Reservoir Scale Sequence Stratigraphy for Hydrocarbon Production and Development: Tarbat–Ipundu Field, South-West Queensland, Australia

  1. Michael D. Blum3,
  2. Susan B. Marriott4 and
  3. Suzanne F. Leclair5
  1. Robert S. Root1,
  2. Simon C. Lang1 and
  3. Dennis Harrison2

Published Online: 17 MAR 2009

DOI: 10.1002/9781444304350.ch28

Fluvial Sedimentology VII

Fluvial Sedimentology VII

How to Cite

Root, R. S., Lang, S. C. and Harrison, D. (2009) Reservoir Scale Sequence Stratigraphy for Hydrocarbon Production and Development: Tarbat–Ipundu Field, South-West Queensland, Australia, in Fluvial Sedimentology VII (eds M. D. Blum, S. B. Marriott and S. F. Leclair), Blackwell Publishing Ltd., Oxford, UK. doi: 10.1002/9781444304350.ch28

Editor Information

  1. 3

    Baton Rouge, Louisiana, USA

  2. 4

    School of Geography and Environmental Management, University of the West of England, Bristol BS16 1QY, UK

  3. 5

    Department of Earth and Environmental Sciences, Tulane University, Dimwiddie Hall, New Orleans, LA 70118, USA

Author Information

  1. 1

    Australian School of Petroleum and the Australian Petroleum Cooperative Research Centre, University of Adelaide, SA, 5005, Australia

  2. 2

    Santos House, Level 14, 60 Edward Street, Brisbane, Qld, 4000, Australia

Publication History

  1. Published Online: 17 MAR 2009
  2. Published Print: 15 FEB 2005

Book Series:

  1. Special Publication Number 35 of the International Association of Sedimentologists

Book Series Editors:

  1. Ian Jarvis

Series Editor Information

  1. School of Earth Sciences and Geography, Centre for Earth and Environmental Science Research, Kingston University, Penrhyn Road, Kingston-upon-Thames KT1 2EE, UK

ISBN Information

Print ISBN: 9781405126519

Online ISBN: 9781444304350

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Keywords:

  • reservoir scale sequence stratigraphy - Tarbat–Ipundu field;
  • success of sequence-stratigraphy approach for understanding large-scale, spatial stratigraphical relationships;
  • sedimentology of Wyandra sandstone member;
  • sequence stratigraphy of Wyandra sandstone member;
  • reservoir heterogeneity in Wyandra Sandstone Member - occlusion of primary porosity and permeability by kaolinite;
  • highstand systems tract (HST);
  • implications for reservoir production and development;
  • occurrence of sandstones showing good reservoir properties

Summary

The value of sequence stratigraphy to petroleum exploration stems from understanding spatial stratigraphical relationships and developing new play concepts. In contrast, the value of sequence stratigraphy to reservoir development stems from providing stratigraphical divisions that facilitate geologically meaningful models of reservoir heterogeneity. Understanding the relationship between reservoir properties and depositional facies allows modern analogues to be used as tools for selecting meaningful geological models that guide reservoir development.

This study uses an oil field data set from Tarbat–Ipundu Field in South-west Queensland, Australia to demonstrate how sequence stratigraphy can be applied at the reservoir scale. The Wyandra Sandstone Member of the Cadnaowie Formation is a thin (c. 20 m), fluvial to marginal-marine volcaniclastic sandstone reservoir. Reservoir heterogeneity results almost exclusively from diagenetic processes, but the spatial distribution of medium- to very coarse-grained sandstone within the reservoir is a significant influence on the occurrence and intensity of diagenesis.

Sequence-stratigraphy surfaces mapped across the field define a lower fluvio-lacustrine highstand systems tract, a middle sheet-like, fluvial lowstand systems tract, and an upper estuarine to marginal-marine transgressive systems tract. The majority of reservoir sandstone (horizontal permeability > 10 mD, porosity > 20%) is contained within the lowstand systems tract. To understand the internal architecture of the reservoir, however, modern fluvial depositional analogues are used to explain the distribution of medium- to very coarse-grained sandstone. The implication for reservoir development is that a genetically meaningful sequence-stratigraphy framework is essential to understand reservoir heterogeneity.