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The AAPG/Datapages Combined Publications Database

Journal of Petroleum Geology

Abstract

 

Journal of Petroleum Geology, vol. 19(4), October 1996, pp. 393-406
©Copyright 1996. Scientific Press, U.K. All rights reserved.

INTEGRATED OUTCROP ANALOGUE STUDIES FOR TRIASSIC ALLUVIAL RESERVOIRS: EXAMPLES FROM SOUTHERN GERMANY

T. Aigner*, U. Asprion*, J. Hornung*, W.-D. Junghans* and R. Kostrewa *

Outcrops of Upper Triassic (Keuper) alluvial sandstones in South Germany may provide analogues for recently-discovered hydrocarbon reservoirs in the North Sea Triassic. Using an integrated approach, reservoir heterogeneities in the outcropping sandstones may be characterized by means of (1) sequence stratigraphy (including facies and architectural element analysis aided by georadar profiling, and an identification of the hierarchy of sedimentary cycles); and (2) petrophysics (gamma-ray logging, and porosity and permeability measurements). Primary depositional facies and the stacking patterns of different fluvial cycles within larger-scale sedimentary cycles play a dominant role in determining the fluid flow behaviour of the sandstones.

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