Syndepositional Tectonic Controls and Palaeo-Topography of a Permian Tight Gas Reservoir in NW Germany

Beitrag in einer Fachzeitschrift
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Details zur Publikation

Autorinnen und Autoren: Vackiner AA, Stollhofen H, Antrett P, Back S, Kukla P, Bärle C
Zeitschrift: Journal of Petroleum Geology
Verlag: Wiley-Blackwell
Jahr der Veröffentlichung: 2011
Band: 34
Seitenbereich: 411-428.
ISSN: 0141-6421
Sprache: Englisch


Abstract


A combined tectonic-stratigraphic interpretation of three-dimensional seismic reflection, wireline log and core data is presented in this study focussing on a tight gas field in East Frisia, NW Germany. Upper Rotliegend reservoir rocks in the study area are of fluvio-aeolian origin and include dune, minor sandflat and wet to dry interdune deposits. Source rocks are Westphalian coals and a top seal is provided by Zechstein evaporites. Detailed analyses of palaeo-topography, fault activity and accommodation space development for strata of Permian age (Rotliegend and Zechstein groups) indicate that local depocentres developed within small-scale fault-controlled transtensional sub-basins. Synsedimentary half-graben development and fault activity occurred during Upper Rotliegend II (mainly Elbe Subgroup) deposition. Many Upper Rotliegend structures were then reactivated during the Triassic, Jurassic and Cretaceous, often with enhanced offsets and increased lateral extent. As a consequence, Rotliegend structures and stratigraphy were significantly displaced resulting in the relocation of former Rotliegend depocentres and associated tight gas reservoir facies. This tectonic overprint hampers the prediction of potential Rotliegend reservoirs, and shows that palaeo-environmental restoration is required in areas which have undergone multi-phase deformation histories. Exploration strategies in the study area have favoured drilling locations in present-day structural highs. This study suggests that sediment traps were controlled by synsedimentary Upper Rotliegend II to Zechstein palaeo-topography, defining a new concept for future tight gas exploration. © 2011 The Authors. Journal of Petroleum Geology © 2011 Scientific Press Ltd.



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Stollhofen, Harald Prof. Dr.
Lehrstuhl für Geologie (Exogene Dynamik)


Einrichtungen weiterer Autorinnen und Autoren

Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen


Zitierweisen

APA:
Vackiner, A.A., Stollhofen, H., Antrett, P., Back, S., Kukla, P., & Bärle, C. (2011). Syndepositional Tectonic Controls and Palaeo-Topography of a Permian Tight Gas Reservoir in NW Germany. Journal of Petroleum Geology, 34, 411-428.. https://dx.doi.org/10.1111/j.1747-5457.2011.00512.x

MLA:
Vackiner, Anna Alexandra, et al. "Syndepositional Tectonic Controls and Palaeo-Topography of a Permian Tight Gas Reservoir in NW Germany." Journal of Petroleum Geology 34 (2011): 411-428.

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Zuletzt aktualisiert 2018-09-08 um 15:38