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Geomechanics and geology (2017)

Turner, Jonathan P. [HerausgeberIn] ; Healy, Dave [HerausgeberIn] ; Hillis, Richard R. [HerausgeberIn] ; [et al.]

London : Geological Society

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Call number: 9/M 07.0421(458)

In: Geological Society special publication ; 485

Description / Table of Contents: Geomechanics investigates the origin, magnitude and deformational consequences of stresses in the crust. In recent years awareness of geomechanical processes has been heightened by societal debates on fracking, human-induced seismicity, natural geohazards and safety issues with respect to petroleum exploration drilling, carbon sequestration and radioactive waste disposal. This volume explores the common ground linking geomechanics with inter alia economic and petroleum geology, structural geology, petrophysics, seismology, geotechnics, reservoir engineering and production technology. Geomechanics is a rapidly developing field that brings together a broad range of subsurface professionals seeking to use their expertise to solve current challenges in applied and fundamental geoscience. A rich diversity of case studies herein showcase applications of geomechanics to hydrocarbon exploration and field development, natural and artificial geohazards, reservoir stimulation, contemporary tectonics and subsurface fluid flow. These papers provide a representative snapshot of the exciting state of geomechanics and establish it firmly as a flourishing subdiscipline of geology that merits broadest exposure across the academic and corporate geosciences.

Type of Medium: Monograph available for loan

Pages: 298 Seiten , Illustrationen, Diagramme, Karten , 26 cm

ISBN: 9781786203205

Series Statement: Geological Society / special publication no. 458

URL: http://sp.lyellcollection.org/content/458/1

Language: English

Location: Reading room

Branch Library: GFZ Library

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Geomechanics and Geology (2017)

Geological Society (London, U.K.) ; Turner, Jonathan P. ; Healy, Dave ; [et al.]

London : The Geological Society

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Keywords: geomechanics ; geomechanical processes ; fracking ; seismicity ; natural geohazards ; petroleum exploration ; drilling ; carbon sequestration

Description / Table of Contents: Geomechanics and geology: introduction / Jonathan P. Turner, Dave Healy, Richard R. Hillis and Michael J. Welch / Geological Society, London, Special Publications, 458, 1-5, 17 July 2017, https://doi.org/10.1144/SP458.15 --- The geology of geomechanics: petroleum geomechanical engineering in field development planning / M. A. Addis / Geological Society, London, Special Publications, 458, 7-29, 28 June 2017, https://doi.org/10.1144/SP458.7 --- In situ stress distribution and mechanical stratigraphy in the Bowen and Surat basins, Queensland, Australia / Emma Tavener, Thomas Flottmann and Sam Brooke-Barnett / Geological Society, London, Special Publications, 458, 31-47, 24 May 2017, https://doi.org/10.1144/SP458.4 --- Contemporary stress and neotectonics in the Otway Basin, southeastern Australia / David R. Tassone, Simon P. Holford, Rosalind King, Mark R. P. Tingay and Richard R. Hillis / Geological Society, London, Special Publications, 458, 49-88, 25 May 2017, https://doi.org/10.1144/SP458.10 --- State of stress in exhumed basins and implications for fluid flow: insights from the Illizi Basin, Algeria / Joseph M. English, Thomas Finkbeiner, Kara L. English and Rachida Yahia Cherif / Geological Society, London, Special Publications, 458, 89-112, 30 May 2017, https://doi.org/10.1144/SP458.6 --- Chalk reservoir of the Ockley accumulation, North Sea: in situ stresses, geology and implications for stimulation / T. J. Wynn, R. Kumar, R. Jones, K. Howell, D. Maxwell and P. Bailey / Geological Society, London, Special Publications, 458, 113-129, 30 May 2017, https://doi.org/10.1144/SP458.3 --- The edge of failure: critical stress overpressure states in different tectonic regimes / Richard H. Sibson / Geological Society, London, Special Publications, 458, 131-141, 24 May 2017, https://doi.org/10.1144/SP458.5 --- Active low-angle normal faults in the deep water Santos Basin, offshore Brazil: a geomechanical analogy between salt tectonics and crustal deformation / Marcos Fetter, Anderson Moraes and Andre Muller / Geological Society, London, Special Publications, 458, 143-154, 26 May 2017, https://doi.org/10.1144/SP458.11 --- Estimating friction in normal fault systems of the Basin and Range province and examining its geological context / Carson A. Richardson and Eric Seedorff / Geological Society, London, Special Publications, 458, 155-179, 25 May 2017, https://doi.org/10.1144/SP458.8 --- Natural CO2 sites in Italy show the importance of overburden geopressure, fractures and faults for CO2 storage performance and risk management / Jennifer J. Roberts, Mark Wilkinson, Mark Naylor, Zoe K. Shipton, Rachel A. Wood and R. Stuart Haszeldine / Geological Society, London, Special Publications, 458, 181-211, 19 June 2017, https://doi.org/10.1144/SP458.14 --- An improved procedure for pre-drill calculation of fracture pressure / Richard W. Lahann and Richard E. Swarbrick / Geological Society, London, Special Publications, 458, 213-225, 30 May 2017, https://doi.org/10.1144/SP458.13 --- Relationships between geomechanical properties and lithotypes in NW European chalks / Fanny Descamps, Ophélie Faÿ-Gomord, Sara Vandycke, Christian Schroeder, Rudy Swennen and Jean-Pierre Tshibangu / Geological Society, London, Special Publications, 458, 227-244, 25 May 2017, https://doi.org/10.1144/SP458.9 --- Mechanical constraints on kink band and thrust development in the Appalachian Plateau, USA / Paul Gillespie and Günther Kampfer / Geological Society, London, Special Publications, 458, 245-256, 12 June 2017, https://doi.org/10.1144/SP458.12 --- Opening-mode fracture systems: insights from recent fluid inclusion microthermometry studies of crack-seal fracture cements / Joseph M. English and Stephen E. Laubach / Geological Society, London, Special Publications, 458, 257-272, 24 May 2017, https://doi.org/10.1144/SP458.1 --- Geomechanical characterization of mud volcanoes using P-wave velocity datasets / Rashad Gulmammadov, Stephen Covey-Crump and Mads Huuse / Geological Society, London, Special Publications, 458, 273-292, 24 May 2017, https://doi.org/10.1144/SP458.2

Pages: Online-Ressource (VII, 298 Seiten) , Illustrationen, Diagramme, Karten

ISBN: 9781786203205

URL: http://sp.lyellcollection.org/content/458/1

Language: English

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Evidence for kilometre-scale Neogene exhumation driven by compressional deformation in the Irish Sea basin system (2008)

Holford, Simon P. ; Green, Paul F. ; Turner, Jonathan P. ; [et al.]

In: Geological Society Special Publication 306: 91-119.

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Publication Date: 2008-10-08

Description: Large tracts of the NW European continental shelf and Atlantic margin have experienced kilometre-scale exhumation during the Cenozoic, the timing and causes of which are debated. There is particular uncertainty about the exhumation history of the Irish Sea basin system, Western UK, which has been suggested to be a focal point of Cenozoic exhumation across the NW European continental shelf. Many studies have attributed the exhumation of this region to processes associated with the early Palaeogene initiation of the Iceland Plume, whilst the magnitude and causes of Neogene exhumation have attracted little attention. However, the sedimentary basins of the southern Irish Sea contain a mid-late Cenozoic sedimentary succession up to 1.5 km in thickness, the analysis of which should permit the contributions of Palaeogene and Neogene events to the Cenozoic exhumation of this region to be separated. In this paper, an analysis of the palaeothermal, mechanical and structural properties of the Cenozoic succession is presented with the aim of quantifying the timing and magnitude of Neogene exhumation, and identifying its ultimate causes. Synthesis of an extensive apatite fission-track analysis (AFTA), vitrinite reflectance (VR) and compaction (sonic velocity and density log-derived porosities) database shows that the preserved Cenozoic sediments in the southern Irish Sea were more deeply buried by up to 1.5 km of additional section prior to exhumation which began between 20 and 15 Ma. Maximum burial depths of the preserved sedimentary succession in the St George's Channel Basin were reached during mid-late Cenozoic times meaning that no evidence for early Palaeogene exhumation is preserved whereas AFTA data from the Mochras borehole (onshore NW Wales) show that early Palaeogene cooling (i.e. exhumation) at this location was not significant. Seismic reflection data indicate that compressional shortening was the principal driving mechanism for the Neogene exhumation of the southern Irish Sea. Coeval Neogene shortening and exhumation is observed in several sedimentary basins around the British Isles, including those along the UK Atlantic margin. This suggests that the forces responsible for the deformation and exhumation of the margin may also be responsible for the generation of kilometre-scale exhumation in an intraplate sedimentary basin system located 〉1000 km from the most proximal plate boundary. The results presented here show that compressional deformation has made an important contribution to the Neogene exhumation of the NW European continental shelf.

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Sonic velocity analysis of the Tertiary denudation of the Irish Sea basin (2002)

Ware, Philip D. ; Turner, Jonathan P.

In: Geological Society Special Publication 196: 355-370.

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Publication Date: 2002-01-01

Description: Interaction between uplift related to the Cretaceous--Paleocene opening of the North Atlantic, Neogene shortening (basin inversion) and Pleistocene glacio-isostasy is illustrated by the complex denudation pattern of Britain; such denudation is greatest over the submergent East Irish Sea basin, some 500 km from the Atlantic margin. This paper reports on analysis of sedimentary porosities using sonic velocity logs from 42 wells in the East Irish Sea basin. We present a new map showing the variation in exhumation magnitude at the uppermost Mesozoic unconformity (i.e. thickness of denuded Mesozoic and Cenozoic sedimentary rocks), today buried beneath a thin veneer of Pleistocene sediment. It indicates that exhumation is mostly 〈 1500 m (632-2132 m; mean standard deviation 407 m), less than denudation results obtained from vitrinite reflectance and apatite fission-track data. The map also reveals substantial variation in exhumation over short distances, often between adjacent wells sited on opposing walls of individual faults. This is interpreted in terms of the influence of Neogene basin inversion on the exhumation of the EISB. The role of late Tertiary tectonics in western UK exhumation is therefore discussed.

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