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High Resolution Stratigraphy (1993)

Geological Society (London, U.K.) ; Hailwood, Ernest A. ; Kidd, Robert B.

London : The Geological Society

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Keywords: Stratigraphie ; organischer Stoff ; Fossil ; Altersbestimmung ; Untersuchungsmethode ; Paläoklima ; Feinstratigraphie ; Estratigrafia ; Geology, Stratigraphic ; Paleontology, Stratigraphic ; Submarine geology

Description / Table of Contents: Robert B. Kidd and Ernest A. Hailwood: High resolution stratigraphy in modern and ancient marine sequences: ocean sediment cores to Palaeozoic outcrop / Geological Society, London, Special Publications, 70:1-8, doi:10.1144/GSL.SP.1993.070.01.01 --- Techniques: Chronology and Correlations --- Alan G. Smith: Methods for improving the chronometric time-scale / Geological Society, London, Special Publications, 70:9-25, doi:10.1144/GSL.SP.1993.070.01.02 --- Alan E. Mussett and Alan G. McCormack: Magnetic polarity timescales: a new test / Geological Society, London, Special Publications, 70:27-37, doi:10.1144/GSL.SP.1993.070.01.03 --- Roy Thompson and R. M. Clark: Quantitative marine sediment core matching using a modified sequence-slotting algorithm / Geological Society, London, Special Publications, 70:39-49, doi:10.1144/GSL.SP.1993.070.01.04 --- Quarternary and Tertiary --- Matthew B. Smith, Jon G. Poynter, Stuart A. Bradshaw, and Geoffrey Eglinton: High resolution molecular stratigraphy: analytical methodology / Geological Society, London, Special Publications, 70:51-63, doi:10.1144/GSL.SP.1993.070.01.05 --- Simon G. Robinson: Lithostratigraphic applications for magnetic susceptibility logging of deep-sea sediment cores: examples from ODP Leg 115 / Geological Society, London, Special Publications, 70:65-98, doi:10.1144/GSL.SP.1993.070.01.06 --- Jason R. Ali, Christopher King, and Ernest A. Hailwood: Magnetostratigraphic calibration of early Eocene depositional sequences in the southern North Sea Basin / Geological Society, London, Special Publications, 70:99-125, doi:10.1144/GSL.SP.1993.070.01.07 --- D. Graham Jenkins and Paul Gamson: The late Cenozoic Globorotalia truncatulinoides datum-plane in the Atlantic, Pacific and Indian oceans / Geological Society, London, Special Publications, 70:127-130, doi:10.1144/GSL.SP.1993.070.01.08 --- Sally S. Radford and Li Qianyu: Eocene-Miocene high latitude biostratigraphy / Geological Society, London, Special Publications, 70:131-136, doi:10.1144/GSL.SP.1993.070.01.09 --- P. P. E. Weaver: High resolution stratigraphy of marine Quaternary sequences / Geological Society, London, Special Publications, 70:137-153, doi:10.1144/GSL.SP.1993.070.01.10 --- R. C. Whatley: Ostracoda as biostratigraphical indices in Cenozoic deep-sea sequences / Geological Society, London, Special Publications, 70:155-167, doi:10.1144/GSL.SP.1993.070.01.11 --- R. W. O’B. Knox: Tephra layers as precise chronostratigraphical markers / Geological Society, London, Special Publications, 70:169-186, doi:10.1144/GSL.SP.1993.070.01.12 --- Walther Schwarzacher: Milankovitch cycles in the pre-Pleistocene stratigraphic record: a review / Geological Society, London, Special Publications, 70:187-194, doi:10.1144/GSL.SP.1993.070.01.13 --- Mesozoic --- J. M. McArthur, M. F. Thirlwall, A. S. Gale, W. J. Kennedy, J. A. Burnett, D. Mattey, and A. R. Lord: Strontium isotope stratigraphy for the Late Cretaceous: a new curve, based on the English Chalk / Geological Society, London, Special Publications, 70:195-209, doi:10.1144/GSL.SP.1993.070.01.14 --- David S. Wray and A. S. Gale: Geochemical correlation of marl bands in Turonian chalks of the Anglo-Paris Basin / Geological Society, London, Special Publications, 70:211-226, doi:10.1144/GSL.SP.1993.070.01.15 --- Malcolm B. Hart: Cretaceous foraminiferal events / Geological Society, London, Special Publications, 70:227-240, doi:10.1144/GSL.SP.1993.070.01.16 --- Jake M. Hancock: Transatlantic correlations in the Campanian-Maastrichtian stages by eustatic changes of sea-level / Geological Society, London, Special Publications, 70:241-256, doi:10.1144/GSL.SP.1993.070.01.17 --- John C. W. Cope: High resolution biostratigraphy / Geological Society, London, Special Publications, 70:257-265, doi:10.1144/GSL.SP.1993.070.01.18 --- Palaeozoic --- Michael R. House and William T. Kirchgasser: Devonian goniatite biostratigraphy and timing of facies movements in the Frasnian of eastern North America / Geological Society, London, Special Publications, 70:267-292, doi:10.1144/GSL.SP.1993.070.01.19 --- R. Thomas Becker, Michael R. House, and William T. Kirchgasser: Devonian goniatite biostratigraphy and timing of facies movements in the Frasnian of the Canning Basin, Western Australia / Geological Society, London, Special Publications, 70:293-321, doi:10.1144/GSL.SP.1993.070.01.20 --- David K. Loydell: Worldwide correlation of Telychian (Upper Llandovery) strata using graptolites / Geological Society, London, Special Publications, 70:323-340, doi:10.1144/GSL.SP.1993.070.01.21 --- M. D. Brasier: Towards a carbon isotope stratigraphy of the Cambrian System: potential of the Great Basin succession / Geological Society, London, Special Publications, 70:341-350, doi:10.1144/GSL.SP.1993.070.01.22

