Controls on reservoir compartmentalization of an upper Permian tight gas field in Germany and links to a modern analogue in the western U.S.
Antrett P, Vackiner AA, Kukla P, Back S, Stollhofen H (2012)
Publication Language: English
Publication Type: Journal article, Original article
Publication year: 2012
Journal
Book Volume: 18
Pages Range: 289-304
Abstract
This study focuses on the reservoir characteristics of a Permian
tight gas field in the Southern Permian Basin, Eastern Frisia, Germany. To
improve the understanding of the reservoir, 3D seismic, wireline and core
data were compared with a reservoir analogue in the Panamint Valley, United
States. Depositional environments of the Permian Upper Rotliegend II include
perennial saline lakes, coastal parallel sand belts comprising wet, damp and dry
sand flats and aeolian dunes with interdune deposits. Polygonal patterns at different
scales were observed on seismic horizon slices in the reservoir intervals
and the overlying Zechstein. Outlines of superordinate polygons coincide
with interpreted faults. Similar polygonal networks were identified on modern
dry lakes in the western United States. The kilometre-long, up to 1.20 m deep
open fissures in the Panamint Valley are interpreted to originate from the combined
effects of synaeresis and tectonics. Subsequently, the fissures were filled
with aeolian sediment. Vegetation growth confined to the lineaments indicates
enhanced fluid circulation. Such fissures systems may serve as weakness zones
and fault grain and impact reservoir quality in terms of hydraulic connectivity
of reservoir compartments. For the Rotliegend reservoirs, original porosities
and permeabilities of these zones were reduced to a minimum by enhanced
cementation along the fluid migration pathways. Permeability barriers and reservoir
compartmentalization, which can be clearly depicted on seismic attribute
volumes, are a potential result of this development.
Authors with CRIS profile
Involved external institutions
Germany (DE)How to cite
APA:
Antrett, P., Vackiner, A.A., Kukla, P., Back, S., & Stollhofen, H. (2012). Controls on reservoir compartmentalization of an upper Permian tight gas field in Germany and links to a modern analogue in the western U.S. Petroleum Geoscience, 18, 289-304. https://dx.doi.org/10.1144/1354-079311-037
MLA:
Antrett, Philipp, et al. "Controls on reservoir compartmentalization of an upper Permian tight gas field in Germany and links to a modern analogue in the western U.S." Petroleum Geoscience 18 (2012): 289-304.
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