, London, Special Publications, 435, 85-105, 22 February 2017, https://doi.org/10.1144/SP435.19 --- Burial estimates constrained by clumped isotope thermometry: example of the Lower Cretaceous Qishn Formation (Haushi-Huqf High, Oman) / Cédric M. John / Geological Society, London, Special Publications, 435, 107-121, 18 November 2015, https://doi.org/10.1144/SP435.5 --- Feldspar alteration and Fe minerals: origin, distribution and implications for sandstone reservoir quality in estuarine sediments / Ehsan Daneshvar and Richard H. Worden / Geological Society, London, Special Publications, 435, 123-139, 13 April 2017, https://doi.org/10.1144/SP435.17 --- Evolution of small-scale flow barriers in German Rotliegend siliciclastics / Benjamin Busch, Rebecca Winkler, Keyvan Osivandi, Georg Nover, Alexandra Amann-Hildenbrand and Christoph Hilgers / Geological Society, London, Special Publications, 435, 141-160, 18 November 2015, https://doi.org/10.1144/SP435.3 --- Deformation band development as a function of intrinsic host-rock properties in Triassic Sherwood Sandstone / Joshua Griffiths, Daniel R. Faulkner, Alexander P. Edwards and Richard H. Worden / Geological Society, London, Special Publications, 435, 161-176, 19 January 2016, https://doi.org/10.1144/SP435.11 --- Diagenetic controls on the location of reservoir sweet spots relative to palaeotopographical and structural highs / Jessica E. Poteet, Robert H. Goldstein and Evan K. Franseen / Geological Society, London, Special Publications, 435, 177-215, 21 December 2016, https://doi.org/10.1144/SP435.18 --- Evaluation of porosity change during chemo-mechanical compaction in flooding experiments on Liège outcrop chalk / Wenxia Wang, Merete V. Madland, Udo Zimmermann, Anders Nermoen, Reidar I. Korsnes, Silvana R. A. Bertolino and Tania Hildebrand-Habel / Geological Society, London, Special Publications, 435, 217-234, 26 October 2016, https://doi.org/10.1144/SP435.10 --- Hydrothermal dolomitization: simulation by reaction transport modelling / Alberto Consonni, Alfredo Frixa and Chiara Maragliulo / Geological Society, London, Special Publications, 435, 235-244, 14 June 2016, https://doi.org/10.1144/SP435.13 --- Reservoir quality prediction of deep-water Oligocene sandstones from the west Niger Delta by integrated petrological, petrophysical and basin modelling / O. K. Chudi, Helen Lewis, D. A. V. Stow and J. O. Buckman / Geological Society, London, Special Publications, 435, 245-264, 14 December 2016, https://doi.org/10.1144/SP435.8 --- Diagenesis, plagioclase dissolution and preservation of porosity in Eocene and Oligocene sandstones at the Greeley oil field, southern San Joaquin basin, California, USA / D. T. Nguyen, R. A. Horton and A. B. Kaess / Geological Society, London, Special Publications, 435, 265-282, 28 June 2016, https://doi.org/10.1144/SP435.14 --- History of hydrothermal fluid flow in the midcontinent, USA: the relationship between inverted thermal structure, unconformities and porosity distribution / Bradley D. King and Robert H. Goldstein / Geological Society, London, Special Publications, 435, 283-320, 17 August 2016, https://doi.org/10.1144/SP435.16 --- Enhanced porosity preservation by pore fluid overpressure and chlorite grain coatings in the Triassic Skagerrak, Central Graben, North Sea, UK / Stephan Stricker and Stuart J. Jones / Geological Society, London, Special Publications, 435, 321-341, 5 January 2016, https://doi.org/10.1144/SP435.4 --- Deciphering multiple controls on reservoir quality and inhibition of quartz cement in a complex reservoir: Ordovician glacial sandstones, Illizi Basin, Algeria / Martin Wells, Philip Hirst, Jon Bouch, Emma Whear and Nigel Clark / Geological Society, London, Special Publications, 435, 343-372, 11 December 2015, https://doi.org/10.1144/SP435.6 --- Trace element composition of authigenic quartz in sandstones and its correlation with fluid–rock interaction during diagenesis / Thomas Götte / Geological Society, London, Special Publications, 435, 373-387, 19 January 2016, https://doi.org/10.1144/SP435.2 --- Comparing clay mineral diagenesis in interbedded sandstones and mudstones, Vienna Basin, Austria / Susanne Gier, Richard H. Worden and Peter Krois / Geological Society, London, Special Publications, 435, 389-403, 20 November 2015, https://doi.org/10.1144/SP435.9 --- The relevance of dawsonite precipitation in CO2 sequestration in the Mihályi-Répcelak area, NW Hungary / Csilla Király, Eszter Sendula, Ágnes Szamosfalvi, Réka Káldos, Péter Kónya, István J. Kovács, Judit Füri, Zsolt Bendő and György Falus / Geological Society, London, Special Publications, 435, 405-418, 20 June 2016, https://doi.org/10.1144/SP435.15 --- Reactive transport modelling of compacting siliciclastic sediment diagenesis / C. Geloni, A. Ortenzi and A. Consonni / Geological Society, London, Special Publications, 435, 419-439, 10 December 2015, https://doi.org/10.1144/SP435.7
