Volcaniclastics as potential hydrocarbon reservoirs

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Authors:Seemann, U.; Scherer, M.
Author Affiliations:Primary:
Shell UK Explor. and Prod., London, United Kingdom
Univ. London, Queen Mary Coll., Dep. Geol. Sci., United Kingdom
Volume Title:Patterns of mineral diagenesis on the NW European continental shelf and their relations to facies and hydrocarbon accumulation
Volume Authors:Morgan, D. J., editor; Rawson, P. F.
Source:Clay Minerals, 19(3), p.457-470; Joint meeting of the Clay Minerals Group of the Mineralogical Society and the Petroleum Exploration Society of Great Britain ; Patterns of mineral diagenesis on the NW European continental shelf and their relations to facies and hydrocarbon accumulation, Cambridge, United Kingdom, April 7-8, 1984, edited by D. J. Morgan and P. F. Rawson. Publisher: Mineralogical Society, London, United Kingdom. ISSN: 0009-8558
Publication Date:1984
Note:In English. 23 refs.; illus. incl. 1 table, sketch maps
Summary:Volcaniclastics have not as yet been considered prime hydrocarbon exploration targets. This is because they contain a high proportion of mechanically and mineralogically unstable components which generally cause a faster deterioration in reservoir quality upon burial than is found in siliciclastics. Also, their complex mineralogical composition makes the burial-related diagenesis more difficult to understand. However, under favourable circumstances-such as devitrification at shallow depth, leaching of unstable particles, fracturing, or reworking-volcaniclastics may act as good reservoir rocks. Both favourable and unfavourable case histories are discussed. [D.J.M.]
Subjects:Cementation; Clastic rocks; Diagenesis; Fractures; Global; Leaching; Permeability; Petroleum; Petroleum exploration; Porosity; Reservoir rocks; Sedimentary rocks; SEM data; Volcaniclastics
Abstract Numbers:85M/2027
Record ID:1985033742
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland
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