Pages: Online-Ressource (VI, 357 Seiten) , Illustrationen, Diagramme

ISBN: 0903317869

URL: http://sp.lyellcollection.org/content/70/1

Language: English

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Palaeocene Sedimentation and Stratigraphy in Norfolk, England (1985)

Cox, Frank C. ; Hailwood, Ernest A. ; Harland, Rex ; [et al.]

Schweizerbart

In: Newsletters on Stratigraphy. 1985; 14(3): 169-185. Published 1985 May 31. doi: 10.1127/nos/14/1985/169.

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Publication Date: 1985-05-31

Print ISSN: 0078-0421

Electronic ISSN: 2363-6122

Topics: Geosciences

Published by Schweizerbart

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A new technology for the characterization of microfractured reservoirs (test case: Unayzah reservoir, Wudayhi field, Saudi Arabia) (2008)

Ameen, Mohammed S. ; Hailwood, Ernest A.

American Association of Petroleum Geologists

In: AAPG Bulletin. 2008; 92(1): 31-52. Published 2008 Jan 01. doi: 10.1306/08200706090.

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Publication Date: 2008-01-01

Description: This article presents a test case of a new technology using artificially enhanced anisotropy of magnetic susceptibility (referred to here as EAMS) for the characterization of microfractured reservoirs. These are reservoirs in which microfractures are essential to porosity and/or permeability. A conventional geological characterization is costly, time consuming, and difficult to quantify in terms of assessing fracture impact on porosity and permeability. Therefore, an efficient and effective method is required to characterize these microfractures and to determine their contribution to porosity and permeability. The EAMS technology, which we developed and tested, allows rapid analysis that bridges reservoir geology and engineering. Using petrography, the margin of error to detect microfractures that impact porosity and/or permeability is 43%; however, it requires three times the sampling rate of the new EAMS technology. The lower part of the Unayzah reservoir (Unayzah-B/C) in the Wudayhi field, Saudi Arabia, where fractures were studied and microfractures are known to impact reservoir performance, is used to develop and verify the EAMS technology. The results show that EAMS-derived microfracture fabric strikes east-northeast–west-southwest, consistent with that obtained by geological means. The effective-porosity profile obtained from EAMS tests is similar to that of the conventionally acquired porosity. Open microfractures in tested samples increase mean values of reservoir effective porosity by 36–50% in Unayzah-B/C. The occurrence of connected microfractures is estimated to cause an increase in average permeability of 75% in Unayzah-B/C. This is in agreement with the fact that wells in microfractured Unayzah-B/C have 4.5–14 times the productivity of wells as nonfractured sections of this reservoir. A maximum permeability trend of northeast-southwest permeability anisotropy is detected. The implementation of the EAMS technology in other fields with microfractured reservoirs will directly impact operational and simulation effort. Mohammed S. Ameen was awarded his Ph.D. and D.I.C. in structural geology and geomechanics from Imperial College, London, in 1988. He has more than 20 years of academic and industrial experience. He joined the Reservoir Characterization Department in Saudi Aramco, in 1998, and is currently leading the Structural Geology and Rock Mechanics Group in the Geological Technical Services Division, Saudi Aramco. He is an active member of the AAPG, Society of Petroleum Engineers, European Association of Geoscientists and Engineers, and the Geological Society (London). Ernest A. Hailwood graduated from the University of Newcastle upon Tyne, United Kingdom, with a Ph.D. in paleomagnetism in 1971 and joined the University of Southampton, where he became head of Marine Geology and Geophysics and established a highly successful research laboratory specializing in sediment magnetism. He founded the company Core Magnetics in 1992 to provide services in paleomagnetic and rock magnetic measurements for the hydrocarbon industry.

Print ISSN: 0149-1423

Electronic ISSN: 1943-2674

Topics: Geosciences