Skip to Main Content
Book Chapter

Lateral accretion in a straight slope channel system: an example from the Forties Sandstone of the Huntington Field, UK Central North Sea

By
Chris Edwards
Chris Edwards
ERC Equipoise Ltd, Stephenson House, 2 Cherry Orchard Road, Croydon CR0 6BA, UK
Search for other works by this author on:
Sean McQuaid
Sean McQuaid
ERC Equipoise Ltd, Stephenson House, 2 Cherry Orchard Road, Croydon CR0 6BA, UK
Search for other works by this author on:
Stewart Easton
Stewart Easton
ERC Equipoise Ltd, Stephenson House, 2 Cherry Orchard Road, Croydon CR0 6BA, UK
Search for other works by this author on:
Don Scott
Don Scott
ERC Equipoise Ltd, Stephenson House, 2 Cherry Orchard Road, Croydon CR0 6BA, UK
Search for other works by this author on:
Andrew Couch
Andrew Couch
E.ON Exploration & Production, 129 Wilton Road, London SW1V 1JZ, UKPresent address: Premier Oil plc, 129 Wilton Road, London SW1V 1JZ, UK
Search for other works by this author on:
Ron Evans
Ron Evans
E.ON Exploration & Production, 129 Wilton Road, London SW1V 1JZ, UKPresent address: Premier Oil plc, 129 Wilton Road, London SW1V 1JZ, UK
Search for other works by this author on:
Stephen Hart
Stephen Hart
E.ON Exploration & Production, 129 Wilton Road, London SW1V 1JZ, UKHart Petroleum Consulting, Griffin House, 23 Old Leicester Road, Wansford, Cambridgeshire, UK
Search for other works by this author on:
Published:
January 01, 2018

Abstract

A rich dataset of core, well logs and 3D seismic data has been integrated to establish a depositional hierarchy of a Paleocene-aged, Forties slope channel system of the Huntington Field, Block 22/14b of the Central North Sea. The reservoir consists of a mix of high-concentration turbidites and muddy and sandy debrites deposited as a series of laterally offset, slope channel fills. Seismic data reveal that the channels were remarkably straight and devoid of meander bends, more commonly associated with sinuous slope channel networks. Paradoxically, the internal offlapping architecture draws close comparisons with lateral accretion packages that are widely accepted to be the products of secondary flow circulation around sinuous channel bends. The straight nature of the Huntington channels precludes such an interpretation but can be explained as a consequence of Coriolis effects acting upon suspension-dominated flows in Northern Hemisphere high latitudes, resulting in the preferential accretion of sediment along the right-hand bank (when viewed downstream) and leading to the eventual lateral avulsion of the channel. The observed architecture has been incorporated into a reservoir model in order to characterize the static connectivity of the field that will in turn serve as a basis for understanding production behaviour.

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

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal