Skip to Main Content
Book Chapter

Controls on the reservoir quality of Late Cretaceous Springar Formation deep-water fan systems in the Vøring Basin

By
Alana Finlayson
Alana Finlayson
1
BG Group, 100 Thames Valley Park Drive, Reading RG6 1PT, UK
Search for other works by this author on:
Angela Melvin
Angela Melvin
2
AM Geos Ltd, 46 Culter House Road, Milltimber, Aberdeen AB13 0EN, UK
Search for other works by this author on:
Alex Guise
Alex Guise
1
BG Group, 100 Thames Valley Park Drive, Reading RG6 1PT, UK
Search for other works by this author on:
James Churchill
James Churchill
1
BG Group, 100 Thames Valley Park Drive, Reading RG6 1PT, UK
Search for other works by this author on:
Published:
January 01, 2018

Abstract

A new reservoir quality model is proposed for the Late Cretaceous Springar Formation sandstones of the Vøring Basin. Instead of a depth-related compactional control on reservoir quality, distinct high- and low-permeability trends are observed. Fan sequences which sit on the high-permeability trend are characterized by coarse-grained facies with a low matrix clay content. These facies represent the highest energy sandy turbidite facies within the depositional system, and were deposited in channelized or proximal lobe settings. Fan sequences on the low-permeability trend are characterized by their finer grain size and the presence of detrital clay, which has been diagenetically altered to a highly microporous, illitic, pore-filling clay. These fan sequences are interpreted to have been deposited in proximal–distal lobe environments. Original depositional facies determines the sorting, grain size and detrital clay content, and is the fundamental control on reservoir quality, as the illitization of detrital clay is the main mechanism for reductions in permeability. Core-scale depositional facies were linked to seismic-scale fan elements in order to better predict porosity and permeability within each fan system, allowing calibrated risking and ranking of prospects within the Springar Formation play.

You do not currently have access to this article.

Figures & Tables

Contents

Geological Society, London, Special Publications

Petroleum Geology of NW Europe: 50 Years of Learning – Proceedings of the 8th Petroleum Geology Conference

M. Bowman
M. Bowman
University of Manchester, UK
Search for other works by this author on:
B. Levell
B. Levell
University of Oxford, UK
Search for other works by this author on:
The Geological Society of London
Volume
8
ISBN electronic:
9781786203151
Publication date:
January 01, 2018

References

Related

Citing Books via

Related Book Content
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal