Stuart, J, Mountney, NP, McCaffrey, WD et al. (2 more authors) (2014) Prediction of channel connectivity and fluvial style in the flood basin successions of the Upper Permian Rangal Coal Measures (Queensland). American Association of Petroleum Geologists (AAPG) Bulletin, 98 (2). 191 - 212. ISSN 0149-1423
Abstract
Predicting the presence and connectivity of reservoir-quality facies in otherwise mud-prone fluvial overbank successions is important because such sand bodies can potentially provide connectivity between larger neighboring sand bodies. This article addresses minor channelized fluvial elements (crevasse-splay and distributary channels) and attempts to predict the connectivity between such sand bodies in two interseam packages of the Upper Permian Rangal Coal Measures of northeastern Australia. Channel-body percent as measured in well logs was 2% in the upper (Aries-Castor) interseam and 17% in the lower (Castor-Pollux) interseam. Well spacing were too great to allow accurate correlation of channel bodies. The Ob River, Siberia, was used as a modern analog to supply planform geometric measurements of splay and distributary channels so that stochastic modeling of channel bodies was possible. The resulting models demonstrated that (1) channel-body connectivity is more uniform between minor distributary channels than between crevasse-splay channels; (2) relatively good connectivity is seen in proximal positions in splays but decreases distally from the source as channel elements diverge; and (3) connectivity tends to be greater down the axis of splays, with more isolated channel bodies occurring at the margins.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | ©2014. The American Association of Petroleum Geologists. All rights reserved. This is an author produced version of a paper published in AAPG Bulletin. Uploaded in accordance with the publisher's self-archiving policy |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 06 Feb 2015 10:56 |
Last Modified: | 18 Jan 2018 17:47 |
Published Version: | http://dx.doi.org/10.1306/06171312088 |
Status: | Published |
Publisher: | American Association of Petroleum Geologists |
Identification Number: | 10.1306/06171312088 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:82575 |