Deformation bands evolving from dilation to cementation bands in a hydrocarbon reservoir (Vienna Basin, Austria)

Deformation bands evolving from dilation to cementation bands in a hydrocarbon reservoir (Vienna Basin, Austria)

In this study we analyzed five core samples from a hydrocarbon reservoir, the Matzen Field in the Vienna Basin (Austria). Deformation bands occur as single bands or as strands of several bands. In contrast to most published examples of deformation bands in terrigeneous sandstones, the reduction of p...

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Veröffentlicht in:Marine and petroleum geology 2013-05, Vol.43, p.504-515
Hauptverfasser: Exner, Ulrike, Kaiser, Jasmin, Gier, Susanne
Format: Artikel
Sprache:eng
Schlagworte:
Bands
Cementation
Cements
Deformation bands
Dolomite
Earth sciences
Earth, ocean, space
Exact sciences and technology
Fluid flow
Fluids
Grains
Hydrocarbons
Marine
Porosity
Reservoir compartmentalization
Reservoirs
Sedimentary rocks
Stable isotopes
Stratigraphy
Subseismic deformation
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Beschreibung
Zusammenfassung:In this study we analyzed five core samples from a hydrocarbon reservoir, the Matzen Field in the Vienna Basin (Austria). Deformation bands occur as single bands or as strands of several bands. In contrast to most published examples of deformation bands in terrigeneous sandstones, the reduction of porosity is predominantly caused by the precipitation of Fe-rich dolomite cement within the bands, and only subordinately by cataclasis of detrital grains. The chemical composition of this dolomite cement (10–12 wt% FeO) differs from detrital dolomite grains in the host rock (
ISSN:0264-8172
1873-4073
DOI:10.1016/j.marpetgeo.2012.10.001