    Pages: Online-Ressource (VI, 453 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 9781786201393
    URL: http://sp.lyellcollection.org/content/435/1
    Language: English
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  • 2
    Electronic Resource
    Electronic Resource
    Development of microporosity, diffusion channels and deuteric coarsening in perthitic alkali feldspars (1990)
    Springer
    Contributions to mineralogy and petrology 104 (1990), S. 507-515 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Turbidity is an almost universal feature of alkali feldspars in plutonic rocks and has been investigated by us in alkali feldspars from the Klokken syenite using SEM and TEM. It is caused by the presence of myriads of tubular micro-inclusions, either fluid-filled micropores or sites of previous fluid inclusions, and is associated with coarsening of microperthite and development of sub-grains. Micropores are abundant in coarsened areas, in which porosities may reach 4.5%, but are almost absent from uncoarsened, pristine braind-microperthite areas. The coarsening is patchy, and involves a scale increase of up to 103 without change in the composition of the phases, low albite and low microcline, or in the bulk composition of the crystal. It occurs abruptly along an irregular front within individual crystals, which retain their original shapes. The coherent braid microperthite gives way across the front to an irregular semi-coherent film perthite over a few μm and then to a highly coarsened irregular patch perthite containing numerous small sub-grains on scales of a few hundred nm, in both phases. The coarsening and micropore formation occured at a T≤400°–450° C and it is inferred to have been driven by the release of coherent strain energy, low-angle grain-boundary migration being favoured by a fluid. The patchy nature of the coarsening and the absence of a relationship with initial grain boundaries suggest that the fluid was of local origin, possibly arising in part through exsolution of water from the feldspar. The sub-grain texture and microporosity modify profoundly the permeability of the rock, and greatly enhance the subsequent reactivity of the feldspars.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00306660
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  • 3
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    Compaction of Hyaloclastite from the Active Geothermal System at Krafla Volcano, Iceland (2020)
    Hindawi
    Details
    Publication Date: 2020-07-11
    Description: Hyaloclastites commonly form high-quality reservoir rocks in volcanic geothermal provinces. Here, we investigated the effects of confinement due to burial following prolonged accumulation of eruptive products on the physical and mechanical evolution of surficial and subsurface (depths of 70 m, 556 m, and 732 m) hyaloclastites from Krafla volcano, Iceland. Upon loading in a hydrostatic cell, the porosity and permeability of the surficial hyaloclastite decreased linearly with mean effective stress, as pores and cracks closed due to elastic (recoverable) compaction up to 22-24 MPa (equivalent to ~1.3 km depth in the reservoir). Beyond this mean effective stress, denoted as P∗, we observed accelerated porosity and permeability reduction with increasing confinement, as the rock underwent permanent inelastic compaction. In comparison, the porosity and permeability of the subsurface core samples were less sensitive to mean effective stress, decreasing linearly with increasing confinement as the samples compacted elastically within the conditions tested (to 40 MPa). Although the surficial material underwent permanent, destructive compaction, it maintained higher porosity and permeability than the subsurface hyaloclastites throughout the experiments. We constrained the evolution of yield curves of the hyaloclastites, subjected to different effective mean stresses in a triaxial press. Surficial hyaloclastites underwent a brittle-ductile transition at an effective mean stress of ~10.5 MPa, and peak strength (differential stress) reached 13 MPa. When loaded to effective mean stresses of 33 and 40 MPa, the rocks compacted, producing new yield curves with a brittle-ductile transition at ~12.5 and ~19 MPa, respectively, but showed limited strength increase. In comparison, the subsurface samples were found to be much stronger, displaying higher strengths and brittle-ductile transitions at higher effective mean stresses (i.e., 37.5 MPa for 70 m sample, 〉75 MPa for 556 m, and 68.5 MPa for 732 m) that correspond to their lower porosities and permeabilities. Thus, we conclude that compaction upon burial alone is insufficient to explain the physical and mechanical properties of the subsurface hyaloclastites present in the reservoir at Krafla volcano. Mineralogical alteration, quantified using SEM-EDS, is invoked to explain the further reduction of porosity and increase in strength of the hyaloclastite in the active geothermal system at Krafla.
    Print ISSN: 1468-8115
    Electronic ISSN: 1468-8123
    Topics: Geosciences
    Published by Hindawi
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  • 4
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    Diagenesis and its controls on reservoir quality of the Tambar oil field, Norwegian North Sea (2021)
    Elsevier
    Details
    Publication Date: 2021-01-01
    Electronic ISSN: 2666-7592
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Published by Elsevier
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  • 5
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    Sedimentology and microfacies of a mud-rich slope succession: in the Carboniferous Bowland Basin, NW England (UK) (2017)
    Geological Society of London
    Details
    Publication Date: 2017-11-21
    Print ISSN: 0016-7649
    Topics: Geosciences
    Published by Geological Society of London
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  • 6
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    The effect of oil emplacement on quartz cementation in a deeply buried sandstone reservoir (2018)
    American Association of Petroleum Geologists
    Details
    Publication Date: 2018-01-01
    Print ISSN: 0149-1423
    Electronic ISSN: 1943-2674
    Topics: Geosciences
    Published by American Association of Petroleum Geologists
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  • 7
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    Diagenesis of an evaporite-related carbonate reservoir in deeply buried Cambrian strata, Tarim Basin, northwest China (2018)
    American Association of Petroleum Geologists
    Details
    Publication Date: 2018-01-01
    Print ISSN: 0149-1423
    Electronic ISSN: 1943-2674
    Topics: Geosciences
    Published by American Association of Petroleum Geologists
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  • 8
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    Clay-Coated Sand Grains In Petroleum Reservoirs: Understanding Their Distribution Via A Modern Analogue (2017)
    Society for Sedimentary Geology
    Details
    Publication Date: 2017-04-01
    Print ISSN: 1527-1404
    Electronic ISSN: 1938-3681
    Topics: Geosciences
    Published by Society for Sedimentary Geology
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  • 9
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    Lower Cretaceous Rodby and Palaeocene Lista Shales: Characterisation and Comparison of Top-Seal Mudstones at Two Planned CCS Sites, Offshore UK (2020)
    Molecular Diversity Preservation International
    Details
    Publication Date: 2020-08-03
    Description: Petroleum-rich basins at a mature stage of exploration and production offer many opportunities for large-scale Carbon Capture and Storage (CCS) since oil and gas were demonstrably contained by low-permeability top-sealing rocks, such as shales. For CCS to work, there must be effectively no leakage from the injection site, so the nature of the top-seal is an important aspect for consideration when appraising prospective CCS opportunities. The Lower Cretaceous Rodby Shale and the Palaeocene Lista Shale have acted as seals to oil and gas accumulations (e.g., the Atlantic and Balmoral fields) and may now play a critical role in sealing the Acorn and East Mey subsurface carbon storage sites. The characteristics of these important shales have been little addressed in the hydrocarbon extraction phase, with an understandable focus on reservoir properties and their influence on resource recovery rates. Here, we assess the characteristics of the Rodby and Lista Shales using wireline logs, geomechanical tests, special core analysis (mercury intrusion) and mineralogical and petrographic techniques, with the aim of highlighting key properties that identify them as suitable top-seals. The two shales, defined using the relative gamma log values (or Vshale), have similar mean pore throat radius (approximately 18 nm), splitting tensile strength (approximately 2.5 MPa) and anisotropic values of splitting tensile strength, but they display significant differences in terms of wireline log character, porosity and mineralogy. The Lower Cretaceous Rodby Shale has a mean porosity of approximately 14 %, a mean permeability of 263 nD (2.58 × 10−19 m2), and is calcite rich and has clay minerals that are relatively rich in non-radioactive phases such as kaolinite. The Palaeocene Lista Shale has a mean porosity of approximately 16% a mean permeability of 225 nD (2.21 × 10−19 m2), and is calcite free, but contains abundant quartz silt and is dominated by smectite. The 2% difference in porosity does not seem to equate to a significant difference in permeability. Elastic properties derived from wireline log data show that Young’s modulus, material stiffness, is very low (5 GPa) for the most shale (clay mineral)-rich Rodby intervals, with Young’s modulus increasing as shale content decreases and as cementation (e.g., calcite) increases. Our work has shown that Young’s modulus, which can be used to inform the likeliness of tensile failure, may be predictable based on routine gamma, density and compressive sonic logs in the majority of wells where the less common shear logs were not collected. The predictability of Young’s modulus from routine well log data could form a valuable element of CCS-site top-seal appraisals. This study has shown that the Rodby and Lista Shales represent good top-seals to the Acorn and East Mey CCS sites and they can hold CO2 column heights of approximately 380 m. The calcite-rich Rodby Shale may be susceptible to localised carbonate dissolution and increasing porosity and permeability but decreasing tendency to develop fracture permeability in the presence of injected CO2, as brittle calcite dissolves. In contrast, the calcite-free, locally quartz-rich, Lista Shale will be geochemically inert to injected CO2 but retain its innate tendency to develop fracture permeability (where quartz rich) in the presence of injected CO2.
    Electronic ISSN: 2075-163X
    Topics: Geosciences
    Published by Molecular Diversity Preservation International
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  • 10
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    Geomechanical and petrographic assessment of a CO2 storage site: Application to the Acorn CO2 Storage Site, offshore United Kingdom (2020)
    Elsevier
    Details
    Publication Date: 2020-03-01
    Print ISSN: 1750-5836
    Electronic ISSN: 1878-0148
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Elsevier
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