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GEOREF RECORD

The Rotliegend reservoir in Block 30/24, UK central North Sea; including the Argyll (renamed Ardmore) and Innes Fields

Alan P. Heward, Paul Schofield and Jon G. Gluyas
The Rotliegend reservoir in Block 30/24, UK central North Sea; including the Argyll (renamed Ardmore) and Innes Fields
Petroleum Geoscience (November 2003) 9 (4): 295-307

Abstract

Rotliegend Auk Formation sandstones form the second most productive reservoir in the 30/24 fields and the major source of aquifer pressure support. In the Argyll Field, where the Zechstein oversteps beyond the Rotliegend on to Devonian continental sandstones, there were initial difficulties distinguishing between the Rotliegend and the Devonian. Four facies associations are present in the Rotliegend Auk Formation: aeolian slipface sands, aeolian wind-ripple sands, water-lain Weissliegend sands and other water-lain conglomerates, breccias and sands. Five reservoir zones consist of different proportions of these facies which infill topography and onlap the Argyll high. Their distribution and character reflect periods of sediment supply, subsidence and fluctuating climatic conditions toward the margin of an interior continental basin. The Auk Formation as a whole forms a high quality reservoir at depths of 3000-4000 m. The best intervals, with Darcy permeabilities, consist of coarse-grained Weissliegend sands. Two of the four initial wells in the Ardmore (Argyll) Field redevelopment are planned to target the Rotliegend Reservoir.


ISSN: 1354-0793
Serial Title: Petroleum Geoscience
Serial Volume: 9
Serial Issue: 4
Title: The Rotliegend reservoir in Block 30/24, UK central North Sea; including the Argyll (renamed Ardmore) and Innes Fields
Affiliation: Alan Heward & Associates, Muscat, Oman
Pages: 295-307
Published: 200311
Text Language: English
Publisher: Geological Society Publishing House, London, United Kingdom
References: 34
Accession Number: 2005-027264
Categories: Economic geology, geology of energy sourcesStratigraphy
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables, sects., strat. col., geol. sketch maps
N50°00'00" - N59°00'00", W08°00'00" - E01°30'00"
N51°00'00" - N61°10'00", W04°00'00" - E11°00'00"
Secondary Affiliation: Tuscan Energy, GBR, United KingdomAcorn Oil and Gas, GBR, United Kingdom
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2022, American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 200511
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